| IATA | ICAO | Airport name | Location |
|---|
| SAA | KSAA | Shively Field | Saratoga, Wyoming, United States |
| SAB | TNCS | Juancho E. Yrausquin Airport | Saba, Netherlands Antilles |
| SAC | KSAC | Sacramento Executive Airport | Sacramento, California, United States |
| SAD | KSAD | Safford Regional Airport | Safford, Arizona, United States |
| SAE | | Sangir Airport | Sangir, Indonesia |
| SAF | KSAF | Santa Fe Municipal Airport | Santa Fe, New Mexico, United States |
| SAG | | Sagwon Airport | Sagwon, Alaska, United States |
| SAH | OYSN | El Rahaba Airport (Sanaa International) | Sana'a, Yemen |
| SAI | | San Marino Airport | San Marino, Republic of San Marino |
| SAJ | | Sirajganj Airport | Sirajganj, Bangladesh |
| SAL | MSLP | Comalapa International Airport (El Salvador International) | San Salvador, El Salvador |
| SAN | KSAN | San Diego International Airport | San Diego, California, United States |
| SAO | | All Airports | São Paulo, Brazil |
| SAP | MHLM | La Mesa International Airport | San Pedro Sula, Honduras |
| SAR | KSAR | Sparta Community Airport (Hunter Field) | Sparta, Illinois, United States |
| SAS | KSAS | Salton Sea Airport | Salton City, California, United States |
| SAT | KSAT | San Antonio International Airport | San Antonio, Texas, United States |
| SAV | KSAV | Savannah/Hilton Head International Airport | Savannah, Georgia (near Hilton Head, South Carolina), United States |
| SAW | LTFJ | Sabiha Gokcen International Airport | Istanbul, Turkey |
| SAY | LIQS | Siena Airport | Siena, Italy |
| SAZ | GLST | Sasstown Airport | Sasstown, Liberia |
| SBA | KSBA | Santa Barbara Municipal Airport | Santa Barbara, California, United States |
| SBD | KSBD | San Bernardino International Airport | San Bernardino, California, United States |
| SBF | OADS | Sardeh Band Airport | Sardeh Band, Afghanistan |
| SBI | GUSB | Sambailo Airport | Koundara, Guinea |
| SBL | SLSA | Santa Ana del Yacuma Airport | Santa Ana del Yacuma, Bolivia |
| SBM | KSBM | Sheboygan County Memorial Airport | Sheboygan, Wisconsin, United States |
| SBN | KSBN | South Bend Regional Airport | South Bend, Indiana, United States |
| SBO | KSBO | Emanuel County Airport | Swainsboro, Georgia, United States |
| SBP | KSBP | San Luis Obispo County Regional Airport | San Luis Obispo, California, United States |
| SBS | KSBS | Steamboat Springs Airport (Bob Adams Field) | Steamboat Springs, Colorado, United States |
| SBU | KSBU | Blue Earth Municipal Airport | Blue Earth, Minnesota, United States |
| SBW | | Sibu Airport | Sibu, Malaysia |
| SBX | KSBX | Shelby Airport | Shelby, Montana, United States |
| SBY | KSBY | Salisbury-Ocean City Wicomico Regional Airport | Salisbury, Maryland, United States |
| SBZ | LRSB | Sibiu International Airport | Sibiu, Romania |
| SCB | KSCB | Scribner State Airport | Scribner, Nebraska, United States |
| SCC | PASC | Deadhorse Airport | Deadhorse, Alaska, United States |
| SCD | | Sulaco Airport | Sulaco, Honduras |
| SCE | KUNV | University Park Airport | State College, Pennsylvania, United States |
| SCF | KSDL | Scottsdale Airport | Scottsdale, Arizona, United States |
| SCH | KSCH | Schenectady County Airport | Schenectady, New York, United States |
| SCK | KSCK | Stockton Metropolitan Airport | Stockton, California, United States |
| SCL | SCEL | Arturo Merino Benitez International Airport | Santiago, Chile |
| SCM | | Scammon Bay Airport | Scammon Bay, Alaska, United States |
