- Seminole Spraying Service AirportIdent: 39TEServes: Seminole
- Semper Fi LandingIdent: OL42Serves: Spiro
- Sency AirportIdent: 55PAServes: Treskow
- Seneca County AirportIdent: K16GServes: Tiffin
- Seneca Municipal AirportIdent: 62KServes: Seneca
- Sentiel AirportIdent: 79AZServes: Marana
- Sequim Valley AirportIdent: KW28Serves: Sequim
- Sequoia FieldIdent: KD86Serves: Visalia
- Sequoia Ranch AirportIdent: CA44Serves: Springville
- Serene FieldIdent: AZ31Serves: Maricopa
- Serenity Farm AirportIdent: 3VG3Serves: Burgess
- Settlers Bay AirstripIdent: 41AKServes: Wasilla
- Sevcik Farms AirportIdent: 2MY5Serves: Faribault
- Seven Bays AirportIdent: 73WAServes: Seven Bays
- Seven Cs Ranch AirportIdent: 0XA4Serves: Encinal
- Seven Devils AirportIdent: ID17Serves: Council
- Seven Feathers AirportIdent: 10FDServes: Dunnellon
- Seven Gables AirportIdent: 2VG7Serves: Orange
- Seven Gullies AirportIdent: 0NK3Serves: Groveland
- Seven Lakes AirportIdent: 62GAServes: Jackson
- Seven Rivers AirportIdent: 62NMServes: Carlsbad
- Seven Springs AirportIdent: 16TAServes: Balmorhea
- Severson AirportIdent: LL79Serves: Rockford
- Seward Municipal AirportIdent: KSWTServes: Seward
- Sexton AirportIdent: 19SCServes: Kinards
- Seymour Air ParkIdent: TN20Serves: Seymour
- Seymour Municipal AirportIdent: K60FServes: Seymour
- Shade Tree AirportIdent: GA73Serves: Concord
- Shade Tree FieldIdent: MS82Serves: Lyman
- Shady Acres AirportIdent: 3B8Serves: Spanaway
- Shady Bend AirportIdent: 9FL5Serves: Bell
- Shady Cove AirparkIdent: OG31Serves: Eagle Point
- Shady International AirportIdent: FA49Serves: Ocala
- Shady Lane Ranch AirportIdent: 88TTServes: Pilot Point
- Shafter Airport - Minter FieldIdent: KMITServes: Shafter
- Shageluk AirportIdent: PAHXServes: Shageluk
- Shakamak AirportIdent: IN08Serves: Jasonville
- Shaktoolik AirportIdent: PFSHServes: Shaktoolik
- Shalz FieldIdent: KCBKServes: Colby
- Shambo Ranch AirportIdent: SD41Serves: Lemmon
- Shamrock FieldIdent: 6G8Serves: Brooklyn
- Shangri-La AirportIdent: 0WN1Serves: Selah
- Shangrila AirportIdent: WS25Serves: Beecher
- Shaniko Cattle AirportIdent: OG54Serves: Shaniko
- Shaniko Ranch AirportIdent: 9OR1Serves: Shaniko
- Shannon AirportIdent: KEZFServes: Fredericksburg
- Shannon FieldIdent: 02CDServes: Clarksdale
- Shannon Flight StripIdent: 2GA8Serves: Shannon
- Sharar FieldIdent: 0IA4Serves: Mediapolis
- Sharon AirportIdent: K31Serves: Sharon Springs
- Sharp County Regional AirportIdent: KCVKServes: Ash Flat
- Sharp FieldIdent: 90LAServes: Minden
- Sharpe Farms AirportIdent: MO09Serves: Lewistown
- Sharpe's StripIdent: 2E2Serves: Emmett
- Sharretts AirportIdent: PN91Serves: Sabinsville
- Shaull Farm AirstripIdent: 48COServes: Nunn
- Shaw Crop Service AirportIdent: LA13Serves: Hammond
- Shaw Meadow AirportIdent: VT52Serves: Milton
- Shawano Municipal AirportIdent: KEZSServes: Shawano
- Shawn FieldIdent: AK47Serves: Wasilla