- Lewis AirportIdent: 1OH9Serves: Peebles
- Lewis AirportIdent: 22IIServes: Mount Vernon
- Lewis AirportIdent: 7WI4Serves: Black River Falls
- Lewis AirportIdent: FL78Serves: Brandon
- Lewis AirportIdent: MS75Serves: Glen Allan
- Lewis AirstripIdent: 7NC7Serves: Walnut Cove
- Lewis and Clark AirstripIdent: 8ID8Serves: Salmon
- Lewis County Regional AirportIdent: K6M6Serves: Monticello
- Lewis FieldIdent: NY66Serves: Broadalbin
- Lewis FieldIdent: US-13007Serves: Ravenna
- Lewis Landing AirportIdent: NK79Serves: Slate Hill
- Lewis North AirportIdent: 62OKServes: Jay
- Lewis Private AirportIdent: 4TE2Serves: Del Rio
- Lewis Ranch AirportIdent: 2TX4Serves: Encinal
- Lewis Ranch AirportIdent: XA31Serves: Leakey
- Lewis University AirportIdent: KLOTServes: Chicago/Romeoville
- Lexington AirfieldIdent: TE75Serves: Lexington
- Lexington Municipal AirportIdent: K4K3Serves: Lexington
- Li Calzi AirportIdent: N50Serves: Bridgeton
- LI-Luframost Ranch AirportIdent: US-13047Serves: Hamilton
- Liannimal's LandingIdent: 56ISServes: Thomasboro
- Libby AirportIdent: KS59Serves: Libby
- Liberty County AirportIdent: K2J2Serves: Hinesville
- Liberty County AirportIdent: KLTYServes: Chester
- Liberty Hill Air Ranch AirportIdent: XS12Serves: Liberty Hill
- Liberty Hill International AirportIdent: TS29Serves: Eddy
- Liberty Landing AirportIdent: 4MO4Serves: Liberty
- Liberty Municipal AirportIdent: KT78Serves: Liberty
- Liberty-Casey County AirportIdent: KI53Serves: Liberty
- Lida Junction AirportIdent: 0L4Serves: Goldfield
- Lidgerwood Municipal AirportIdent: 4N4Serves: Lidgerwood
- Liechty Farm AirportIdent: 8NA5Serves: Montpelier
- Lierley Farms AirportIdent: 7NE5Serves: Paxton
- Lieving AirportIdent: WV71Serves: Letart
- Life Farm AirportIdent: 8MO1Serves: Springfield
- Light Plane Flyers AirfieldIdent: LS36Serves: Iowa
- Lightning Bolt Field AirportIdent: 04VTServes: Cabot
- Likely AirportIdent: 9CL3Serves: Likely
- Lilac Time AirportIdent: WI12Serves: Birchwood
- Lill StripIdent: NA75Serves: Bremen
- Lima Allen County AirportIdent: KAOHServes: Lima
- Lima Hana FieldIdent: US-4317Serves: Sunizona
- Limberlost Ranch AirportIdent: CA21Serves: Penn Valley
- Lime Village AirportIdent: 2AKServes: Lime Village
- Limington Harmon AirportIdent: K63BServes: Limington
- Limon Municipal AirportIdent: KLICServes: Limon
- Lincoln AirportIdent: KS69Serves: Lincoln
- Lincoln County AirportIdent: K1L1Serves: Panaca
- Lincoln Farm AirportIdent: 21KYServes: Hodgenville
- Lincoln Farms AirportIdent: 5PN8Serves: Calvin
- Lincoln Municipal AirportIdent: 0R2Serves: Lincoln
- Lincoln Municipal AirportIdent: K71Serves: Lincoln
- Lincoln Park AirportIdent: N07Serves: Lincoln Park
- Lincoln Regional AirportIdent: KLRGServes: Lincoln
- Lincoln Regional Karl Harder FieldIdent: KLHMServes: Lincoln
- Lincoln Station AirportIdent: NM25Serves: Corona
- Lincoln Village AirparkIdent: 89AKServes: Wasilla
- Lincolns FieldIdent: 12MTServes: Hingham
- Lincolnton Lincoln County Regional AirportIdent: KIPJServes: Lincolnton
- Linda's Roost AirportIdent: 2ID2Serves: Mackay