| IATA | ICAO | Airport name | Location |
|---|
| CAA | MHCA | Catacamas Airport | Catacamas, Honduras |
| CAB | FNCA | Cabinda Airport | Cabinda, Angola |
| CAC | SBCA | Cascavel Airport | Cascavel, Paraná, Brazil |
| CAD | KCAD | Wexford County Airport | Cadillac, Michigan, United States |
| CAE | KCAE | Columbia Metropolitan Airport | West Columbia (near Columbia), South Carolina, United States |
| CAF | SWCA | Carauari Airport | Carauari, Amazonas, Brazil |
| CAG | LIEE | Cagliari Airport | Cagliari, Italy |
| CAH | VVCM | Ca Mau Airport | Ca Mau, Vietnam |
| CAI | HECA | Cairo International Airport | Cairo, Egypt |
| CAJ | SVCN | Canaima Airport | Canaima, Venezuela |
| CAK | KCAK | Akron-Canton Regional Airport | Akron / Canton, Ohio, United States |
| CAL | EGEC | Campbeltown Airport (RAF Machrihanish) | Campbeltown, Scotland |
| CAM | SLCA | Camiri Airport | Camiri, Bolivia |
| CAN | ZGGG | Guangzhou Baiyun International Airport | Guangzhou, Guangdong, People's Republic of China |
| CAO | KCAO | Clayton Municipal Airpark | Clayton, New Mexico, United States |
| CAP | MTCH | Cap-Haïtien International Airport | Cap-Haïtien, Haiti |
| CAQ | SKCU | Caucasia Airport | Caucasia, Antioquia, Colombia |
| CAR | KCAR | Caribou Municipal Airport | Caribou, Maine, United States |
| CAS | GMMC | Anfa Airport | Casablanca, Morocco |
| CAT | MYCB | New Bight Airport | Cat Island, Bahamas |
| CAU | SNRU | Oscar Laranjeias Airport | Caruaru, Pernambuco, Brazil |
| CAV | FNCZ | Cazombo Airport | Cazombo, Angola |
| CAW | SBCP | Bartolomeu Lisandro Airport | Campos dos Goitacazes, Rio de Janeiro, Brazil |
| CAX | EGNC | Carlisle Airport | Carlisle, England, United Kingdom |
| CAY | SOCA | Cayenne-Rochambeau Airport | Cayenne, French Guiana |
| CAZ | YCBA | Cobar Airport | Cobar, New South Wales, Australia |
| CBB | SLCB | Jorge Wilstermann International Airport | Cochabamba, Bolivia |
| CBC | | Cherrabun Airport | Cherrabun, Western Australia, Australia |
| CBD | VOCX | Car Nicobar Air Force Base | Car Nicobar, India |
| CBE | KCBE | Greater Cumberland Regional Airport | Cumberland, Maryland, United States |
| CBF | KCBF | Council Bluffs Municipal Airport | Council Bluffs, Iowa, United States |
| CBG | EGSC | Cambridge Airport | Cambridge, England, United Kingdom |
| CBH | DAOR | Boudghene Ben Ali Lotfi Airport | Béchar, Algeria |
| CBI | | Cape Barren Island Airport | Cape Barren Island, Tasmania, Australia |
| CBJ | MDCR | Cabo Rojo Airport | Pedernales, Dominican Republic |
| CBK | KCBK | Colby Municipal Airport (Shalz Field) | Colby, Kansas, United States |
| CBL | SVCB | Tomás de Heres Airport | Ciudad Bolivar, Venezuela |
| CBM | KCBM | Columbus Air Force Base | Columbus, Mississippi, United States |
| CBN | WICD | Penggung Airport | Cirebon, Java, Indonesia |
| CBO | RPMC | Awang Airport | Cotabato, Philippines |
| CBP | LPCO | Coimbra Airport | Coimbra, Portugal |
| CBQ | DNCA | Calabar Airport | Calabar, Nigeria |
| CBR | YSCB | Canberra International Airport | Canberra, Australia |
| CBS | SVON | Oro Negro Airport | Cabimas, Venezuela |
| CBT | FNCT | Catumbela Airport | Catumbela, Angola |
| CBU | EDCD | Drewitz Airport | Cottbus, Brandenburg, Germany |
| CBV | MGCB | Cobán Airport | Cobán, Alta Verapaz, Guatemala |
| CBW | SSKM | Campo Mourão Airport | Campo Mourão, Paraná, Brazil |
| CBX | YCDO | Condobolin Airport | Condobolin, New South Wales, Australia |
| CBY | | Canobie Airport | Canobie, Queensland, Australia |
| CCB | KCCB | Cable Airport | Upland, California, United States |
| CCC | MUOC | Jardines del Rey Airport | Cayo Coco, Cuba |
| CCD | | Century City Heliport (FAA: 84CL) | Los Angeles, California, United States |
| CCE | TFFG | L'Espérance Airport (Grand Case Airport) | Saint Martin, Guadeloupe |
| CCF | LFMK | Carcassonne Salvaza Airport | Carcassonne, France |
| CCG | | Crane County Airport (FAA: E13) | Crane, Texas, United States |
| CCH | SCCC | Chile Chico Airport | Chile Chico, Aisén Region, Chile |
| CCI | SSCK | Concordia Airport | Concordia, Amazonas, Brazil |
| CCJ | VOCL | Calicut Airport | Kozhikode (Calicut), India |
| CCK | | Cocos Islands Airport | Cocos Islands, Australia |
| CCL | YCCA | Chinchilla Airport | Chinchilla, Queensland, Australia |
| CCM | SBCM | Forquilhinha Airport | Criciúma, Santa Catarina, Brasil |
| CCN | OACC | Chaghcharan Airport | Chaghcharan, Afghanistan |
| CCO | SKCI | Carimagua Airport | Puerto López, Meta, Colombia |
| CCP | SCIE | Carriel Sur International Airport | Concepción, Biobío Region, Chile |
| CCQ | | Cachoeira Airport | Cachoeira, Bahia, Brazil |
| CCR | KCCR | Buchanan Field | Concord, California, United States |
| CCS | SVMI | Simon Bolivar International Airport | Maiquetia (near Caracas), Venezuela |
| CCT | | Colonia Catriel Airport | Colonia Catriel, Río Negro, Argentina |
| CCU | VECC | Netaji Subhash Chandra Bose International Airport | Dum Dum (near Kolkata), India |
| CCV | NVSF | Craig Cove Airport | Craig Cove, Ambrym Island, Malampa, Vanuatu |
