- Starke County AirportIdent: KOXIServes: Knox
- Starns Brothers AirportIdent: 53NEServes: Ashland
- Starr AirportIdent: 4VA5Serves: Arrington
- Starr AirportIdent: MO94Serves: Trimble
- Starr Browning AirstripIdent: K8S0Serves: Browning
- Starshire Farm AirportIdent: 2KS9Serves: Topeka
- State Prison FieldIdent: FL28Serves: Raiford
- State Technical College of Missouri AirportIdent: K1H3Serves: Linn
- Statesboro Bulloch County AirportIdent: KTBRServes: Statesboro
- Statesville Regional AirportIdent: KSVHServes: Statesville
- Staton AirportIdent: 4LL1Serves: Steward
- Stava AirportIdent: 78NEServes: Brainard
- Steamboat Springs Bob Adams FieldIdent: KSBSServes: Steamboat Springs
- Stearmans Roost AirportIdent: 5OK3Serves: Vinita
- Stebbins AirportIdent: WBBServes: Stebbins
- Steciak StripIdent: 1OL2Serves: Harrah
- Steck Farm AirportIdent: NH78Serves: Pelham
- Steele Farms AirportIdent: US-4619Serves: Hollandale
- Steele Municipal AirportIdent: KM12Serves: Steele
- Steele's Bottom AirportIdent: 4KT4Serves: Warsaw
- Steen AirportIdent: TX20Serves: Anson
- Stefanik AirportIdent: PA36Serves: Bedminster
- Stehekin State AirportIdent: 6S9Serves: Stehekin
- Steil Restricted Landing Area AirportIdent: US-4865Serves: Tiskilwa
- Steinman AirportIdent: 53IIServes: Woodburn
- Stellar AirparkIdent: KP19Serves: Chandler
- Stennis International AirportIdent: KHSAServes: Bay St Louis
- Stephan Lake Lodge AirportIdent: AK61Serves: Talkeetna
- Stephen Municipal AirportIdent: D41Serves: Stephen
- Stephens County AirportIdent: KBKDServes: Breckenridge
- Stephens Ouachita County AirportIdent: K4F8Serves: Stephens
- Stephenville Clark Regional AirportIdent: KSEPServes: Stephenville
- Steppler FieldIdent: US-1094Serves: Culbertson
- Sterling Air ParkIdent: 40AKServes: Sterling
- Sterling AirportIdent: 10XAServes: Port Lavaca
- Sterling AirportIdent: 3B3Serves: Sterling
- Sterling Municipal AirportIdent: KSTKServes: Sterling
- Stettler StripIdent: II28Serves: Leo
- Stevens Farms AirportIdent: IN05Serves: Rushville
- Stevens FieldIdent: 7ME7Serves: Sebec
- Stevens FieldIdent: KPSOServes: Pagosa Springs
- Stevens Point Municipal AirportIdent: KSTEServes: Stevens Point
- Stevens StripIdent: 32LSServes: Ponchatoula
- Stevens Village AirportIdent: SVSServes: Stevens Village
- Stevens-Crosby AirportIdent: 08UServes: Elko
- Stevenson AirportIdent: K7A6Serves: Stevenson
- Stevenson Private AirportIdent: 6KS2Serves: Selden
- Stevensville AirportIdent: K32SServes: Stevensville
- Steward Restricted Landing AreaIdent: US-13061Serves: Durand
- Stewart AirportIdent: MD64Serves: McDaniel
- Stewart FieldIdent: 95INServes: Seymour
- Stewarts Green Acres AirportIdent: IN38Serves: North Liberty
- Stibnite AirportIdent: ID41Serves: Yellow Pine
- Stickle Cattle Farms AirportIdent: MO78Serves: Belle
- Stiehl AirportIdent: 5ND0Serves: Buford
- Stiffs AirparkIdent: 72XAServes: Beasley
- Stigler Regional AirportIdent: KF84Serves: Stigler
- Still Meadow Farm AirportIdent: 8PS2Serves: Jackson Center
- Stillwater AirportIdent: US-8313Serves: Whitefish
- Stillwater Creek AirportIdent: 04WNServes: Royal City