- Lindauer AirportIdent: 83LLServes: New Athens
- Lindbergh AirportIdent: 08MEServes: Avon
- Lindbergh's LandingIdent: FA35Serves: Miami
- Lindell Loveless AirportIdent: LL45Serves: Gillespie
- Lindemann AirportIdent: ND35Serves: Lucca
- Linden Air AirportIdent: MO66Serves: Ozark
- Linden AirportIdent: KLDJServes: Linden
- Lindey's Landing AirportIdent: 5MN7Serves: Deerwood
- Lindrith AirparkIdent: E32Serves: Lindrith
- Lindsay AirportIdent: 0NC7Serves: Madison
- Lindsay AirportIdent: PN25Serves: Freeport
- Lindsay Municipal AirportIdent: K1K2Serves: Lindsay
- Lindvig AirstripIdent: 4NA0Serves: Williston
- Link FieldIdent: 63FDServes: Alachua
- Links AirportIdent: MD88Serves: Pylesville
- Lino Air ParkIdent: MY18Serves: Lino Lakes
- Linrud AirstripIdent: NA13Serves: Velva
- Linton Municipal AirportIdent: K7L2Serves: Linton
- Linwood AirportIdent: MS06Serves: Vaughan
- Lionwood AirportIdent: TT18Serves: Bellville
- Lisbon AirfieldIdent: 1OH8Serves: South Charleston
- Lisburg AirportIdent: 6ND3Serves: Argusville
- Litchfield Municipal AirportIdent: KLJFServes: Litchfield
- Litchfield Restricted Landing AreaIdent: 4IS7Serves: Seymour
- Little 'L' Ranch AirportIdent: TS61Serves: Glen Rose
- Little AirportIdent: US-12733Serves: Summerville
- Little B Farms AirportIdent: US-8378Serves: Perryton
- Little Britain AirportIdent: 79PAServes: Quarryville
- Little Buffalo Ranch AirportIdent: WY13Serves: Gillette
- Little Buttes Antique AirfieldIdent: 1CL1Serves: Lancaster
- Little Deer AirportIdent: 16FAServes: Ochopee
- Little Falls-Morrison County-Lindbergh fieldIdent: KLXLServes: Little Falls
- Little Goose Farm AirportIdent: VT76Serves: Lincoln
- Little Goose State AirportIdent: 16WServes: LaCrosse
- Little Mountain AirportIdent: 6NC1Serves: Denver
- Little Peach AirportIdent: TS92Serves: Temple
- Little Pecan Island AirportIdent: 3LA4Serves: Grand Chenier
- Little Plum Creek AirportIdent: 25WNServes: Pepin
- Little River AirportIdent: FL10Serves: Mc Alpin
- Little River AirportIdent: KLLRServes: Little River
- Little Susitna AirportIdent: 8AK6Serves: Susitna Station
- Little Texas AirportIdent: 27ALServes: Tuskegee
- Little Tobesofkee Creek Ranch AirportIdent: GA86Serves: Barnesville
- Little Weiser AirportIdent: 51IDServes: Little Valley
- Little Wheel FieldIdent: 59WIServes: Cottage Grove
- Littlebear AirportIdent: MT69Serves: Thompson Falls
- Littlefield Municipal AirportIdent: KLIUServes: Littlefield
- Littlefork Muni/Hanover AirportIdent: 13YServes: Littlefork
- Litzinger UltralightportIdent: IG04Serves: Milan
- Live Oak County AirportIdent: K8T6Serves: George West
- Live Oak Landing StripIdent: LA60Serves: Abbeville
- Live Oak Ranch AirportIdent: TA17Serves: Brenham
- Livengood Camp AirportIdent: 4AKServes: Livengood
- Livermore Municipal AirportIdent: KLVKServes: Livermore
- Livingston County Spencer J. Hardy AirportIdent: KOZWServes: Howell
- Livingston Municipal AirportIdent: K00RServes: Livingston
- Livingston Municipal AirportIdent: K8A3Serves: Livingston
- Lizzy Lizard AirportIdent: 8AZ5Serves: Portal
- Llama Ranch AirportIdent: 03NVServes: Ruby Valley
- Llano Municipal AirportIdent: KAQOServes: Llano