| CCW | YCWL | Cowell Airport | Cowell, South Australia, Australia |
| CCX | SWKC | Cáceres Airport | Cáceres, Minas Gerais, Brazil |
| CCY | KCCY | Northeast Iowa Regional Airport | Charles City, Iowa, United States |
| CCZ | MYBC | Chub Cay International Airport | Chub Cay, Berry Islands, Bahamas |
| CDA | YCOO | Cooinda Airport | Cooinda, Northern Territory, Australia |
| CDB | PACD | Cold Bay Airport | Cold Bay, Alaska, United States |
| CDC | KCDC | Cedar City Regional Airport | Cedar City, Utah, United States |
| CDD | | Cauquira Airport | Cauquira, Honduras |
| CDE | PACE | Cape Decision Coast Guard Heliport | Cape Decision, Alaska, United States |
| CDF | | Fiames Airport | Cortina d'Ampezzo, Italy |
| CDG | LFPG | Charles de Gaulle International Airport (Roissy Airport) | Paris, France |
| CDH | KCDH | Harrell Field | Camden, Arkansas, United States |
| CDI | | Cachoeiro de Itapemirim Airport | Cachoeiro de Itapemirim, Brazil |
| CDJ | SBAA | Conceição do Araguaia Airport | Conceição do Araguaia, Pará, Brazil |
| CDK | KCDK | George T. Lewis Airport | Cedar Key, Florida, United States |
| CDL | | Candle 2 Airport (FAA: AK75) | Candle, Alaska, United States |
| CDN | KCDN | Woodward Field | Camden, South Carolina, United States |
| CDO | FACD | Cradock Airport | Cradock, Eastern Cape, South Africa |
| CDP | VOCP | Cuddapah Airport | Cuddapah, India |
| CDQ | YCRY | Croydon Airport | Croydon, Queensland, Australia |
| CDR | KCDR | Chadron Municipal Airport | Chadron, Nebraska, United States |
| CDS | KCDS | Childress Municipal Airport | Childress, Texas, United States |
| CDU | YSCN | Camden Airport | Camden, New South Wales, Australia |
| CDV | PACV | Merle K. (Mudhole) Smith Airport | Cordova, Alaska, United States |
| CDW | KCDW | Essex County Airport | Caldwell, New Jersey, United States |
| CDY | RPMU | Cagayan de Sulu Airport | Mapun, Tawi-Tawi, Philippines |
| CEA | KCEA | Cessna Aircraft Field | Wichita, Kansas, United States |
| CEB | RPVM | Mactan-Cebu International Airport | Lapu-Lapu City, Metro Cebu, Cebu, Philippines |
| CEC | KCEC | Jack McNamara Field | Crescent City, California, United States |
| CED | YCDU | Ceduna Airport | Ceduna, South Australia, Australia |
| CEE | ULWC | Cherepovets Airport | Cherepovets, Vologda Oblast, Russia |
| CEF | KCEF | Westover ARB/Westover Metropolitan Airport | Springfield/Chicopee, Massachusetts, United States |
| CEG | EGNR | Hawarden Airport (Chester Airport) | Chester, England, United Kingdom |
| CEH | FWCD | Chelinda Airport | Chelinda, Malawi |
| CEI | VTCT | Chiang Rai International Airport | Chiang Rai, Thailand |
| CEJ | UKKL | Chernihiv Shestovitsa Airport | Chernihiv, Ukraine |
| CEK | USCC | Chelyabinsk Balandino Airport | Chelyabinsk, Russia |
| CEL | MYEC | Cape Eleuthera Airport | Cape Eleuthera, Bahamas |
| CEM | PARL | Central Airport | Central, Alaska, United States |
| CEN | MMCN | Ciudad Obregón International Airport | Ciudad Obregón, Sonora, Mexico |
| CEO | FNWK | Waco Kungo Airport | Waco Kungo, Angola |
| CEP | SLCP | Concepción Airport | Concepción, Bolivia |
| CEQ | LFMD | Cannes - Mandelieu Airport | Cannes, France |
| CER | LFRC | Cherbourg - Maupertus Airport | Cherbourg, France |
| CES | YCNK | Cessnock Airport | Cessnock, New South Wales, Australia |
| CET | LFOU | Cholet Le Pontreau Airport | Cholet, France |
| CEU | KCEU | Oconee County Regional Airport | Clemson, South Carolina, United States |
| CEV | KCEV | Mettel Field | Connersville, भारतna, United States |
| CEW | KCEW | Bob Sikes Airport | Crestview, Florida, United States |
| CEX | | Chena Hot Springs Airport (FAA: AK13) | Chena Hot Springs, Alaska, United States |
| CEY | KCEY | Kyle-Oakley Field | Murray, Kentucky, United States |
| CEZ | KCEZ | Cortez Municipal Airport | Cortez, Colorado, United States |
| CFB | SBCB | Cabo Frio International Airport | Cabo Frio, Rio de Janeiro, Brazil |
| CFD | KCFD | Coulter Field | Bryan, Texas, United States |
| CFE | LFLC | Clermont-Ferrand Auvergne Airport | Clermont-Ferrand, France |
| CFF | FNCF | Cafunfo Airport | Cafunfo, Angola |
| CFG | MUCF | Jaime González Airport | Cienfuegos, Cuba |
| CFH | | Clifton Hills Airport | Clifton Hills, South Australia, Australia |
| CFI | | Camfield Airport | Camfield, Northern Territory, Australia |
| CFN | EIDL | Donegal Airport | Carrickfinn, Ireland |
| CFO | | Confreza Airport | Confreza, Mato Grosso, Brazil |
| CFP | | Carpentaria Downs Airport | Carpentaria Downs, Queensland, Australia |
| CFR | LFRK | Caen - Carpiquet Airport | Caen, France |
| CFS | YCFS | Coffs Harbour Airport | Coffs Harbour, New South Wales, Australia |
| CFT | KCFT | Greenlee County Airport | Clifton/Morenci, Arizona, United States |
| CFU | LGKR | Ioannis Kapodistrias International Airport (Corfu International Airport) | Corfu, Greece |
| CFV | KCFV | Coffeyville Municipal Airport | Coffeyville, Kansas, United States |
| CGA | | Craig Seaplane Base | Craig, Alaska, United States |
| CGB | SBCY | Marechal Rondon Airport | Cuiabá, Mato Grosso, Brazil |
