- Lokichogio AirportIdent: HKLKCountry: Kenya
- Lolland Falster Maribo AirportIdent: EKMBCountry: Denmark
- London Biggin Hill AirportIdent: EGKBCountry: United Kingdom
- London City AirportIdent: EGLCCountry: United Kingdom
- London International AirportIdent: CYXUCountry: Canada
- London Oxford AirportIdent: EGTKCountry: United Kingdom
- London Southend AirportIdent: EGMCCountry: United Kingdom
- London-Corbin Airport/Magee FieldIdent: KLOZCountry: United States
- Long Island MacArthur AirportIdent: KISPCountry: United States
- Longnan Chengzhou AirportIdent: ZLLNCountry: China
- Longreach AirportIdent: YLRECountry: Australia
- Longtian Air BaseIdent: CN-0158Country: China
- Lorient South Brittany (Bretagne Sud) AirportIdent: LFRHCountry: France
- Los Alamitos Army Air FieldIdent: KSLICountry: United States
- Los Chiles AirportIdent: MRLCCountry: Costa Rica
- Los Garzones AirportIdent: SKMRCountry: Colombia
- Lourdes-de-Blanc-Sablon AirportIdent: CYBXCountry: Canada
- Lubang AirportIdent: RPLUCountry: Philippines
- Lubango Mukanka International AirportIdent: FNUBCountry: Angola
- Lubbock Preston Smith International AirportIdent: KLBBCountry: United States
- Luderitz AirportIdent: FYLZCountry: Namibia
- Ludhiana AirportIdent: VILDCountry: India
- Luena AirportIdent: FNUECountry: Angola
- Lugano AirportIdent: LSZACountry: Switzerland
- Luke Air Force BaseIdent: KLUFCountry: United States
- Luliang Air BaseIdent: CN-0041Country: China
- Lumberton Regional AirportIdent: KLBTCountry: United States
- Lusaka City AirportIdent: FLLCCountry: Zambia
- Luxeuil-Saint-Sauveur (BA 116) Air BaseIdent: LFSXCountry: France
- Luyang Air BaseIdent: CN-0097Country: China
- Luzhou Yunlong AirportIdent: ZULZCountry: China
- Lyambir Air BaseIdent: RU-6558Country: Russia
- Lycksele AirportIdent: ESNLCountry: Sweden
- Lydd London Ashford AirportIdent: EGMDCountry: United Kingdom
- Lynchburg Regional Airport - Preston Glenn FieldIdent: KLYHCountry: United States
- Lynn Lake AirportIdent: CYYLCountry: Canada
- Lyon Bron AirportIdent: LFLYCountry: France
- Lázaro Cárdenas AirportIdent: MMLCCountry: Mexico
- Lübeck Blankensee AirportIdent: EDHLCountry: Germany
- Lüliang Dawu AirportIdent: ZBLLCountry: China
- M'Vengue El Hadj Omar Bongo Ondimba International AirportIdent: FOONCountry: Gabon
- Maa Mahamaya AirportIdent: IN-0393Country: India
- Maafaru International AirportIdent: VRDACountry: Maldives
- Macapá - Alberto Alcolumbre International AirportIdent: SBMQCountry: Brazil
- Macaé Benedito Lacerda AirportIdent: SBMECountry: Brazil
- MacDill Air Force BaseIdent: KMCFCountry: United States
- Mackay AirportIdent: YBMKCountry: Australia
- Mackenzie AirportIdent: CYZYCountry: Canada
- Madang AirportIdent: AYMDCountry: Papua New Guinea
- Madrid-Cuatro Vientos AirportIdent: LECUCountry: Spain
- Madrid–Torrejón Airport / Torrejón Air BaseIdent: LETOCountry: Spain
- Madurai AirportIdent: VOMDCountry: India
- Mae Hong Son AirportIdent: VTCHCountry: Thailand
- Mae Sot AirportIdent: VTPMCountry: Thailand
- Maestro Marinho Franco AirportIdent: SBRDCountry: Brazil
- Magadan-13 AirportIdent: UHMTCountry: Russia
- Magan AirportIdent: UEMMCountry: Russia
- Magas AirportIdent: URMSCountry: Russia
- Maharana Pratap AirportIdent: VAUDCountry: India
- Maharshi Valmiki International AirportIdent: IN-0025Country: India