| IATA | ICAO | Airport name | Location |
|---|
| GAB | KGAB | Gabbs Airport | Gabbs, Nevada, United States |
| GAD | KGAD | Northeast Alabama Regional Airport | Gadsden, Alabama, United States |
| GAF | KGAF | Hutson Field | Grafton, North Dakota, United States |
| GAG | KGAG | Gage Airport | Gage, Oklahoma, United States |
| GAI | KGAI | Montgomery County Airpark | Gaithersburg, Maryland, United States |
| GAL | PAGA | Edward G. Pitka Sr. Airport | Galena, Alaska, United States |
| GAM | PAGM | Gambell Airport | Gambell, Alaska, United States |
| GAN | VRMG | Gan Island Airport | Gan Island, Seenu Atoll, Maldives |
| GAO | KGAO | South Lafourche Airport | Galliano, Louisiana, United States |
| GAQ | GAGO | Gao International Airport | Gao, Mali |
| GAS | KGAS | Gallia-Meigs Regional Airport | Gallipolis, Ohio, United States |
| GAU | VEGT | लोकप्रिय गोपीनाथ बारदोलोई अन्तरराष्ट्रीय विमानपत्तन | गुवाहाटी, भारत |
| GAY | VEGY | Gaya Airport | Gaya, India |
| GBD | KGBD | Great Bend Municipal Airport | Great Bend, Kansas, United States |
| GBE | FBSK | Sir Seretse Khama International Airport | Gaborone, Botswana |
| GBG | KGBG | Galesburg Municipal Airport | Galesburg, Illinois, United States |
| GBH | | Galbraith Lake Airport | Galbraith Lake, Alaska, United States |
| GBK | GFGK | Gbangbatok Airport | Gbangbatok, Sierra Leone |
| GBN | KGBN | Gila Bend AF Aux. Field | Gila Bend, Arizona, United States |
| GBO | | Baltimore Greenbelt | Greensboro, Maryland, United States |
| GBR | KGBR | Walter J. Koladza Airport | Great Barrington, Massachusetts, United States |
| GBZ | NZGB | Claris Airfield | Great Barrier Island, New Zealand |
| GCC | KGCC | Gillette-Campbell County Airport | Gillette, Wyoming, United States |
| GCI | EGJB | Guernsey Airport | Guernsey, United Kingdom |
| GCJ | FAGC | Grand Central Airport | Johannesburg, South Africa |
| GCK | KGCK | Garden City Regional Airport | Garden City, Kansas, United States |
| GCM | MWCR | Owen Roberts International Airport | Georgetown, Cayman Islands |
| GCN | KGCN | Grand Canyon National Park Airport | Tusayan, Arizona near Grand Canyon National Park |
| GCT | KGCT | Guthrie County Regional Airport | Guthrie Center, Iowa, United States |
| GCW | | Grand Canyon West Airport | Peach Springs, Mohave County, Arizona, United States |
| GCY | KGCY | Greeneville-Greene County Municipal Airport | Greeneville, Tennessee, United States |
| GDB | KGDB | Granite Falls Municipal Airport (Lenzen-Roe Memorial Field) | Granite Falls, Minnesota, United States |
| GDJ | KGDJ | Granbury Municipal Airport | Granbury, Texas, United States |
| GDL | MMGL | Don Miguel Hidalgo y Costilla International Airport | Guadalajara, Mexico |
| GDM | KGDM | Gardner Municipal Airport | Gardner, Massachusetts, United States |
| GDN | EPGD | Gdansk Lech Walesa Airport | Gdansk, Poland |
| GDO | SVGD | Guasdualito Airport | Guasdualito, Venezuela |
| GDV | KGDV | Dawson Community Airport | Glendive, Montana, United States |
| GDW | KGDW | Gladwin Zettel Memorial Airport | Gladwin, Michigan, United States |
| GDX | UHMM | Sokol Airport | Magadan, Russia |
| GDY | KGDY | Grundy Municipal Airport | Grundy, Virginia, United States |
| GEA | NWWM | Nouméa Magenta Airport | Nouméa, New Caledonia |
| GEC | | Lefkoniko/Geçitkale | Magosa, North Cyprus |
| GED | KGED | Sussex County Airport | Georgetown, Delaware, United States |
| GEG | KGEG | Spokane International Airport | Spokane, Washington, United States |
| GEO | KGEO | Brown County Airport | Georgetown, Ohio, United States |
| GEL | SBNM | Aeroporto Sepé Tiaraju | Santo Ângelo, Rio Grande do Sul, Brazil |
| GEO | SYCJ | Cheddi Jagan International Airport | Georgetown, Guyana |
| GEU | KGEU | Glendale Municipal Airport | Glendale, Arizona, United States |
| GEV | KGEV | Ashe County Airport | Jefferson, North Carolina, United States |