| CGC | | Cape Gloucester Airport | Cape Gloucester, Papua New Guinea |
| CGD | ZGCD | Changde Airport | Changde, Hunan, China |
| CGE | KCGE | Cambridge-Dorchester Airport | Cambridge, Maryland, United States |
| CGF | KCGF | Cuyahoga County Airport | Cleveland, Ohio, United States |
| CGH | SBSP | Congonhas/São Paulo International Airport | São Paulo, Brazil |
| CGI | KCGI | Cape Girardeau Regional Airport | Cape Girardeau, Missouri, United States |
| CGJ | | Chingola Airport | Chingola, Zambia |
| CGK | WIII | Soekarno-Hatta International Airport | Jakarta, Indonesia |
| CGM | RPMH | Camiguin Airport | Mambajao, Camiguin, Philippines |
| CGN | EDDK | Cologne Bonn Airport (Köln/Bonn - Konrad Adenauer) | Cologne, North Rhine-Westphalia, Germany |
| CGO | ZHCC | Zhengzhou Xinzheng International Airport | Zhengzhou, Henan, China |
| CGP | VGEG | Shah Amanat International Airport | Chittagong, Bangladesh |
| CGQ | ZYCC | Changchun Longjia International Airport | Changchun, Jilin, China |
| CGR | SBCG | Campo Grande International Airport | Campo Grande, Mato Grosso do Sul, Brazil |
| CGS | KCGS | College Park Airport | College Park, Maryland, United States |
| CGT | | Chinguitti Airport | Chinguitti, Mauritania |
| CGU | SVPR | General Manuel Carlos Piar Airport | Ciudad Guayana, Venezuela |
| CGV | YCAG | Caiguna Airport | Caiguna, Western Australia, Australia |
| CGY | RPML | Lumbia Airport | Cagayan de Oro, Philippines |
| CGZ | KCGZ | Casa Grande Municipal Airport | Casa Grande, Arizona, United States |
| CHA | KCHA | Chattanooga Metropolitan Airport (Lovell Field) | Chattanooga, Tennessee, United States |
| CHB | OPCL | Chilas Airport | Chilas, Pakistan |
| CHC | NZCH | Christchurch International Airport | Christchurch, New Zealand |
| CHE | | Reenroe Airport | Caherciveen, County Kerry, Republic of Ireland |
| CHF | RKPE | Chinhae Airport | Chinhae, South Korea |
| CHG | ZYCY | Chaoyang Airport | Chaoyang, China |
| CHH | SPPY | Chachapoyas Airport | Chachapoyas, Peru |
| CHI | | All Airports | Chicago, Illinois, United States |
| CHJ | FVCH | Chipinge Airport | Chipinge, Zimbabwe |
| CHK | KCHK | Chickasha Municipal Airport | Chickasha, Oklahoma, United States |
| CHL | KLLJ | Challis Airport (FAA: LLJ) | Challis, Idaho, United States |
| CHM | SPEO | Tnte. FAP Jaime Montreuil Morales Airport | Chimbote, Ancash Region, Peru |
| CHN | RKJU | Chonju Airport | Chonju, South Korea |
| CHO | KCHO | Charlottesville-Albemarle Airport | Charlottesville, Virginia, United States |
| CHP | | Circle Hot Springs Airport | Circle Hot Springs, Alaska, United States |
| CHQ | LGSA | Chania International Airport ("Ioannis Daskalogiannis") | Chania, Greece |
| CHR | LFLX | Châteauroux-Déols "Marcel Dassault" Airport | Châteauroux / Déols, France |
| CHS | KCHS | Charleston International Airport / Charleston AFB | Charleston, South Carolina, United States |
| CHT | NZCI | Chatham Islands / Tuuta Airport | Waitangi, Chatham Islands, New Zealand |
| CHT | KCHT | Chillicothe Municipal Airport | Chillicothe, Missouri, United States |
| CHU | | Chuathbaluk Airport (FAA: 9A3) | Chuathbaluk, Alaska, United States |
| CHV | LPCH | Chaves Airport | Chaves, Portugal |
| CHW | ZLJQ | Jiuquan Airport | Jiuquan, Gansu, China |
| CHX | MPCH | Captain Manuel Niño International Airport | Changuinola, Bocas del Toro, Panama |
| CHY | AGGC | Choiseul Bay Airport | Choiseul Bay, Taro Island, Solomon Islands |
| CHZ | | Chiloquin State Airport (FAA: 2S7) | Chiloquin, Oregon, United States |
| CIA | LIRA | Rome Ciampino Airport (Giovan Battista Pastine Airport) | Rome, Italy |
| CIB | KAVX | Catalina Airport (FAA: AVX) | Avalon, California, United States |
| CIC | KCIC | Chico Municipal Airport | Chico, California, United States |
| CID | KCID | The Eastern Iowa Airport | Cedar Rapids, Iowa, United States |
| CIE | | Collie Airport | Collie, Western Australia, Australia |
| CIF | ZBCF | Chifeng Airport | Chifeng, Inner Mongolia, China |
| CIG | KCAG | Craig-Moffat Airport (FAA: CAG) | Craig, Colorado, United States |
| CIH | ZBCZ | Changzhi Airport | Changzhi, Shanxi, China |
| CIJ | SLCO | Capitan Anibal Arab Airport | Cobija, Bolivia |
| CIK | PACI | Chalkyitsik Airport | Chalkyitsik, Alaska, United States |
| CIL | | Council Airport (FAA: K29) | Council, Alaska, United States |
| CIM | SKCM | Cimitarra Airport | Cimitarra, Colombia |
| CIN | KCIN | Arthur N. Neu Airport | Carroll, Iowa, United States |
| CIO | SGCO | Teniente Coronel Carmelo Peralta Airport | Concepcion, Paraguay |
| CIP | FLCP | Chipata Airport | Chipata, Zambia |
| CIQ | | Chiquimula Airport | Chiquimula, Chiquimula, Guatemala |
| CIR | KCIR | Cairo Regional Airport | Cairo, Illinois, United States |
| CIS | PCIS | Canton Island Airport | Canton Island, Kiribati |
| CIT | UAII | Shymkent Airport | Shymkent, Kazakhstan |
| CIU | KCIU | Chippewa County International Airport | Sault Ste Marie, Michigan, United States |