| SCN | EDDR | Saarbrücken Airport | Saarbrücken, Germany |
| SCO | UATE | Aktau Airport | Aktau, Kazakhstan |
| SCQ | LEST | Santiago de Compostela Airport | Santiago de Compostela, Spain |
| SCS | EPGM | Scatsta Airport | Sullom Voe, Shetland Islands, United Kingdom |
| SCU | MUCU | Antonio Maceo International Airport | Santiago, Cuba |
| SCV | LRSV | Suceava Airport | Suceava, Romania |
| SCX | KSCX | Salina Cruz Airport | Salina Cruz, Oaxaca, Mexico |
| SCY | SEST | San Cristóbal Airport | San Cristóbal Island, Galápagos Islands, Ecuador |
| SDA | ORBI | Baghdad International Airport (formerly ORBS/Saddam International) | Baghdad, Iraq |
| SDA | KSDA | Shenandoah Municipal Airport | Shenandoah, Iowa, United States |
| SDC | SCEL | Comodoro Arturo Merino Benítez International Airport | Santiago, Chile |
| SDD | FNUB | Lubango Airport | Lubango, Angola |
| SDE | SANE | Vicecomodoro Ángel de la Paz Aragonés Airport | Santiago del Estero, Argentina |
| SDF | KSDF | Louisville International Airport (Standiford Field) | Louisville, Kentucky, United States |
| SDJ | RJSS | Sendai Airport | Natori, Japan |
| SDK | WBKS | Sandakan Airport | Sandakan, Malaysia |
| SDL | ESNN | Sundsvall-Härnösand Airport (Midlanda Airport) | Sundsvall, Sweden |
| SDM | KSDM | Brown Field Municipal Airport | San Diego, California, United States |
| SDN | ENSD | Sandane Airport, Anda | Gloppen, Sogn og Fjordane, Norway |
| SDP | PASD | Sand Point Airport | Sand Point, Alaska, United States |
| SDQ | MDSD | Las Américas International Airport | Punta Caucedo (near Santo Domingo), Dominican Republic |
| SDR | LEXJ | Santander - Parayas Airport | Santander, Spain |
| SDU | SBRJ | Santos Dumont Airport | Rio de Janeiro, Brazil |
| SDV | LLSD | Sde Dov Airport | Tel Aviv, Israel |
| SDX | KSEZ | Sedona Airport | Sedona, Arizona, United States |
| SDY | KSDY | Sidney-Richland Municipal Airport | Sidney, Montana, United States |
| SEA | KSEA | Seattle-Tacoma International Airport | SeaTac (near Seattle and Tacoma), Washington, United States |
| SEE | KSEE | Gillespie Field | San Diego/El Cajon, California, United States |
| SEF | KSEF | Sebring Regional Airport | Sebring, Florida, United States |
| SEG | KSEG | Penn Valley Airport | Selinsgrove, Pennsylvania, United States |
| SEH | | Senggeh Airport | Senggeh, Indonesia |
| SEL | | All Airports | Seoul, South Korea |
| SEM | KSEM | Craig Field | Selma, Alabama, United States |
| SEP | KSEP | Clark Field Municipal Airport | Stephenville, Texas, United States |
| SEQ | KSEQ | Randolph AFB Aux. | Seguin, Texas, United States |
| SER | KSER | Freeman Municipal Airport | Seymour, Indiana, United States |
| SET | KSET | St. Charles County Smartt Airport | St. Charles, Missouri, United States |
| SEX | | Sembach Airport | Finsterwalde, Germany |
| SEY | GQNS | Sélibaby Airport | Sélibaby, Mauritania |
| SEZ | FSIA | Seychelles International Airport | Mahé, Seychelles |
| SFB | KSFB | Orlando Sanford International Airport | Sanford, Florida (near Orlando), United States |
| SFD | SVSR | Las Flecheras Airport | San Fernando de Apure, Venezuela |
| SFE | RPUS | San Fernando Airport | San Fernando City, La Union, Philippines |
| SFF | KSFF | Felts Field | Spokane, Washington, United States |
| SFJ | | Kangerlussuaq Airport | Kangerlussuaq, Greenland |
| SFL | GVSF | São Filipe Airport | Fogo, Cape Verde |
| SFM | KSFM | Sanford Regional Airport | Sanford, Maine, United States |