| GEX | YGLG | Geelong Airport | Grovedale, Victoria, Australia |
| GEY | KGEY | South Big Horn County Airport | Greybull, Wyoming, United States |
| GFD | KGFD | Pope Field | Greenfield, भारतna, United States |
| GFK | KGFK | Grand Forks International Airport | Grand Forks, North Dakota, United States |
| GFL | KGFL | Floyd Bennett Memorial Airport | Glens Falls, New York, United States |
| GFO | SYBT | Bartica Airport | Bartica, Guyana |
| GFZ | KGFZ | Greenfield Municipal Airport | Greenfield, Iowa, United States |
| GGE | KGGE | Georgetown County Airport | Georgetown, South Carolina, United States |
| GGF | KGGF | Grant Municipal Airport | Grant, Nebraska, United States |
| GGG | KGGG | East Texas Regional Airport | Longview, Texas, United States |
| GGI | KGGI | Grinnell Regional Airport | Grinnell, Iowa, United States |
| GGP | KGGP | Logansport/Cass County Airport | Logansport, भारतna, United States |
| GGS | SAWR | Gobernador Gregores Airport | Gobernador Gregores, Argentina |
| GGT | MYEG | George Town Airport | George Town, Great Exuma Island, Bahamas |
| GGV | | Kwigillingok Airport | Kwigillingok, Alaska, United States |
| GGW | KGGW | Glasgow Airport (Wokal Field) | Glasgow, Montana, United States |
| GHB | MYEM | Governor's Harbour Airport | Governor's Harbour, Bahamas |
| GHM | KGHM | Centerville Municipal Airport | Centerville, Tennessee, United States |
| GHW | KGHW | Glenwood Municipal Airport | Glenwood, Minnesota, United States |
| GIB | LXGB | Gibraltar Airport | Gibraltar |
| GIC | YBOI | Boigu Island Airport | Boigu Island, Queensland, Australia |
| GIF | KGIF | Winter Haven's Gilbert Airport | Winter Haven, Florida, United States |
| GIG | SBGL | Rio de Janeiro-Galeão International Airport | Rio de Janeiro, Brazil |
| GII | GUSI | Siguiri Airport | Siguiri, Guinea |
| GIS | NZGS | Gisborne Airport | Gisborne, New Zealand |
| GJL | DAAV | Jijel Ferhat Abbas Airport | Jijel, Algeria |
| GJT | KGJT | Walker Field | Grand Junction, Colorado, United States |
| GJU | MHNJ | Guanaja Airport | Guanaja, Bay Islands, Honduras |
| GKA | AYGA | Goroka Airport | Goroka, Papua New Guinea |
| GKE | ETNG | NATO Air Base Geilenkirchen | Geilenkirchen, Germany |
| GKJ | KGKJ | Port Meadville Airport | Meadville, Pennsylvania, United States |
| GKN | PAGK | Gulkana Airport | Gulkana, Alaska, United States |
| GKT | KGKT | Gatlinburg-Pigeon Forge Airport | Sevierville, Tennessee, United States |
| GKY | KGKY | Arlington Municipal Airport | Arlington, Texas, United States |
| GLA | EGPF | Glasgow International Airport | Glasgow, United Kingdom |
| GLD | KGLD | Goodland Municipal Airport (Renner Field) | Goodland, Kansas, United States |
| GLE | KGLE | Gainesville Municipal Airport | Gainesville, Texas, United States |
| GLF | MRGF | Golfito Airport | Golfito, Costa Rica |
| GLH | KGLH | Mid-Delta Regional Airport | Greenville, Mississippi, United States |
| GLK | HCMR | Galcaio Airport | Galcaio, Somalia |
| GLL | ENKL | Gol Airport, Klanten | Gol, Norway |
| GLO | EGBJ | Gloucester Airport | Gloucester, United Kingdom |
| GLR | KGLR | Gaylord Regional Airport | Gaylord, Michigan, United States |
| GLS | KGLS | Scholes International Airport at Galveston | Galveston, Texas, United States |
| GLT | YGLA | Gladstone Airport | Gladstone, Queensland, Australia |
| GLW | KGLW | Glasgow Municipal Airport | Glasgow, Kentucky, United States |
| GLY | KGLY | Clinton Memorial Airport | Clinton, Missouri, United States |
| GML | UKKM | Gostomel Airport | Kiev, Ukraine |
| GMP | RKSS | Gimpo International Airport | Seoul, South Korea (formerly SEL) |
| GMJ | KGMJ | Grove Municipal Airport | Grove, Oklahoma, United States |
| GMU | KGMU | Greenville Downtown Airport | Greenville, South Carolina, United States |
| GMZ | GCGM | La Gomera Airport | Alajeró, Spain |