| CIW | TVSC | Canouan Island Airport | Canouan Island, Saint Vincent and the Grenadines |
| CIX | SPHI | Capitán FAP José A. Quiñones Gonzales International Airport | Chiclayo, Peru |
| CIY | LICB | Comiso Airport | Comiso, Italy |
| CIZ | SWKO | Coari Airport | Coari, Amazonas, Brazil |
| CJA | SPJR | Major General FAP Armando Revoredo Iglesias Airport | Cajamarca, Perú |
| CJB | VOCB | Coimbatore Airport (Peelamedu Airport) | Coimbatore, India |
| CJC | SCCF | El Loa Airport | Calama, Antofagasta Region, Chile |
| CJD | | Candilejas Airport | Candilejas, Colombia |
| CJH | | Chilko Lake (Tsylos Park Lodge) Airport (TC: CAG3) | Chilko Lake, British Columbia, Canada |
| CJJ | RKTU | Cheong Ju International Airport | Cheong ju, South Korea |
| CJL | OPCH | Chitral Airport | Chitral, Pakistan |
| CJM | VTSE | Chumphon Airport | Chumphon, Thailand |
| CJS | MMCS | Abraham González International Airport | Ciudad Juárez, Chihuahua, Mexico |
| CJT | MMCO | Copalar Airport | Comitán, Chiapas, Mexico |
| CJU | RKPC | Jeju International Airport | Jeju, South Korea |
| CKA | KCKA | Kegelman Air Force Auxiliary Field | Cherokee, Oklahoma, United States |
| CKB | KCKB | North Central West Virginia Airport | Clarksburg, West Virginia, United States |
| CKC | UKKE | Cherkassy Airport | Cherkassy, Ukraine |
| CKD | | Crooked Creek Airport (FAA: CJX) | Crooked Creek, Alaska, United States |
| CKE | | Ferndale Resort Seaplane Base (FAA: CN20) | Kelseyville, California, United States |
| CKF | KCKF | Crisp County-Cordele Airport | Cordele, Georgia, United States |
| CKG | ZUCK | Chongqing Jiangbei International Airport | Chongqing, China |
| CKH | UESO | Chokurdah Airport | Chokurdah, Russia |
| CKI | YCKI | Croker Island Airport | Croker Island, Northern Territory, Australia |
| CKM | KCKM | Fletcher Field | Clarksdale, Mississippi, United States |
| CKN | KCKN | Crookston Municipal Airport (Kirkwood Field) | Crookston, Minnesota, United States |
| CKO | SSCP | Cornelio Procopio Airport | Cornelio Procopio, Paraná, Brazil |
| CKS | SBCJ | Carajas Airport | Carajás, Pará, Brazil |
| CKT | OIMC | Sarakhs Airport | Sarakhs, Iran |
| CKU | | Cordova Municipal Airport | Cordova, Alaska, United States |
| CKV | KCKV | Outlaw Field | Clarksville, Tennessee, United States |
| CKX | | Chicken Airport | Chicken, Alaska, United States |
| CKY | GUCY | Gbessia Airport | Conakry, Guinea |
| CKZ | LTBH | Çanakkale Airport | Çanakkale, Turkey |
| CLA | VGCM | Comilla Airport | Comilla, Bangladesh |
| CLB | EICB | Castlebar Airport | Castlebar, County Mayo, Ireland |
| CLD | KCRQ | McClellan-Palomar Airport (FAA: CRQ) | Carlsbad, California, United States |
| CLE | KCLE | Cleveland Hopkins International Airport | Cleveland, Ohio, United States |
| CLF | | Clear Sky Lodge Airport | Clear, Alaska, United States |
| CLG | | New Coalinga Municipal Airport (FAA: C80) | Coalinga, California, United States |
| CLH | YCAH | Coolah Airport | Coolah, New South Wales, Australia |
| CLI | KCLI | Clintonville Municipal Airport | Clintonville, Wisconsin, United States |
| CLJ | LRCL | Cluj-Napoca International Airport | Cluj-Napoca, Romania |
| CLK | KCLK | Clinton Regional Airport | Clinton, Oklahoma, United States |
| CLL | KCLL | Easterwood Airport (Easterwood Field) | College Station, Texas, United States |
| CLM | KCLM | William R. Fairchild International Airport | Port Angeles, Washington, United States |
| CLN | SBCI | Carolina Airport | Carolina, Maranhão, Brazil |
| CLO | SKCL | Alfonso Bonilla Aragón International Airport | Cali, Colombia |
| CLP | PFCL | Clarks Point Airport | Clarks Point, Alaska, United States |
| CLQ | MMIA | Licenciado Miguel de la Madrid Airport | Colima, Colima, Mexico |
| CLR | KCLR | Cliff Hatfield Memorial Airport | Calipatria, California, United States |
| CLS | KCLS | Chehalis-Centralia Airport | Chehalis, Washington, United States |
| CLT | KCLT | Charlotte/Douglas International Airport | Charlotte, North Carolina, United States |
| CLU | KBAK | Columbus Municipal Airport (FAA: BAK) | Columbus, भारतna, United States |
| CLV | SWKN | Caldas Novas Airport | Caldas Novas, Goiás, Brazil |
| CLW | KCLW | Clearwater Air Park | Clearwater, Florida, United States |
| CLX | SATC | Clorinda Airport | Clorinda, Formosa, Argentina |
| CLY | LFKC | Calvi - Sainte-Catherine Airport | Calvi, Corsica, France |
| CLZ | SVCL | Calabozo Airport | Calabozo, Venezuela |
| CMA | YCMU | Cunnamulla Airport | Cunnamulla, Queensland, Australia |
| CMB | VCBI | Bandaranaike International Airport | Colombo, Sri Lanka |
| CMC | SNWC | Camocim Airport | Camocim, Ceará, Brazil |
| CMD | YCTM | Cootamundra Airport | Cootamundra, New South Wales, Australia |
| CME | MMCE | Ciudad del Carmen International Airport | Ciudad del Carmen, Campeche, Mexico |
| CMF | LFLB | Chambéry-Savoie Airport | Chambéry, France |
| CMG | SBCR | Corumbá International Airport | Corumbá, Mato Grosso do Sul, Brazil |
| CMH | KCMH | Port Columbus International Airport | Columbus, Ohio, United States |