| SFO | KSFO | San Francisco International Airport | San Francisco, California, United States |
| SFQ | LTCH | Sanliurfa Airport | Sanliurfa, Turkey |
| SFQ | KSFQ | Suffolk Executive Airport | Suffolk, Virginia, United States |
| SFY | KSFY | Tri-Township Airport | Savanna, Illinois, United States |
| SFZ | KSFZ | North Central State Airport | Pawtucket, Rhode Island, United States |
| SGA | OASN | Sheghnan Airport | Sheghnan, Afghanistan |
| SGC | USRR | Surgut Airport | Surgut, Russia |
| SGD | EKSB | Sønderborg Airport | Sønderborg, Denmark |
| SGF | KSGF | Springfield-Branson National Airport | Springfield, Missouri, United States |
| SGH | KSGH | Springfield-Beckley Municipal Airport | Springfield, Ohio, United States |
| SGN | VVTS | Tan Son Nhat International Airport | Ho Chi Minh City, Vietnam |
| SGR | KSGR | Sugar Land Regional Airport | Sugar Land, Texas (near Houston), United States |
| SGS | KSGS | South St. Paul Municipal Airport (Richard E. Fleming Field) | South St. Paul, Minnesota, United States |
| SGT | KSGT | Stuttgart Municipal Airport | Stuttgart, Arkansas, United States |
| SGU | KSGU | St. George Municipal Airport | St. George, Utah, United States |
| SGY | PAGY | Skagway Airport | Skagway, Alaska, United States |
| SHA | ZSSS | Shanghai Hongqiao International Airport | Shanghai, China |
| SHD | KSHD | Shenandoah Valley Regional Airport | Staunton/Waynesboro/Harrisonburg, Virginia, United States |
| SHE | ZYTX | Shenyang Taoxian International Airport | Shenyang, China |
| SHG | PAHG | Shungnak Airport | Shungnak, Alaska, United States |
| SHH | PASH | Shishmaref Airport | Shishmaref, Alaska, United States |
| SHJ | OMSJ | Sharjah International Airport | Sharjah, United Arab Emirates |
| SHL | KSHL | Sheldon Municipal Airport | Sheldon, Iowa, United States |
| SHN | KSHN | Sanderson Field | Shelton, Washington, United States |
| SHO | RKND | Sokcho Airport | Sokcho, South Korea |
| SHR | KSHR | Sheridan County Airport | Sheridan, Wyoming, United States |
| SHV | KSHV | Shreveport Regional Airport | Shreveport, Louisiana, United States |
| SHX | PAHX | Shageluk Airport | Shageluk, Alaska, United States |
| SIC | LTCM | Sinop Airport | Sinop, Turkey |
| SID | GVAC | Amilcar Cabral International Airport | Sal Island, Cape Verde |
| SIG | TJIG | Fernando Luis Ribas Dominicci Airport | San Juan, Puerto Rico |
| SII | GMMF | Sania Ramel Airport | Sidi Ifni, Morocco |
| SIK | KSIK | Sikeston Memorial Municipal Airport | Sikeston, Missouri, United States |
| SIN | WSSS | Singapore Changi Airport | Changi, Singapore |
| SIO | YSMI | Smithton Airport | Smithton, Tasmania, Australia |
| SIR | LSGS | Sion Airport | Sion, Switzerland |
| SIT | PASI | Sitka Rocky Gutierrez Airport | Sitka, Alaska, United States |
| SIU | MNSI | Siuna Airport | Siuna, Nicaragua |
| SIV | KSIV | Sullivan County Airport | Sullivan, Indiana, United States |
| SIY | KSIY | Siskiyou County Airport | Montague, California, United States |
| SJC | KSJC | Norman Y. Mineta San José International Airport | San Jose, California, United States |
| SJD | MMSD | Los Cabos International Airport | Los Cabos, Mexico |
| SJE | SKSJ | Jorge Enrique González Airport | San José del Guaviare, Colombia |
| SJJ | LQSA | Sarajevo International Airport | Sarajevo, Bosnia and Herzegovina |
| SJK | SBSJ | São José dos Campos Regional Airport | São José dos Campos, Brazil |
| SJN | KSJN | St. Johns Industrial Air Park | St. Johns, Arizona, United States |
