- Smith Farms AirportIdent: 0TA2Serves: Halfway
- Smith Farms AirportIdent: 23MSServes: Moss Point
- Smith Farms AirportIdent: MT76Serves: Great Falls
- Smith FieldIdent: 01TEServes: Forney
- Smith FieldIdent: 22OKServes: Springer
- Smith FieldIdent: 2GE3Serves: Greensboro
- Smith FieldIdent: 51GAServes: Tyrone
- Smith FieldIdent: 8NE3Serves: Champion
- Smith FieldIdent: 94KSServes: Macksville
- Smith FieldIdent: BUTLServes: Ward
- Smith FieldIdent: GE27Serves: Byron
- Smith FieldIdent: KSLGServes: Siloam Springs
- Smith FieldIdent: KSMDServes: Fort Wayne
- Smith FieldIdent: MD66Serves: Chestertown
- Smith Field AirportIdent: 2OH6Serves: Troy
- Smith Flying Service AirportIdent: TS14Serves: De Leon
- Smith I-Ranch AirportIdent: 14TEServes: Menard
- Smith Mountain Lake AirportIdent: KW91Serves: Moneta
- Smith Prairie AirportIdent: 2U0Serves: Prairie
- Smith Private AirportIdent: ND74Serves: Amenia
- Smith Ranch AirportIdent: ID21Serves: Hauser Lake
- Smith Restricted Landing AreaIdent: 4IS5Serves: Hecker
- Smith Restricted Landing AreaIdent: 61LLServes: Peirron
- Smith Restricted Landing AreaIdent: 6LL5Serves: New Berlin
- Smith StripIdent: 10NDServes: Halliday
- Smith's International AirportIdent: 99AServes: Sherrill
- Smith-Stewart FieldIdent: 79OHServes: Vienna
- Smither FieldIdent: TE81Serves: Denton
- Smithfield AirportIdent: MT65Serves: Lewistown
- Smithfield AirportIdent: NY91Serves: Peterboro
- Smiths Land Base AirportIdent: 53NYServes: Honeoye Falls
- Smithville Crawford Municipal AirportIdent: K84RServes: Smithville
- Smithville Municipal AirportIdent: K0A3Serves: Smithville
- Smitty's Landing AirportIdent: 1MU2Serves: Ridgely
- Smoke and Wings AirportIdent: 9NR0Serves: Hillsborough
- Smoketown AirportIdent: S37Serves: Smoketown
- Smokey Mountain Ranch AirportIdent: 09TXServes: Sheffield
- Smoky Bend Ranch AirportIdent: TA24Serves: Mullin
- Smyrna AirportIdent: 38NServes: Smyrna
- Snake Creek Wilderness AirportIdent: OK06Serves: Cookson
- Sneek AirportIdent: 2IL0Serves: Shannon
- Snell - North Laramie River AirportIdent: WY25Serves: Wheatland
- Snettisham AirportIdent: 7AK2Serves: Snettisham
- Snider Creek AirportIdent: OR06Serves: Medford
- Snider FieldIdent: 0IN1Serves: Decker
- Snook AirportIdent: PS06Serves: Beaver Springs
- Snouffer FieldIdent: US-5139Serves: Lynchburg
- Snow AirportIdent: MA36Serves: Ipswich
- Snow Crest Ranch AirportIdent: 0WI4Serves: Montello
- Snow Hill AirportIdent: VA19Serves: Charlottesville
- Snowden FieldIdent: US-4795Serves: Mason
- Snowshoe AirportIdent: 8WV3Serves: Mingo
- Snyder AirportIdent: 4O1Serves: Snyder
- Snyder Ranch AirportIdent: 5NE4Serves: Sutherland
- Soaring Club of Houston GliderportIdent: 89TAServes: Waller
- Soaring Horse AirportIdent: 33OIServes: Spencer
- Soaring Q Ranch AirportIdent: NR70Serves: Salisbury
- Sobolik AirportIdent: 98NDServes: Pisek
- Socatean Bay AirportIdent: 13MEServes: Rockwood
- Socorro Municipal AirportIdent: KONMServes: Socorro