| CMI | KCMI | University of Illinois Willard Airport | Champaign-Urbana, Illinois, United States |
| CMJ | RCCM | Cimei Airport | Cimei, Taiwan |
| CMK | FWCM | Club Makokola Airport | Club Makokola, Malawi |
| CML | YCMW | Camooweal Airport | Camooweal, Queensland, Australia |
| CMM | MGCR | Carmelita Airport | Carmelita, El Petén, Guatemala |
| CMN | GMMN | Mohammed V International Airport | Casablanca, Morocco |
| CMO | HCMO | Obbia Airport | Obbia, Somalia |
| CMP | SNKE | Campo Alegre Airport | Santana do Araguaia, Pará, Brazil |
| CMQ | YCMT | Clermont Airport | Clermont, Queensland, Australia |
| CMR | LFGA | Colmar - Houssen Airport | Colmar / Houssen, France |
| CMS | HCMS | Scusciuban Airport | Scusciuban, Somalia |
| CMT | | Cameta Airport | Cameta, Pará, Brazil |
| CMU | AYCH | Chimbu Airport | Kundiawa, Papua New Guinea |
| CMV | NZCX | Coromandel Airport | Coromandel, New Zealand |
| CMW | MUCM | Camagüey-Ignacio Agramonte Airport | Camaguey, Cuba |
| CMX | KCMX | Houghton County Memorial Airport | Hancock, Michigan, United States |
| CMY | KCMY | Sparta/Fort McCoy Airport | Sparta, Wisconsin, United States |
| CNA | MMCA | Cananea Airport | Cananea, Sonora, México |
| CNB | YCNM | Coonamble Airport | Coonamble, New South Wales, Australia |
| CNC | YCCT | Coconut Island Airport | Coconut Island (Poruma Island), Queensland, Australia |
| CND | LRCK | Mihail Kogalniceanu International Airport | Constanta, Romania |
| CNE | | Fremont County Airport (FAA: 1V6) | Cañon City, Colorado, United States |
| CNF | SBCF | Tancredo Neves International Airport (Confins Int'l) | Belo Horizonte, Minas Gerais, Brazil |
| CNG | LFBG | Cognac - Châteaubernard Air Base | Cognac / Châteaubernard, France |
| CNH | KCNH | Claremont Municipal Airport | Claremont, New Hampshire, United States |
| CNI | ZYCH | Changhai Airport | Changhai, China |
| CNJ | YCCY | Cloncurry Airport | Cloncurry, Queensland, Australia |
| CNK | KCNK | Blosser Municipal Airport | Concordia, Kansas, United States |
| CNL | EKSN | Sindal Airport | Sindal, Denmark |
| CNM | KCNM | Cavern City Air Terminal | Carlsbad, New Mexico, United States |
| CNN | UELL | Neryungri Airport | Chulman, Yakutia, Russia |
| CNO | KCNO | Chino Airport | Chino, California, United States |
| CNP | BGCO | Nerlerit Inaat Airport (Constable Pynt Airport) | Nerlerit Inaat (Constable Pynt), Greenland |
| CNQ | SARC | Doctor Fernando Piragine Niveyro International Airport | Corrientes, Corrientes, Argentina |
| CNR | SCRA | Chañaral Airport | Chañaral, Atacama Region, Chile |
| CNS | YBCS | Cairns International Airport | Cairns, Queensland, Australia |
| CNT | | Charata Airport | Charata, Chubut, Argentina |
| CNU | KCNU | Chanute Martin Johnson Airport | Chanute, Kansas, United States |
| CNV | SNED | Canavieiras Airport | Canavieiras, Bahia, Brazil |
| CNW | KCNW | TSTC Waco Airport | Waco, Texas, United States |
| CNX | VTCC | Chiang Mai International Airport | Chiang Mai, Thailand |
| CNY | KCNY | Canyonlands Field | Moab, Utah, United States |
| CNZ | | Cangamba Airport | Cangamba, Angola |
| COA | | Columbia Airport (FAA: O22) | Columbia, California, United States |
| COB | | Coolibah Airport | Coolibah, Northern Territory, Australia |
| COC | SAAC | Concordia Airport (Comodoro Pierrestegui Airport) | Concordia, Entre Ríos, Argentina |
| COD | KCOD | Yellowstone Regional Airport | Cody, Wyoming, United States |
| COE | KCOE | Coeur d'Alene Air Terminal | Coeur d'Alene, Idaho, United States |
| COF | KCOF | Patrick Air Force Base | Cocoa Beach, Florida, United States |
| COG | SKCD | Mandinga Airport | Condoto, Colombia |
| COH | VECO | Cooch Behar Airport | Cooch Behar, India |
| COI | KCOI | Merritt Island Airport | Merritt Island, Florida, United States |
| COJ | YCBB | Coonabarabran Airport | Coonabarabran, New South Wales, Australia |
| COK | VOCI | Cochin International Airport Limited | NEDUMBASSERYKochi,KERALA,India.(Cochin), India |
| COL | | Coll Island Airport | Coll Island, Scotland, United Kingdom |
| COM | KCOM | Coleman Municipal Airport | Coleman, Texas, United States |
| CON | KCON | Concord Municipal Airport | Concord, New Hampshire, United States |
| COO | DBBB | Cadjehoun Airport | Cotonou, Benin |
| COP | | Cooperstown-Westville Airport (FAA: K23) | Cooperstown, New York, United States |
| COQ | ZMCD | Choibalsan Airport | Choibalsan, Mongolia |
| COR | SACO | Ingeniero Ambrosio L.V. Taravella International Airport (Pajas Blancas) | Córdoba, Córdoba, Argentina |
| COS | KCOS | Colorado Springs Airport | Colorado Springs, Colorado, United States |
| COT | KCOT | Cotulla-La Salle County Airport | Cotulla, Texas, United States |
| COU | KCOU | Columbia Regional Airport | Columbia, Missouri, United States |
| COV | LPCV | Covilhã Airport | Covilhã, Portugal |
| COW | SCQB | Coquimbo Airport | Coquimbo, Coquimbo Region, Chile |
| COX | MYAK | Congo Town Airport | Congo Town, Andros Island, Bahamas |
| COY | | Coolawanyah Airport | Coolawanyah, Western Australia, Australia |