| SJO | MROC | Juan Santamaría International Airport | San José, Costa Rica |
| SJP | SBSR | Prof. Eribel Manoel Reino State Airport | São José do Rio Preto, Brazil |
| SJT | KSJT | San Angelo Regional Airport (Mathis Field) | San Angelo, Texas, United States |
| SJU | TJSJ | Luis Muñoz Marín International Airport | San Juan, Puerto Rico |
| SJX | KSJX | Beaver Island Airport | Beaver Island, Michigan, United States |
| SJX | | Sartaneja Airport | Sarteneja, Belize |
| SJY | EFSI | Seinäjoki Airport | Seinäjoki, Finland |
| SKA | KSKA | Fairchild Air Force Base | Spokane, Washington, United States |
| SKB | TKPK | Robert L. Bradshaw International Airport | Basseterre, Saint Kitts and Nevis |
| SKE | ENSN | Skien Airport, Geiteryggen | Skien, Telemark, Norway |
| SKF | KSKF | Lackland Air Force Base / Kelly Field Annex | San Antonio, Texas, United States |
| SKG | LGTS | Makedonia Airport | Thessaloniki, Greece |
| SKI | KSKI | Sac City Municipal Airport | Sac City, Iowa, United States |
| SKK | PFSH | Shaktoolik Airport (FAA: 2C7) | Shaktoolik, Alaska, United States |
| SKN | ENSK | Stokmarknes Airport, Skagen | Hadsel, Nordland, Norway |
| SKP | LWSK | Skopje Airport | Skopje, Macedonia |
| SKS | EKSP | Skrydstrup Airport | Vojens, Denmark |
| SKT | OPST | Sialkot International Airport | Sialkot, Pakistan |
| SKV | HESC | St. Catherine International Airport | St. Catherine, Egypt |
| SKW | PASW | Skwentna Airport | Skwentna, Alaska, United States |
| SKX | KSKX | Taos Regional Airport | Taos, New Mexico, United States |
| SKY | KSKY | Griffing Sandusky Airport | Sandusky, Ohio, United States |
| SKZ | OPSK | Sukkur Airport | Sukkur, Pakistan |
| SLA | SASA | Martín Miguel de Güemes International Airport | Salta, Salta Province, Argentina |
| SLB | KSLB | Storm Lake Municipal Airport | Storm Lake, Iowa, United States |
| SLC | KSLC | Salt Lake City International Airport | Salt Lake City, Utah, United States |
| SLE | KSLE | McNary Field | Salem, Oregon, United States |
| SLG | KSLG | Smith Field | Siloam Springs, Arkansas, United States |
| SLH | KSLH | Cheboygan County Airport | Cheboygan, Michigan, United States |
| SLI | KSLI | Los Alamitos Army Airfield | Los Alamitos, California, United States |
| SLJ | KSLJ | Hagler Army Airfield | Camp Shelby, Mississippi, United States |
| SLK | KSLK | Adirondack Regional Airport | Saranac Lake, New York, United States |
| SLL | OOSA | Salalah Airport | Salalah, Oman |
| SLM | LESA | Matacán Airport | Salamanca, Spain |
| SLN | KSLN | Salina Municipal Airport | Salina, Kansas, United States |
| SLO | KSLO | Salem-Leckrone Airport | Salem, Illinois, United States |
| SLP | MMSP | Ponciano Arriaga International Airport | San Luis Potosí, San Luis Potosí, México |
| SLQ | PASL | Sleetmute Airport | Sleetmute, Alaska, United States |
| SLR | KSLR | Sulphur Springs Municipal Airport | Sulphur Springs, Texas, United States |
| SLS | | Silistra Airport | Silistra, Bulgaria |
| SLT | | Harriet Alexander Field | Salida, Colorado, United States |
| SLU | TLPC | George F. L. Charles Airport | Castries, Saint Lucia |
| SLV | VISM | Shimla Airport | Simla, Himachal Pradesh, India |
| SLW | MMIO | Plan de Guadalupe International Airport | Saltillo, Mexico |
| SLZ | SBSL | Marechal Cunha Machado International Airport | São Luís, Brazil |
| SMA | LPAZ | Santa Maria Airport | Santa Maria, Portugal |
| SMD | KSMD | Smith Field | Fort Wayne, Indiana, United States |