| GNB | LFLS | Grenoble-Isère Airport | Grenoble, France |
| GNC | KGNC | Gaines County Airport | Seminole, Texas, United States |
| GNF | KGNF | Grenada Municipal Airport | Grenada, Mississippi, United States |
| GNG | KGNG | Gooding Municipal Airport | Gooding, Idaho, United States |
| GNO | TGPY | Point Saline International Airport | Grenada |
| GNT | KGNT | Grants-Milan Municipal Airport | Grants, New Mexico, United States |
| GNU | | Goodnews Airport | Goodnews, Alaska, United States |
| GNV | KGNV | Gainesville Regional Airport | Gainesville, Florida, United States |
| GNY | | Granby-Grand County Airport | Granby, Colorado, United States |
| GND | | Grenada Airport | Grenada, Caribe, Caribe |
| GOA | LIMJ | Aeroporto Cristoforo Colombo | Genoa, Italy |
| GOH | BGGH | Nuuk Airport | Nuuk, Greenland |
| GOI | VAGO | डैबोलिम हवाईअड्डा | गोआ, भारत |
| GOJ | UWGG | Strigino Airport | Nizhniy Novgorod, Russian Federation |
| GOK | KGOK | Guthrie Municipal Airport | Guthrie, Oklahoma, United States |
| GOL | | Gold Beach Municipal Airport | Gold Beach, Oregon, United States |
| GON | KGON | Groton-New London Airport | Groton, Connecticut, United States |
| GOP | VEGK | गोरखपुर हवाईअड्डा | गोरखपुर, भारत |
| GOT | ESGG | Gothenburg-Landvetter Airport | Gothenburg, Sweden |
| GOU | FKKR | Garoua International Airport | Garoua, Cameroon |
| GOV | KGOV | Grayling Army Airfield | Grayling, Michigan, United States |
| GOY | VCCG | Amparai Airport | Gal Oya, Sri Lanka |
| GOZ | LBGO | Gorna Oryahovitsa Airport | Gorna Oryahovitsa, Bulgaria |
| GPA | LGRX | Araxos Airport | Araxos, Greece |
| GPH | KGPH | Clay County Regional Airport | Mosby, Missouri, United States |
| GPI | SKGP | Guapi Airport | Guapi, Colombia |
| GPL | MRGP | Guápiles Airport | Guápiles, Costa Rica |
| GPM | KGPM | Grand Prairie Municipal Airport | Grand Prairie, Texas, United States |
| GPS | SEGS | Seymour Airport | Baltra Island, Galápagos Islands, Ecuador |
| GPT | KGPT | Gulfport-Biloxi International Airport | Gulfport, Mississippi, United States |
| GPZ | KGPZ | Grand Rapids/Itasca County Airport (Gordon Newstrom Field) | Grand Rapids, Minnesota, United States |
| GQQ | KGQQ | Galion Municipal Airport | Galion, Ohio, United States |
| GRB | KGRB | Austin Straubel International Airport | Green Bay, Wisconsin, United States |
| GRD | KGRD | Greenwood County Airport | Greenwood, South Carolina, United States |
| GRE | KGRE | Greenville Airport | Greenville, Illinois, United States |
| GRF | KGRF | Gray Army Airfield (Fort Lewis) | Tacoma, Washington, United States |
| GRI | KGRI | Central Nebraska Regional Airport | Grand Island, Nebraska, United States |
| GRJ | FAGG | George Airport | George, South Africa |
| GRK | KGRK | Killeen-Fort Hood Regional Airport (Fort Hood) | Killeen, Texas, United States |
| GRN | KGRN | Gordon Municipal Airport | Gordon, Nebraska, United States |
| GRO | LEGE | Girona-Costa Brava Airport | Girona, Spain |
| GRQ | EHGG | Groningen Airport Eelde | Eelde, Netherlands |
| GRR | KGRR | Gerald R. Ford International Airport | Grand Rapids, Michigan, United States |
| GRU | SBGR | São Paulo-Guarulhos International Airport | São Paulo, Brazil |
| GRX | LEGR | Granada Jaen Airport | Spain |
| GRZ | LOWG | Graz Airport | Graz, Austria |
| GSA | WBKN | Long Pasia Airport | Sabah, Malaysia |
| GSB | KGSB | Seymour Johnson AFB | Goldsboro, North Carolina, United States |
| GSE | ESGP | Gothenburg City Airport (formerly Säve Flygplats) | Gothenburg, Sweden |
| GSH | KGSH | Goshen Municipal Airport | Goshen, भारतna, United States |
| GSN | | Francisco C. Ada/Saipan International Airport | Saipan Island, Northern Mariana Islands, United States |
| GSO | KGSO | Piedmont Triad International Airport | Greensboro, North Carolina, United States, near High Point and Winston-Salem |
