- Aiken Regional AirportIdent: KAIKServes: Aiken
- Aileron Orchards AirportIdent: US-0820Serves: Dolan Springs
- Ainsworth AirportIdent: 06TEServes: Cleveland
- Ainsworth Regional AirportIdent: KANWServes: Ainsworth
- Air Acres AirportIdent: 5GA4Serves: Woodstock
- Air Castle AirportIdent: 52KYServes: Paris
- Air Cover AirportIdent: 67MUServes: Frankford
- Air Dusters Inc AirportIdent: 49COServes: Roggen
- Air Harbor AirportIdent: W88Serves: Greensboro
- Air Haven AirportIdent: 6PA6Serves: Moscow
- Air Jordan AirportIdent: 2OI2Serves: Waynesville
- Air Park FieldIdent: 0IN4Serves: New Haven
- Air Park South AirportIdent: 2K2Serves: Ozark
- Air Rahe AirportIdent: 4MI1Serves: Petersburg
- Air Sailing GliderportIdent: NV23Serves: Sparks
- Air Sprayers Number 2 AirportIdent: CO73Serves: Hartman
- Air Troy Estates Restricted AirportIdent: WI69Serves: East Troy
- Airbatco FieldIdent: 44MIServes: Mulliken
- Airborne Acres AirportIdent: 94TNServes: Campbellsville
- Aire Parque AirportIdent: 42MOServes: Festus
- Airhaven AirportIdent: 09NServes: Staatsburg
- Airkat AirparkIdent: 9AA9Serves: Haines
- Airlake AirportIdent: KLVNServes: Minneapolis
- Airlane Enterprises AirportIdent: 1H1Serves: Clay
- Airman Acres AirportIdent: OK93Serves: Collinsville
- Airnautique, Inc. AirportIdent: 0GA2Serves: Hartwell
- Airpark East AirportIdent: 1F7Serves: Dallas
- Airport Manatee AirportIdent: 48XServes: Palmetto
- Airscrew Performance Flightpark UltralightportIdent: AZ79Serves: Glendale
- Airway AirportIdent: 5AK3Serves: North Pole
- Airwolfe AirportIdent: 6WN5Serves: Stockholm
- Airy Hall AirportIdent: SC15Serves: Green Pond
- Airy-Acres AirportIdent: 6NY3Serves: Interlaken
- Aitkin Municipal Airport Steve Kurtz FieldIdent: KAITServes: Aitkin
- AJ Eisenberg AirportIdent: KOKHServes: Oak Harbor
- Ajax AirportIdent: OR46Serves: Condon
- Ak Chin Community AirfieldIdent: 41AZServes: Maricopa
- Ak Su AirportIdent: US-8998Serves: Canon City
- AK-10 AirstripIdent: AK10Serves: Willow
- Ak-Chin Regional AirportIdent: KA39Serves: Maricopa
- Akhiok AirportIdent: PAKHServes: Akhiok
- Akiachak AirportIdent: Z13Serves: Akiachak
- Akiak AirportIdent: PFAKServes: Akiak
- Akin AirportIdent: 54CNServes: Placerville
- Akin and Akin AirportIdent: NM73Serves: Mc Alister
- AKM AirfieldIdent: PN54Serves: Columbia Cross Roads
- Aknux AirportIdent: NE38Serves: Prosser
- Akutan AirportIdent: PAUTServes: Akutan
- Al Divine AirportIdent: 65CLServes: Caruthers
- Al's Airway AirportIdent: WS74Serves: Watertown
- Al's Due North AirportIdent: MY90Serves: North Branch
- Al's FieldIdent: 48VAServes: Gore
- Alakanuk AirportIdent: PAUKServes: Alakanuk
- Alamo Landing FieldIdent: L92Serves: Alamo
- Alan B. Janssen AirportIdent: 4LL9Serves: Morrisonville
- Alan's AirportIdent: SC07Serves: Orangeburg
- Alaska AirparkIdent: AK01Serves: Sterling
- Alaska View AirportIdent: AN03Serves: Skwentna
- Albany Municipal AirportIdent: KK19Serves: Albany
- Albany Municipal AirportIdent: KS12Serves: Albany