| SME | KSME | Lake Cumberland Regional Airport (J.T. Wilson Field) | Somerset, Kentucky, United States |
| SMF | KSMF | Sacramento International Airport | Sacramento, California, United States |
| SMH | | Sapmanga Airport | Sapmanga, Papua New Guinea [1] |
| SMI | LGSM | Samos International Airport "Aristarchos of Samos" | Samos Island, Greece |
| SMK | | St. Michael Airport | St. Michael, Alaska, United States |
| SMM | WBKA | Semporna Airport | Sabah, Malaysia |
| SMN | KSMN | Lemhi County Airport | Salmon, Idaho, United States |
| SMO | KSMO | Santa Monica Municipal Airport | Santa Monica, California, United States |
| SMQ | WAOS | Sampit Airport | Sampit, Central Kalimantan (Borneo), Indonesia |
| SMR | SKSM | Simón Bolívar Airport | Santa Marta, Colombia |
| SMS | KSMS | Sumter Airport | Sumter, South Carolina, United States |
| SMU | PASP | Sheep Mountain Airport | Sheep Mountain, Alaska, United States |
| SMV | LSZS | St Moritz - Samedan Airport | Samedan and St. Moritz, Switzerland |
| SMX | KSMX | Santa Maria Public Airport (Capt. G. Allan Hancock Field) | Santa Maria, California, United States |
| SMY | GOTS | Simenti Airport | Simenti, Senegal |
| SMZ | SMST | Stoelmans Eiland Airport | Stoelmans Eiland, Suriname |
| SNA | KSNA | John Wayne Airport (Orange County Airport) | Santa Ana, California, United States |
| SNB | YSNB | Snake Bay Airport | Milikapiti, Melville Island, Northern Territory, Australia |
| SNC | SESA | General Ulpiano Paez Airport | Salinas, Ecuador |
| SNE | GVSN | Preguiça Airport | São Nicolau, Cape Verde |
| SNH | KSNH | Savannah-Hardin County Airport | Savannah, Tennessee, United States |
| SNI | GLGE | Greenville/Sinoe Airport | Greenville, Liberia |
| SNK | KSNK | Winston Field | Snyder, Texas, United States |
| SNL | KSNL | Shawnee Regional Airport | Shawnee, Oklahoma, United States |
| SNN | EINN | Shannon International Airport | Shannon (County Clare), Ireland |
| SNP | PASN | St. Paul Island Airport | St. Paul Island, Alaska, United States |
| SNS | KSNS | Salinas Municipal Airport | Salinas, California, United States |
| SNU | MUSC | Abel Santa María Airport | Santa Clara, Cuba, Cuba |
| SNY | KSNY | Sidney Municipal Airport (Lloyd W. Carr Field) | Sidney, Nebraska, United States |
| SOA | KSOA | Sonora Municipal Airport | Sonora, Texas, United States |
| SOB | LHSM | Sármellék International Airport | Sármellék, Hungary |
| SOF | LBSF | Sofia Airport | Sofia, Bulgaria |
| SOG | ENSG | Sogndal Airport, Haukåsen | Sogndal, Norway |
| SOJ | ENSR | Sørkjosen Airport | Sørkjosen, Norway |
| SOM | SVST | San Tomé Airport | San Tomé, Venezuela |
| SOP | KSOP | Moore County Airport | Pinehurst/Southern Pines, North Carolina, United States |
| SOU | EGHI | Southampton Airport | Eastleigh (near Southampton), England, United Kingdom |
| SOV | PASO | Seldovia Airport | Seldovia, Alaska, United States |
| SOW | KSOW | Show Low Regional Airport | Show Low, Arizona, United States |
| SOY | KSOY | Sioux Center Municipal Airport | Sioux Center, Iowa, United States |
| SPA | KSPA | Spartanburg Downtown Memorial Airport | Spartanburg, South Carolina, United States |
| SPB | | Charlotte Amalie Harbor Seaplane Base (St. Thomas Seaplane Base) | Charlotte Amalie, Saint Thomas, U.S. Virgin Islands |
| SPC | GCLA | La Palma Airport | La Palma, Canary Islands, Spain |
| SPD | VGSD | Saidpur Airport | Saidpur, Bangladesh |
| SPF | KSPF | Black Hills Airport (Clyde Ice Field) | Spearfish, South Dakota, United States |
| SPG | KSPG | Albert Whitted Airport | St. Petersburg, Florida, United States |
| SPH | KSPH | Springhill Airport | Springhill, Louisiana, United States |
| SPI | KSPI | Abraham Lincoln Capital Airport | Springfield, Illinois, United States |
| SPJ | LGSP | Sparti Airport | Sparti, Laconia, Greece |
| SPN | PGSN | Saipan International Airport | Saipan Island, Northern Mariana Islands |
| SPM | ETAD | Spangdahlem Air Base | Spangdahlem, Germany |
| SPR | | San Pedro Airport | San Pedro, Belize |
| SPS | KSPS | Sheppard AFB / Wichita Falls Municipal Airport | Wichita Falls, Texas, United States |
| SPU | LDSP | Split Airport | Split, Croatia |
| SPW | KSPW | Spencer Municipal Airport | Spencer, Iowa, United States |
| SPZ | | Silver Springs | Silver Springs, Nevada, United States |
| SQI | KSQI | Whiteside County Airport (Jos. H. Bittorf Field) | Sterling/Rock Falls, Illinois, United States |
| SQL | KSQL | San Carlos Airport | San Carlos, California, United States |
| SQQ | | Šiauliai International Airport | Šiauliai, Lithuania |
| SQW | EKSV | Skive Airport | Skive, Denmark |
| SRB | KSRB | Upper Cumberland Regional Airport | Sparta, Tennessee, United States |
| SRC | KSRC | Searcy Municipal Airport | Searcy, Arkansas, United States |
| SRE | SLSU | Juana Azurduy de Padilla International Airport | Sucre, Bolivia |
| SRE | KSRE | Seminole Municipal Airport | Seminole, Oklahoma, United States |
| SRG | WARS | Achmad Yani International Airport | Semarang, Indonesia |
| SRH | FTTA | Sarh Airport | Sarh, Chad |
| SRJ | SLSB | Capitán Germán Quiroga Guardia Airport | San Borja, Bolivia |
| SRP | ENSA | Stord Airport, Sørstokken | Stord, Hordaland, Norway |
| SRQ | KSRQ | Sarasota-Bradenton International Airport | Sarasota, Florida (near Bradenton), United States |
| SRR | KSRR | Sierra Blanca Regional Airport | Ruidoso, New Mexico, United States |
| SRT | HUSO | Soroti Airport | Soroti, Uganda |
| SRV | | Stony River 2 Airport | Stony River, Alaska, United States |
| SRY | OINZ | Dasht-e Naz Airport | Sari, Iran |
| SRZ | | El Trompillo | Santa Cruz de la Sierra, Bolivia |
| SSA | SBSV | Deputado Luís Eduardo Magalhães International Airport | Salvador, Bahia, Brazil |
| SSB | | Christiansted Harbor Seaplane Base (St. Croix Seaplane Base) | Christiansted, Saint Croix, U.S. Virgin Islands |
| SSC | KSSC | Shaw AFB | Sumter, South Carolina, United States |
| SSE | VASL | Solapur Airport | Sholapur (Solapur), India |
| SSF | KSSF | Stinson Municipal Airport | San Antonio, Texas, United States |
| SSG | FGSL | Malabo International Airport (Saint Isabel Airport) | Malabo, Equatorial Guinea |
| SSH | HESH | Sharm el-Sheikh International Airport | Sharm el-Sheikh, Egypt |
| SSI | KSSI | Malcolm McKinnon Airport | Brunswick, Georgia, United States |
| SSJ | ENST | Sandnessjøen Airport, Stokka | Sandnessjøen, Norway |
| SSN | RKSM | Seoul Airbase | Seongnam, South Korea |
| SSQ | KSSQ | Shell Lake Municipal Airport | Shell Lake, Wisconsin, United States |
| SSQ | | La Sarre Airport | La Sarre, Quebec, Canada |
| SSZ | SBST | Santos Air Base | Santos, Brazil |
| STA | EKVJ | Stauning Vestjylland Airport | Skjern, Denmark |
| STC | KSTC | St. Cloud Regional Airport | St. Cloud, Minnesota, United States |
| STD | SVSO | Mayor Buenaventura Vivas Airport | Santo Domingo (near San Cristóbal, Táchira), Venezuela |
| STE | KSTE | Stevens Point Municipal Airport | Stevens Point, Wisconsin, United States |
| STF | | Stephen Island Airport | Stephen Island, Queensland, Australia |
| STG | PAPB | St. George Airport (FAA: PBV) | St. George, Alaska, United States |
| STI | MDST | Cibao International Airport | Santiago, Dominican Republic |
| STJ | KSTJ | Rosecrans Memorial Airport | St. Joseph, Missouri, United States |
| STK | KSTK | Sterling Municipal Airport | Sterling, Colorado, United States |
| STL | KSTL | Lambert-Saint Louis International Airport | St. Louis, Missouri, United States |
| STN | EGSS | London Stansted Airport | Essex (near London), England, United Kingdom |
| STO | | All Airports | Stockholm, Sweden |
| STP | KSTP | St. Paul Downtown Airport (Holman Field) | St. Paul, Minnesota, United States |
| STQ | KOYM | St. Marys Municipal Airport | St. Marys, Pennsylvania, United States |
| STR | EDDS | Echterdingen Airport | Stuttgart, Germany |
| STS | KSTS | Charles M. Schulz Sonoma County Airport | Santa Rosa, California, United States |
| STT | TIST | Cyril E. King Airport | Charlotte Amalie, Saint Thomas, United States Virgin Islands |
| STW | URMT | Stavropol Shpakovskoye Airport | Stavropol, Russia |
| STX | TISX | Henry E. Rohlsen Airport | Christiansted, Saint Croix, United States Virgin Islands |
| SUA | KSUA | Witham Field | Stuart, Florida, United States |
| SUB | WARR | Juanda International Airport | Surabaya, Indonesia |
| SUD | KSUD | Stroud Municipal Airport | Stroud, Oklahoma, United States |
| SUE | KSUE | Door County Cherryland Airport | Sturgeon Bay, Wisconsin, United States |
| SUF | LICA | Lamezia Terme International Airport | Lamezia Terme, Italy |
| SUI | UGSS | Sukhumi Dranda Airport | Sukhumi, Georgia |
| SUJ | LRSM | Satu Mare International Airport | Satu Mare, Romania |
| SUN | KSUN | Friedman Memorial Airport | Hailey, Idaho, United States |
| SUO | | Sunriver Airport | Sunriver, Oregon, United States |
| SUS | KSUS | Spirit of St. Louis Airport | Chesterfield, Missouri, United States |
| SUT | KSUT | Brunswick County Airport | Oak Island, North Carolina, United States |
| SUU | KSUU | Travis AFB | Fairfield, California, United States |
| SUV | | Nausori International Airport | Nausori, Fiji |
| SUW | KSUW | Richard I. Bong Airport | Superior, Wisconsin, United States |
| SUX | KSUX | Sioux Gateway Airport (Colonel Bud Day Field) | Sioux City, Iowa, United States |
| SVA | PASA | Savoonga Airport | Savoonga, Alaska, United States |
| SVC | KSVC | Grant County Airport | Silver City, New Mexico, United States |
| SVD | TVSV | E.T. Joshua Airport | Arno Vale (near Kingstown), Saint Vincent |
| SVE | KSVE | Susanville Municipal Airport | Susanville, California, United States |
| SVF | DBBS | Savé Airport | Savé, Benin |
| SVG | ENZV | Stavanger Airport, Sola | Stavanger, Norway |
| SVH | KSVH | Statesville Regional Airport | Statesville, North Carolina, United States |
| SVJ | ENSH | Svolvær Airport, Helle | Svolvær, Norway |
| SVN | KSVN | Hunter AAF | Savannah, Georgia, United States |
| SVO | UUEE | Sheremetyevo International Airport | Moscow, Russia |
| SVQ | LEZL | San Pablo Airport | Seville, Spain |
| SVS | | Stevens Village Airport | Stevens Village, Alaska, United States |
| SVW | PASV | Sparrevohn LRRS | Sparrevohn, Alaska, United States |
| SVX | USSS | Koltsovo International Airport | Yekaterinburg, Russia |
| SVZ | SVSA | Juan Vicente Gómez International Airport | San Antonio del Táchira, Venezuela |
| SWD | PAWD | Seward Airport | Seward, Alaska, United States |
| SWF | KSWF | Stewart International Airport | Newburgh, New York, United States |
| SWI | KSWI | Sherman Municipal Airport | Sherman, Texas, United States |
| SWN | OPSW | Sahiwal Airport | Sahiwal, Pakistan |
| SWO | KSWO | Stillwater Regional Airport | Stillwater, Oklahoma, United States |
| SWS | EGFH | Swansea Airport | Swansea, United Kingdom |
| SWT | KSWT | Seward Municipal Airport | Seward, Nebraska, United States |
| SWW | KSWW | Avenger Field | Sweetwater, Texas, United States |
| SWY | WMBA | Sitiawan Airport | Perak, Malaysia |
| SXB | LFST | Strasbourg Entzheim International Airport | Strasbourg, France |
| SXF | EDDB | Berlin-Schönefeld International Airport | Berlin, Germany |
| SXL | EISG | Sligo Airport | Strandhill (near Sligo), Ireland |
| SXM | TNCM | Princess Juliana International Airport | Philipsburg, Sint Maarten, Netherlands Antilles |
| SXP | | Sheldon Point Airport | Sheldon Point, Alaska, United States |
| SXQ | PASX | Soldotna Airport | Soldotna, Alaska, United States |
| SXR | VISR | Sheikh Ul Alam International Airport | Srinagar, India |
| SXV | VOSM | Salem Airport | Salem, India |
| SXZ | LTCL | Siirt Airport | Siirt, Turkey |
| SYA | PASY | Eareckson AS | Shemya, Alaska, United States |
| SYD | YSSY | Sydney Airport | Mascot (near Sydney), Australia |
| SYF | KSYF | Cheyenne County Municipal Airport | St. Francis, Kansas, United States |
| SYI | KSYI | Shelbyville Municipal Airport (Bomar Field) | Shelbyville, Tennessee, United States |
| SYL | KSYL | Roberts Army Heliport | Camp Roberts, San Luis Obispo County, California, United States |
| SYN | KSYN | Stanton Airfield | Stanton, Minnesota, United States |
| SYP | MPSA | Ruben Cantu Airport | Santiago de Veraguas, Panama |
| SYQ | MRPV | Tobías Bolaños International Airport | San José, Costa Rica |
| SYR | KSYR | Syracuse Hancock International Airport | Mattydale (near Syracuse), New York, United States |
| SYV | KSYV | Sylvester Airport | Sylvester, Georgia, United States |
| SYX | ZJSY | Sanya Fenghuang International Airport | Hainan Island, China |
| SYY | EGPO | Stornoway Airport | Stornoway, Scotland, United Kingdom |
| SYZ | OISS | Shiraz International Airport | Shiraz, Iran |
| SZB | WMSA | Sultan Abdul Aziz Shah Airport | Subang (near Kuala Lumpur), Malaysia |
| SZD | EGSY | Sheffield City Airport | Sheffield, England |
| SZF | LTFH | Carsamba Airport | Samsun, Turkey |
| SZG | LOWS | Salzburg Airport | Salzburg, Austria |
| SZI | | Zaysan Airport | Zaysan, Kazakhstan |
| SZL | KSZL | Whiteman AFB | Knob Noster, Missouri, United States |
| SZN | KSZN | Santa Cruz Island Airport | Santa Barbara, California, United States |
| SZP | | Santa Paula Airport | Santa Paula, California, United States |
| SZQ | KSZP | Saenz Peña Airport | Santos Lugares, Buenos Aires, Argentina |
| SZR | LBSZ | Stara Zagora Airport | Stara Zagora, Bulgaria |
| SZS | | Ryans Creek Aerodrome | Stewart Island, New Zealand |
| SZT | KSZT | Sandpoint Airport | Sandpoint, Idaho, United States |
| SZV | | Suzhou Airport | Suzhou (near Shanghai), China |
| SZW | | Schwerin-Parchim Airport | Parchim, Germany |
| SZX | ZGSZ | Shenzhen - Baoan International Airport | Shenzhen, Guangdong, China,[2] |
| SZY | EPSY | Szczytno-Snationalrt | Szymany (near Szczytno), Poland |
| SZY | KSZY | Robert Sibley Airport | Selmer, Tennessee, United States |
| SZZ | ESPC | Szczecin-Goleniów "Solidarnosc" Airport | Goleniów (near Szczecin), Poland |