| LAA | Lamar Field Airport | Pueblo |  United States of America |
| LAB | Lablab Airport | Lae |  Papua New Guinea |
| LAC | Layang-Layang Airstrip Airport | Labuan |  Malaysia |
| LAD | 4 de Fevereiro Airport | Luanda |  Angola |
| LAE | Nadzab Airport | Lae | Papua New Guinea |
| LAF | Purdue University Airport | Indianapolis | United States of America |
| LAG | La Guaira Airport | Caracas |  Venezuela (Bolivarian Republic of) |
| LAH | Labuha Airport | Ternate |  Indonesia |
| LAI | Servel Airport | Lannion |  France |
| LAJ | Lages Airport | Lages |  Brazil |
| LAK | Aklavik Airport | Inuvik |  Canada |
| LAL | Lakeland Linder Regional Airport | Tampa | United States of America |
| LAM | Los Alamos Airport | Albuquerque | United States of America |
| LAN | Capital City Airport | Lansing | United States of America |
| LAO | Laoag International Airport | Laoag |  Philippines |
| LAP | General Manuel Marquez De Leon International Airpo | La Paz |  Mexico |
| LAQ | La Braq Airport | Beida |  Libya |
| LAR | General Brees Field Airport | Laramie | United States of America |
| LAS | McCarran International Airport | Las Vegas | United States of America |
| LAT | La Uribe Airport | Neiva |  Colombia |
| LAU | Lamu Airport | Malindi |  Kenya |
| LAV | Lalomalava | Apia |  Samoa |
| LAW | Lawton–Fort Sill Regional Airport | Lawton | United States of America |
| LAX | Los Angeles International Airport | Los Angeles | United States of America |
| LAY | Ladysmith Airport | Pietermaritzburg |  South Africa |
| LAZ | Bom Jesus Da Lapa Airport | Barreiras | Brazil |
| LBA | Leeds/bradford Airport | Leeds |  United Kingdom of Great Britain and Northern Ireland |
| LBB | Lubbock Preston Smith International Airport | Lubbock | United States of America |
| LBC | Lubeck Blankensee Airport | Hamburg |  Germany |
| LBD | Khudzhand Airport | Khujand |  Tajikistan |
| LBE | Westmoreland County Airport | Latrobe | United States of America |
| LBF | Lee Bird Field Airport | North Platte | United States of America |
| LBG | Le Bourget | Paris | France |
| LBH | Palm Beach Water Airport | Sydney |  Australia |
| LBI | Le Sequestre Airport | Castres | France |
| LBJ | Komodo Airport | Labuan Bajo | Indonesia |
| LBK | Liboi Airport | Wajir | Kenya |
| LBL | Liberal Mid-America Regional Airport | Liberal | United States of America |
| LBM | Luabo Airport | Quelimane |  Mozambique |
| LBN | Lake Baringo Airport | Eldoret | Kenya |
| LBO | Lusambo Airport | Kisangani |  Congo (Democratic Republic of the) |
| LBP | Long Banga Airfield Airport | Bario | Malaysia |
| LBQ | Lambarene Airport | Libreville |  Gabon |
| LBR | Labrea Airport | Porto Velho | Brazil |
| LBS | Labasa Airport | Labasa |  Fiji |
| LBT | Lumberton Municipal Airport | Fayetteville | United States of America |
| LBU | Labuan Airport | Labuan | Malaysia |
| LBV | Libreville Airport | Libreville | Gabon |
| LBW | Long Bawan Airport | Tarakan | Indonesia |
| LBX | Lubang Airport | Manila | Philippines |
| LBY | La Baule-Escoublac Airport | Saint Nazaire | France |
| LBZ | Lukapa Airport | Luanda | Angola |
| LCA | Larnaca Airport | Larnaca |  Cyprus |
| LCB | Pontes e Lacerda Airport | Vilhena | Brazil |
| LCC | Galatina Airport | Brindisi |  Italy |
| LCD | Louis Trichardt Airport | Polokwane | South Africa |
| LCE | Goloson International Airport | La Ceiba |  Honduras |
| LCF | Rio Dulce Airport (Las Vegas Airport) | Flores |  Guatemala |
| LCG | La Coruna Airport | La Coruna |  Spain |