| GSP | KGSP | Greenville-Spartanburg International Airport | Greer, South Carolina, United States, near Greenville and Spartanburg |
| GSR | HCMG | Gardo Airport | Gardo, Somalia |
| GST | PAGS | Gustavus Airport | Gustavus, Alaska, United States |
| GSZ | | Granite Mountain AS | Granite Mountain, Alaska, United States |
| GTB | KGTB | Wheeler-Sack Army Airfield | Fort Drum, New York, United States |
| GTE | KGTE | Quinn Field | Gothenburg, Nebraska, United States |
| GTE | YGTE | Groote Eylandt | Groote Eylandt, Northern Territory, Australia |
| GTF | KGTF | Great Falls International Airport | Great Falls, Montana, United States |
| GTG | KGTG | Grantsburg Municipal Airport | Grantsburg, Wisconsin, United States |
| GTR | KGTR | Golden Triangle Regional Airport | Columbus/West Point/Starkville, Mississippi, United States |
| GTU | KGTU | Georgetown Municipal Airport | Georgetown, Texas, United States |
| GUA | MGGT | La Aurora International Airport | Guatemala City, Guatemala |
| GUB | MMGR | Guerrero Negro Airport | Guerrero Negro, Mexico |
| GUC | KGUC | Gunnison-Crested Butte Regional Airport | Gunnison, Colorado, United States |
| GUD | GAGM | Goundam Airport | Goundam, Mali |
| GUM | PGUM | Antonio B. Won Pat International Airport (Guam International Airport) | Tamuning, Guam (near Hagåtña), United States |
| GUP | KGUP | Gallup Municipal Airport | Gallup, New Mexico, United States |
| GUS | KGUS | Grissom ARB | Peru, भारतna, United States |
| GUW | UATG | Atyrau Airport | Atyrau, Kazakhstan |
| GUY | KGUY | Guymon Municipal Airport | Guymon, Oklahoma, United States |
| GVA | LSGG | Cointrin International Airport | Geneva, Switzerland |
| GVE | KGVE | Gordonsville Municipal Airport | Gordonsville, Virginia, United States |
| GVL | KGVL | Lee Gilmer Memorial Airport | Gainesville, Georgia, United States |
| GVQ | KGVQ | Genesee County Airport | Batavia, New York, United States |
| GVR | SNGV | Aeroporto Coronel Altino Machado | Governador Valadares, Minas Gerais, Brazil |
| GVT | KGVT | Majors Airport (Texas) | Greenville, Texas, United States |
| GWL | VIGR | ग्वालियर हवाईअड्डा | ग्वालियर, भारत |
| GWO | KGWO | Greenwood-Leflore Airport | Greenwood, Mississippi, United States |
| GWR | KGWR | Gwinner Airport (Roger Melroe Field) | Gwinner, North Dakota, United States |
| GWS | KGWS | Glenwood Springs Municipal Airport | Glenwood Springs, Colorado, United States |
| GWT | EDXW | Sylt Airport | Westerland, Germany |
| GWW | KGWW | Goldsboro-Wayne Municipal Airport | Goldsboro, North Carolina, United States |
| GWY | EICM | Galway Airport | Carnmore (near Galway), Ireland |
| GXY | KGXY | Greeley-Weld County Airport | Greeley, Colorado, United States |
| GXF | OYSY | Seiyun Airport | Seiyun, Yemen |
| GYA | SLGY | Guayaramerín Airport | Guayaramerín, Bolivia |
| GYB | KGYB | Giddings-Lee County Airport | Giddings, Texas, United States |
| GYD | UBBB | Heydar Aliyev International Airport | Baku, Azerbaijan |
| GYE | SEGU | José Joaquín de Olmedo International Airport | Santiago de Guayaquil, Ecuador |
| GYH | KGYH | Donaldson Center Airport | Greenville, South Carolina, United States |
| GYI | KGYI | Grayson County Airport | Sherman/Denison, Texas, United States |
| GYL | KGYL | Glencoe Municipal Airport | Glencoe, Minnesota, United States |
| GYM | MMGM | General José María Yáñez International Airport | Guaymas, Mexico |
| GYN | SBGO | Santa Genoveva Airport | Goiânia, Goiás, Brazil |
| GYR | KGYR | Phoenix Goodyear Airport | Goodyear, Arizona, United States |
| GYY | KGYY | Gary/Chicago International Airport | Gary, भारतna near Chicago, Illinois |
| GZH | KGZH | Middleton Field | Evergreen, Alabama, United States |
| GZS | KGZS | Abernathy Field | Pulaski, Tennessee, United States |
| GZT | LTAJ | Oguzeli Airport | Gaziantep, Turkey |
| GZM | LMMG | Xewkija Heliport | Gozo, Malta |