| COZ | MDCZ | Constanza Airport | Constanza, Dominican Republic |
| CPA | GLCP | Cape Palmas Airport (A. Tubman Airport) | Cape Palmas, Liberia |
| CPB | SKCA | Capurgana Airport | Capurgana, Colombia |
| CPC | SAZY | Aviador Carlos Campos Airport | San Martín de los Andes, Neuquén, Argentina |
| CPD | YCBP | Coober Pedy Airport | Coober Pedy, South Australia, Australia |
| CPE | MMCP | Ing. Alberto Acuña Ongay International Airport | Campeche, Campeche, Mexico |
| CPF | WRSC | Cepu Airport | Cepu, Indonesia |
| CPG | | Carmen de Patagones Airport | Carmen de Patagones, Buenos Aires, Argentina |
| CPH | EKCH | Copenhagen Airport, Kastrup Airport | Copenhagen (København), Denmark |
| CPL | SKHA | General Navas Pardo Airport | Chaparral, Colombia |
| CPM | KCPM | Compton/Woodley Airport | Compton, California, United States |
| CPN | | Cape Rodney Airport | Cape Rodney, Papua New Guinea |
| CPO | SCHA | Chamonate Airport | Copiapó, Atacama Region, Chile |
| CPQ | SDAM | Amarais Airport | Campinas, São Paulo, Brazil |
| CPR | KCPR | Natrona County International Airport | Casper, Wyoming, United States |
| CPS | KCPS | St. Louis Downtown Airport | Cahokia, Illinois (near St. Louis, Missouri), United States |
| CPT | FACT | Cape Town International Airport | Cape Town, South Africa |
| CPU | | Cururupu Airport | Cururupu, Maranhão, Brazil |
| CPV | SBKG | Presidente Vargas Airport (João Suassuna Airport) | Campina Grande, Paraíba, Brazil |
| CPX | TJCP | Benjamin Rivera Noriega Airport | Isla de Culebra, Puerto Rico |
| CQA | | Canarana Airport | Canarana, Mato Grosso, Brazil |
| CQD | OIFS | Shahre-Kord Airport | Shahre-Kord, Iran |
| CQF | LFAC | Calais - Dunkerque Airport | Calais / Dunkerque, France |
| CQM | LERL | Ciudad Real Central Airport | Ciudad Real, Spain |
| CQP | | Cape Flattery Airport | Cape Flattery, Queensland, Australia |
| CQS | SWCQ | Costa Marques Airport | Costa Marques, Rondônia, Brazil |
| CQT | | Caquetania Airport | Caquetania, Colombia |
| CRA | LRCV | Craiova Airport | Craiova, Romania |
| CRB | YCBR | Collarenebri Airport | Collarenebri, New South Wales, Australia |
| CRC | SKGO | Santa Ana Airport | Cartago, Colombia |
| CRD | SAVC | General Enrique Mosconi International Airport | Comodoro Rivadavia, Chubut, Argentina |
| CRE | KCRE | Grand Strand Airport | North Myrtle Beach, South Carolina, United States |
| CRF | FEFC | Carnot Airport | Carnot, Central African Republic |
| CRG | KCRG | Craig Municipal Airport | Jacksonville, Florida, United States |
| CRH | | Cherribah Airport | Cherribah, Queensland, Australia |
| CRI | MYCI | Colonel Hill Airport (Crooked Island Airport) | Colonel Hill, Crooked Island, Bahamas |
| CRJ | | Coorabie Airport | Coorabie, South Australia, Australia |
| CRK | RPLC | Diosdado Macapagal International Airport | Luzon Island, Philippines |
| CRL | EBCI | Brussels South Charleroi Airport | Charleroi, Wallonia, Belgium |
| CRM | RPVF | Catarman National Airport | Catarman, Samar Island, Philippines |
| CRN | | Cromarty Airport | Cromarty, Scotland, United Kingdom |
| CRO | KCRO | Corcoran Airport | Corcoran, California, United States |
| CRP | KCRP | Corpus Christi International Airport | Corpus Christi, Texas, United States |
| CRQ | SBCV | Caravelas Airport | Caravelas, Bahia, Brazil |
| CRR | SANW | Ceres Airport | Ceres, Santa Fe, Argentina |
| CRS | KCRS | Corsicana Municipal Airport (C. David Campbell Field) | Corsicana, Texas, United States |
| CRT | KCRT | Z.M. Jack Stell Field | Crossett, Arkansas, United States |
| CRU | | Carriacou Island Airport | Carriacou Island, Grenada |
| CRV | LIBC | Crotone Airport | Crotone, Italy |
| CRW | KCRW | Yeager Airport | Charleston, West Virginia, United States |
| CRX | KCRX | Roscoe Turner Airport | Corinth, Mississippi, United States |
| CRY | | Carlton Hill Airport | Carlton Hill, Western Australia, Australia |
| CRZ | UTAV | Turkmenabat Airport | Chardzhou, Turkmenistan |
| CSA | | Colonsay Airport | Colonsay, Inner Hebrides, Scotland, United Kingdom |
| CSB | LRCS | Caransebes Airport | Caransebes, Romania |
| CSC | | Canas Airport | Canas, Costa Rica |
| CSD | | Cresswell Downs Airport | Cresswell Downs, Northern Territory, Australia |
| CSE | | Buckhorn Ranch Airport (FAA: 0CO2) | Crested Butte, Colorado, United States |
| CSF | LFPC | Creil Air Base | Creil, France |
| CSG | KCSG | Columbus Metropolitan Airport | Columbus, Georgia, United States |
| CSI | YCAS | Casino Airport | Casino, New South Wales, Australia |
| CSJ | | Cape St. Jacques Airport | Cape St. Jacques, Vietnam |
| CSK | GOGS | Cap Skirring Airport | Cap Skirring, Senegal |
| CSL | KCSL | O'Sullivan Army Heliport | Camp San Luis Obispo, California, United States |
| CSM | KCSM | Clinton-Sherman Airport | Clinton, Oklahoma, United States |
| CSN | KCXP | Carson Airport (FAA: CXP) | Carson City, Nevada, United States |
| CSP | PACA | Cape Spencer Coast Guard Heliport | Cape Spencer, Alaska, United States |
| CSQ | KCSQ | Creston Municipal Airport | Creston, Iowa, United States |
| CSR | | Casuarito Airport | Casuarito, Colombia |
| CSS | SSCL | Cassilândia Airport | Cassilândia, Mato Grosso do Sul, Brazil |
| CST | NFCS | Castaway Island Resort Airport | Castaway Island Resort, Qalito Island, Fiji |
| CSV | KCSV | Crossville Memorial-Whitson Field | Crossville, Tennessee, United States |
| CSW | | Colorado do Oeste Airport | Colorado do Oeste, Rondônia, Brazil |
| CSX | ZGHA | Changsha Huanghua International Airport | Changsha, China |
| CSY | UWKS | Cheboksary Airport | Cheboksary, Chuvashia, Russia |
| CSZ | SAZC | Brigadier Hector Eduardo Ruiz Airport | Coronel Suárez, Buenos Aires, Argentina |
| CTA | LICC | Catania-Fontanarossa Airport | Catania, Sicily, Italy |
| CTB | KCTB | Cut Bank Municipal Airport | Cut Bank, Montana, United States |
| CTC | SANC | Coronel Felipe Varela Airport | Catamarca, Catamarca, Argentina |
| CTD | MPCE | Herrera Alonso Valderrama Airport | Chitré, Panamá |
| CTE | | Carti Airport | Carti, Panamá |
| CTF | MGCT | Coatepeque Airport | Coatepeque, Quetzaltenango, Guatemala |
| CTG | SKCG | Rafael Núñez International Airport | Cartagena, Colombia |
| CTH | KMQS | Chester County G. O. Carlson Airport (FAA: MQS) | Coatesville, Pennsylvania, United States |
| CTI | FNCV | Cuito Cuanavale Airport | Cuito Cuanavale, Angola |
| CTK | | Canton Municipal Airport (FAA: 7G9) | Canton, South Dakota, United States |
| CTL | YBCV | Charleville Airport | Charleville, Queensland, Australia |
| CTM | MMCM | Chetumal International Airport | Chetumal, Quintana Roo, Mexico |
| CTN | YCKN | Cooktown Airport | Cooktown, Queensland, Australia |
| CTO | | Calverton Executive Airpark (FAA: 3C8) | Calverton, New York, United States |
| CTP | SNCP | Carutapera Airport | Carutapera, Maranhão, Brazil |
| CTQ | SSVP | Do Palmar Airport | Santa Vitória, Rio Grande do Sul, Brazil |
| CTR | | Cattle Creek Airport | Cattle Creek, Northern Territory, Australia |
| CTS | RJCC | Chitose International Airport | Sapporo, Hokkaido, Japan |
| CTT | LFMQ | Le Castellet Airport | Le Castellet, France |
| CTU | ZUUU | Chengdu Shuangliu International Airport | Chengdu, Sichuan, People's Republic of China |
| CTW | | Cottonwood Airport (FAA: P52) | Cottonwood, Arizona, United States |
| CTX | | Cortland County Airport (Chase Field, FAA: N03) | Cortland, New York, United States |
| CTY | KCTY | Cross City Airport | Cross City, Florida, United States |
| CTZ | KCTZ | Sampson County Airport | Clinton, North Carolina, United States |
| CUA | | Ciudad Constitución Airport | Ciudad Constitución, Baja California Sur, México |
| CUB | KCUB | Columbia Owens Downtown Airport | Columbia, South Carolina, United States |
| CUC | SKCC | Camilo Daza International Airport | Cúcuta, Colombia |
| CUD | YCDR | Caloundra Airport | Caloundra, Queensland, Australia |
| CUE | SECU | Mariscal Lamar Airport | Cuenca, Ecuador |
| CUF | LIMZ | Levaldigi Airport | Cuneo, Italy |
| CUG | YCUA | Cudal Airport | Cudal, New South Wales, Australia |
| CUH | KCUH | Cushing Municipal Airport | Cushing, Oklahoma, United States |
| CUI | | Currillo Airport | Currillo, Colombia |
| CUJ | | Culion Airport | Culion, Philippines |
| CUK | | Caye Caulker Airport | Caye Caulker, Belize |
| CUL | MMCL | Federal de Bachigualato International Airport | Culiacán, Sinaloa, Mexico |
| CUM | SVCU | Antonio José de Sucre Airport | Cumana, Venezuela |
| CUN | MMUN | Cancún International Airport | Cancún, Quintana Roo, Mexico |
| CUO | SKCR | Caruru Airport | Caruru, Colombia |
| CUP | SVCP | General José Francisco Bermúdez Airport | Carúpano, Venezuela |
| CUQ | YCOE | Coen Airport | Coen, Queensland, Australia |
| CUR | TNCC | Hato International Airport | near Willemstad, Curaçao, Netherlands Antilles |
| CUS | | Columbus Municipal Airport (FAA: 0NM0) | Columbus, New Mexico, United States |
| CUT | SAZW | Cutral Có Airport | Cutral Có, Neuquén, Argentina |
| CUU | MMCU | General Roberto Fierro Villalobos International Airport | Chihuahua, Chihuahua, Mexico |
| CUV | SVCG | El Cubo Airport | Casigua, Venezuela |
| CUX | | Cuddihy Field (FAA: 07TE) | Corpus Christi, Texas, United States |
| CUY | YCUE | Cue Airport | Cue, Western Australia, Australia |
| CUZ | SPZO | Alejandro Velasco Astete International Airport | Cusco, Cusco Region, Peru |
| CVB | | Chungribu Airport | Chungribu, Papua New Guinea |
| CVC | YCEE | Cleve Airport | Cleve, South Australia, Australia |
| CVE | SKCV | Covenas Airport | Covenas, Colombia |
| CVF | LFLJ | Courchevel Aerodrome | Courchevel, France |
| CVG | KCVG | Cincinnati/Northern Kentucky International Airport | Hebron, Kentucky (near Cincinnati, Ohio), United States |
| CVH | | Caviahue Airport | Caviahue, Neuquén, Argentina |
| CVI | | Caleta Olivia Airport | Caleta Olivia, Santa Cruz, Argentina |
| CVJ | MMCB | General Mariano Matamoros Airport | Cuernavaca, Morelos, Mexico |
| CVL | | Cape Vogel Airport | Cape Vogel, Papua-New Guinea |
| CVM | MMCV | General Pedro J. Méndez National Airport | Ciudad Victoria, Tamaulipas, Mexico |
| CVN | KCVN | Clovis Municipal Airport | Clovis, New Mexico, United States |
| CVO | KCVO | Corvallis Municipal Airport | Corvallis, Oregon, United States |
| CVQ | YCAR | Carnarvon Airport | Carnarvon, Western Australia, Australia |
| CVS | KCVS | Cannon Air Force Base | Clovis, New Mexico, United States |
| CVT | EGBE | Coventry Airport | Coventry, West Midlands, England, United Kingdom |
| CVU | LPCR | Corvo Island Airport | Corvo Island, Azores, Portugal |
| CWA | KCWA | Central Wisconsin Airport | Mosinee, Wisconsin, United States |
| CWB | SBCT | Afonso Pena International Airport | Curitiba, Paraná, Brazil |
| CWC | UKLN | Chernovtsy Airport | Chernovtsy, Ukraine |
| CWF | KCWF | Chennault International Airport | Lake Charles, Louisiana, United States |
| CWI | KCWI | Clinton Municipal Airport | Clinton, Iowa, United States |
| CWL | EGFF | Cardiff International Airport | Cardiff, Wales, United Kingdom |
| CWP | | Campbellpore Airport | Campbellpore, Pakistan |
| CWR | YCWI | Cowarie Airport | Cowarie, South Australia, Australia |
| CWS | | Center Island Airport (FAA: 78WA) | Center Island, Washington, United States |
| CWT | YCWR | Cowra Airport | Cowra, New South Wales, Australia |
| CWW | YCOR | Corowa Airport | Corowa, New South Wales, Australia |
| CXA | SVCD | Caicara de Orinoco Airport | Caicara de Orinoco, Venezuela |
| CXB | VGCB | Cox's Bazar Airport | Cox's Bazar, Bangladesh |
| CXC | | Chitina Airport | Chitina, Alaska, United States |
| CXF | PACX | Coldfoot Airport | Coldfoot, Alaska, United States |
| CXH | CYHC | Vancouver Harbour Water Aerodrome (Coal Harbour Seaplane Base) | Vancouver, British Columbia, Canada |
| CXI | PLCH | Cassidy International Airport | Christmas Island, Kiribati |
| CXJ | SBCX | Aeroporto Hugo Cantergiani | Caxias do Sul, Rio Grande do Sul, Brazil |
| CXL | KCXL | Calexico International Airport | Calexico, California, United States |
| CXM | FNCX | Camaxilo Airport | Camaxilo, Angola |
| CXN | HCMC | Candala Airport | Candala, Somalia |
| CXO | KCXO | Lone Star Executive Airport | Houston, Texas, United States |
| CXP | WIHL | Tunggul Wulung Airport | Cilacap, Java Island, Indonesia |
| CXQ | YPXM | Christmas Creek Airport | Christmas Creek, Western Australia, Australia |
| CXR | VVCR | Cam Ranh International Airport | Cam Ranh, Khanh Hoa, Vietnam |
| CXT | YCHT | Charters Towers Airport | Charters Towers, Queensland, Australia |
| CXY | MYCC | Cat Cay Airport | Cat Cay, Bimini Islands, Bahamas |
| CYA | MTCA | Les Cayes Airport | Les Cayes, Haiti |
| CYB | MWCB | Gerrard Smith International Airport | Cayman Brac, Cayman Islands |
| CYC | | Caye Chapel Airport | Caye Chapel, Belize |
| CYF | PACK | Chefornak Airport (FAA: CFK) | Chefornak, Alaska, United States |
| CYG | YCRG | Corryong Airport | Corryong, Victoria, Australia |
| CYI | RCKU | Chiayi Airport | Chiayi, Taiwan |
| CYL | | Coyoles Airport | Coyoles, Honduras |
| CYM | | Chatham Seaplane Base | Chatham, Alaska, United States |
| CYO | MUCL | Vilo Acuña Airport | Cayo Largo del Sur, Cuba |
| CYP | RPVC | Calbayog Airport | Calbayog, Philippines |
| CYR | SUCA | Laguna de Los Patos International Airport | Colonia, Uruguay |
| CYS | KCYS | Cheyenne Regional Airport (Jerry Olson Field) | Cheyenne, Wyoming, United States |
| CYT | PACY | Yakataga Airport | Cape Yakataga, Alaska, United States |
| CYU | RPLO | Cuyo Airport | Cuyo, Palawan, Philippines |
| CYW | MMCY | Captain Rogelio Castillo National Airport | Celaya, Guanajuato, Mexico |
| CYX | UESS | Cherskiy Airport | Cherskiy, Yakutia, Russia |
| CYZ | RPUY | Cauayan Airport | Cauayan, Luzon Island, Philippines |
| CZA | MMCT | Chichen Itza International Airport | Chichén Itzá, Yucatán, Mexico |
| CZB | | Carlos Ruhl Airport | Cruz Alta, Rio Grande do Sul, Brazil |
| CZC | | Copper Center 2 Airport (FAA: Z93) | Copper Center, Alaska, United States |
| CZE | SVCR | José Leonardo Chirinos Airport | Santa Ana de Coro, Venezuela |
| CZF | PACZ | Cape Romanzof Long Range Radar Station | Cape Romanzof, Alaska, United States |
| CZH | | Corozal Airport | Corozal, Belize |
| CZJ | | Corazon de Jesus Airport | Corazon de Jesus, Panamá |
| CZK | KCZK | Cascade Locks State Airport | Cascade Locks, Oregon, United States |
| CZL | DABC | Mohamed Boudiaf International Airport | Constantine, Algeria |
| CZM | MMCZ | Cozumel International Airport | Cozumel, Quintana Roo, Mexico |
| CZN | | Chisana Airport | Chisana, Alaska, United States |
| CZO | | Chistochina Airport | Chistochina, Alaska, United States |
| CZP | | Cape Pole Seaplane Base (FAA: Z71) | Cape Pole, Alaska, United States |
| CZS | SBCZ | Cruzeiro do Sul International Airport | Cruzeiro do Sul, Acre, Brazil |
| CZT | KCZT | Dimmit County Airport | Carrizo Springs, Texas, United States |
| CZU | SKCZ | Las Brujas Airport | Corozal, Colombia |
| CZW | EPCH | Rudniki Airport | Czestochowa, Poland |
| CZX | ZSCG | Changzhou Benniu Airport | Changzhou, Jiangsu, China |
| CZY | YUNY | Cluny Airport | Cluny, Queensland, Australia |