| LCH | Lake Charles Regional Airport | Lake Charles | United States of America |
| LCI | Laconia Municipal Airport | Manchester | United States of America |
| LCJ | Lodz Lublinek Airport | Lodz |  Poland |
| LCK | Rickenbacker | Columbus | United States of America |
| LCL | La Coloma Airport | Nueva Gerona |  Cuba |
| LCM | La Cumbre Airport | Cordoba |  Argentina |
| LCN | Balcanoona Airport | Olympic Dam | Australia |
| LCO | Lague Airport | Brazzaville |  Congo |
| LCP | Loncopue Airport | San Martin De Los Andes | Argentina |
| LCR | La Chorrera Airport | Leticia | Colombia |
| LCS | Las Canas Airport | Liberia |  Costa Rica |
| LCV | Lucca Airport | Pisa | Italy |
| LCX | Longyan Guanzhishan Airport | Longyan |  China |
| LCY | London City Airport | London | United Kingdom of Great Britain and Northern Ireland |
| LDA | Malda Airport | Bagdogra |  India |
| LDB | Londrina Airport | Londrina | Brazil |
| LDC | Lindeman Island Airport | Hamilton Island | Australia |
| LDE | Tarbes Ossun Lourdes Airport | Lourdes | France |
| LDG | Leshukonskoye Airport | Kotlas |  Russian Federation |
| LDH | Lord Howe Island Airport | Lord Howe Island | Australia |
| LDI | Kikwetu Airport | Mtwara |  Tanzania |
| LDJ | Linden Airport | Morristown | United States of America |
| LDK | Hovby Airport | Trollhattan |  Sweden |
| LDM | Mason County Airport | Manistee | United States of America |
| LDN | Lamidanda Airport | Tumling Tar |  Nepal |
| LDO | Laduani Airstrip | Paramaribo |  Suriname |
| LDR | Lodar Airport | Sana'a |  Yemen |
| LDU | Lahad Datu Airport | Lahad Datu | Malaysia |
| LDV | Landivisiau Airport | Brest | France |
| LDW | Lansdowne Airport | Kununurra | Australia |
| LDX | St-Laurent du Maroni Airport | Cayenne |  French Guiana |
| LDY | Eglinton (City of Derry) Airport | Derry | United Kingdom of Great Britain and Northern Ireland |
| LDZ | Londolozi Airport | Londolozi | South Africa |
| LEA | Learmonth Airport | Learmonth | Australia |
| LEB | Lebanon Municipal Airport | Lebanon | United States of America |
| LEC | Coronel Horacio de Mattos Airport | Lencois | Brazil |
| LED | Pulkovo Airport | Saint Petersburg | Russian Federation |
| LEE | Leesburg Airport | Orlando | United States of America |
| LEF | Lebakeng Airport | Maseru |  Lesotho |
| LEG | Aleg Airport | Nouakchott |  Mauritania |
| LEH | Octeville Airport | Deauville | France |
| LEI | Almeria Airport | Almeria | Spain |
| LEJ | Leipzig/Halle Airport | Leipzig/Halle | Germany |
| LEK | Labe Airport | Conakry |  Guinea |
| LEL | Lake Evella Airport | Elcho Island | Australia |
| LEM | Lemmon Airport | Dickinson | United States of America |
| LEN | Leon Airport | Leon | Spain |
| LEO | Leconi Airport | Libreville | Gabon |
| LEP | Leopoldina Airport | Juiz de Fora | Brazil |
| LEQ | Lands End Airport | Penzance | United Kingdom of Great Britain and Northern Ireland |
| LER | Leinster Airport | Kalgoorlie | Australia |
| LES | Lesobeng Airport | Maseru | Lesotho |
| LET | Gen. A.V. Cobo Airport | Leticia | Colombia |
| LEV | Levuka Airfield Airport | Suva | Fiji |
| LEW | Auburn/Lewiston Municipal Airport | Portland | United States of America |
| LEX | Blue Grass Airport | Lexington | United States of America |
| LEY | Lelystad Airport | Hilversum |  Netherlands |
| LEZ | La Esperanza Airport | Tegucigalpa | Honduras |
| LFB | Lumbo | Nampula | Mozambique |
| LFI | Langley AFB | Newport News | United States of America |
| LFK | Lufkin Angelina County Airport | Longview | United States of America |
| LFM | Lamerd Airport | Lamerd |  Iran (Islamic Republic of) |
| LFN | Triangle North Executive Airport (Franklin County | Raleigh/Durham | United States of America |
| LFO | Kelafo Airport | Gode/Iddidole |  Ethiopia |
| LFP | Lakefield Airport | Cooktown | Australia |
| LFR | La Fria Airport | La Fria | Venezuela (Bolivarian Republic of) |
| LFT | Lafayette Regional Airport | Lafayette | United States of America |
| LFW | Lome Airport | Lome |  Togo |
| LGA | LaGuardia Airport | New York | United States of America |
| LGB | Long Beach Airport | Long Beach | United States of America |
| LGC | Calloway Airport | Columbus | United States of America |
| LGD | La Grande Airport | Walla Walla | United States of America |
| LGE | Lake Gregory Airport | Olympic Dam | Australia |
| LGF | Laguna AAF | Yuma | United States of America |
| LGG | Liege Airport | Liege |  Belgium |
| LGH | Leigh Creek Airport | Olympic Dam | Australia |
| LGI | Deadmans Cay Airport | Deadmans Cay | Australia |
| LGK | Langakawi International Airport | Langkawi | Malaysia |
| LGL | Long Lellang Airport | Bario | Malaysia |
| LGM | Laiagam Airport | Wapenamanda | Papua New Guinea |
| LGN | Linga Linga Airport | Hoskins | Papua New Guinea |
| LGO | Langeoog Airport | Westerland | Germany |
| LGP | Legazpi Airport | Legaspi | Philippines |
| LGQ | Lago Agrio Airport | Lago Agrio |  Ecuador |
| LGR | Cochrane Airport | Balmaceda |  Chile |
| LGS | Malargue Airport | San Rafael | Argentina |
| LGT | Las Gaviotas Airport | El Yopal | Colombia |
| LGU | Logan-Cache Airport | Salt Lake City | United States of America |
| LGW | Gatwick Airport | London | United Kingdom of Great Britain and Northern Ireland |
| LGX | Lugh Ganane Airport | Mogadishu |  Somalia |
| LGY | Lagunillas Airport | Maracaibo | Venezuela (Bolivarian Republic of) |
| LGZ | Leguizamo Airport | Puerto Asis | Colombia |
| LHA | Black Forest Airport | Karlsruhe/Baden Baden | Germany |
| LHB | Lost Harbor Sea Port Airport | Dutch Harbor | United States of America |
| LHE | Alama Iqbal International Airport | Lahore |  Pakistan |
| LHG | Lightning Ridge Airport | Moree | Australia |
| LHI | Lereh Airport | Jayapura | Indonesia |
| LHK | Guanghua Airport | Xiangyang | China |
| LHM | Lincoln Regional Airport | Sacramento | United States of America |
| LHN | Lishan Airport | Hualien |  Taiwan, Province of China |
| LHP | Lehu Airport | Rabaul | Papua New Guinea |
| LHR | Heathrow Airport | London | United Kingdom of Great Britain and Northern Ireland |
| LHS | Las Heras Airport | Comodoro Rivadavia | Argentina |
| LHU | Lianshulu Airport | Windhoek |  Namibia |
| LHV | W T Piper Memorial Airport | Williamsport | United States of America |
| LHW | Lanzhou Airport | Lanzhou | China |
| LIA | Liangping Airport | Dazhou | China |
| LIB | Limbunya Airport | Kununurra | Australia |
| LIC | Limon Municipal Airport | Colorado Springs | United States of America |
| LID | Valkenburg | Rotterdam | Netherlands |
| LIE | Libenge Airport | Kisangani | Congo (Democratic Republic of the) |
| LIF | Lifou Airport | Lifou |  New Caledonia |
| LIG | Bellegarde Airport | Limoges | France |
| LIH | Lihue Airport | Kauai Island | United States of America |
| LII | Mulia Airport | Wamena | Indonesia |
| LIK | Likiep Island Airport | Kwajalein |  Marshall Islands |
| LIL | Lesquin Airport | Lille | France |
| LIM | Jorge Chavez International Airport | Lima | United States of America |
| LIN | Linate | Milan | Italy |
| LIO | Limon International Airport | Limon | United States of America |
| LIP | Lins Airport | Marilia | Brazil |
| LIQ | Lisala Airport | Kisangani | Congo (Democratic Republic of the) |
| LIR | Daniel Oduber International Airport | Liberia | Costa Rica |
| LIS | Lisbon Portela Airport | Lisbon |  Portugal |
| LIT | Adams Field Airport | Little Rock | United States of America |
| LIV | Livengood Airport | Fairbanks | United States of America |
| LIW | Loikaw Airport | Loikaw |  Myanmar |
| LIX | Likoma Airport | Lilongwe |  Malawi |
| LIY | MidCoast Regional Airport at Wright Army Airfield | Savannah | United States of America |
| LIZ | Loring AFB | Presque Isle | United States of America |
| LJA | Lodja Airport | Kisangani | Congo (Democratic Republic of the) |
| LJG | Lijiang Sanyi Airport | Lijiang | China |
| LJN | Brazoria County Airport | Houston | United States of America |
| LJU | Brnik Airport | Ljubljana |  Slovenia |
| LKA | Larantuka Airport | Larantuka | Indonesia |
| LKB | Lakeba Airport | Lakeba | Fiji |
| LKC | Lekana Airport | Brazzaville | Congo |
| LKD | Lakeland Downs Airport | Cooktown | Australia |
| LKE | Kenmore Air Harbor SPB | Seattle | United States of America |
| LKG | Lokichoggio Airport | Lodwar | Kenya |
| LKH | Long Akah | Mulu | Malaysia |
| LKK | Kulik Lake Airport | Kokhanok | United States of America |
| LKL | Banak Airport | Lakselv |  Norway |
| LKN | Leknes Airport | Leknes | Norway |
| LKO | Amausi Airport | Lucknow | India |
| LKP | Lake Placid Airport | Saranac Lake | United States of America |
| LKR | Las Khoreh Airport | Hargeisa | Somalia |
| LKS | Lakeside Airport | North Bend | United States of America |
| LKT | Lakota Airport | Abidjan |  Cote d'Ivoire |
| LKU | Lake Turkana Airport | Lodwar | Kenya |
| LKV | Lake County Airport | Klamath Falls | United States of America |
| LKY | Lake Manyara Airport | Lake Manyara | Tanzania |
| LKZ | RAF Lakenheath | Cambridge | United Kingdom of Great Britain and Northern Ireland |
| LLA | Kallax Airport | Lulea | Sweden |
| LLE | Malelane Airport | Skukuza | South Africa |
| LLF | LingLing | Yongzhou | China |
| LLG | Chillagoe Airport | Cairns | Australia |
| LLH | Las Limas Airport | San Pedro Sula | Honduras |
| LLI | Lalibela Airport | Lalibela | Ethiopia |
| LLK | Lankaran Airport | Lankaran |  Azerbaijan |
| LLL | Lissadell Airport | Kununurra | Australia |
| LLM | Long Lama Airport | Marudi | Malaysia |
| LLN | Kelila Airport | Wamena | Indonesia |
| LLP | Linda Downs Airport | Mount Isa | Australia |
| LLS | Las Lomitas Airport | Formosa | Argentina |
| LLU | Alluitsup Paa Airport | Qaqortoq |  Greenland |
| LLW | Kumuzu International Airport | Lilongwe | Malawi |
| LLX | Lyndonville Airport | Lebanon | United States of America |
| LLY | Burlington County Airport | Wrightstown | United States of America |
| LMA | Lake Minchumina Airport | Hughes | United States of America |
| LMB | Salima Airport | Lilongwe | Malawi |
| LMC | La Macarena Airport | Neiva | Colombia |
| LMD | Los Menucos Airport | Neuquen | Argentina |
| LME | Arnage Airport | Le Mans | France |
| LMG | Lamassa Airport | Rabaul | Papua New Guinea |
| LMH | Limon Airport | Roatan | Honduras |
| LMI | Lumi Airport | Vanimo | Papua New Guinea |
| LML | Lae Island Airport | Kwajalein | Marshall Islands |
| LMM | Federal (Valle Del Fuerte) Airport | Los Mochis | Mexico |
| LMN | Limbang Airport | Limbang | Malaysia |
| LMO | RAF Lossiemouth | Wick | United Kingdom of Great Britain and Northern Ireland |
| LMP | Lampedusa Airport | Lampedusa | Italy |
| LMQ | Marsa Brega Airport | