| IATA | ICAO | City | Region ^ | State | Country | STL | | St Louis | | MISSOURI | USA |
STX | | St Croix Island | | VIRGIN ISLANDS | USA |
SSB | | St Croix Island | | VIRGIN ISLANDS | USA |
SGF | | Springfield | | MISSOURI | USA |
SPI | | Springfield | | ILLINOIS | USA |
GEG | | Spokane | | WASHINGTON | USA |
SPW | | Spencer | | IOWA | USA |
SOP | | Southern Pines | | NORTH CAROLINA | USA |
TVL | | South lake Tahoe | | CALIFORNIA | USA |
SBN | | South Bend | | INDIANA | USA |
TZN | | South Andros | | Bahamas | USA |
SGY | | Skagway | | ALASKA | USA |
SIT | | Sitka | | ALASKA | USA |
FSD | | Sioux Falls | | SOUTH DAKOTA | USA |
SUX | | Sioux City | | IOWA | USA |
SDY | | Sidney | | MONTANA | USA |
SHV | | Shreveport | | LOUISIANA | USA |
SOW | | Show Low | | ARIZONA | USA |
SHR | | Sheridan | | WYOMING | USA |
SDX | | Sedona | | ARIZONA | USA |
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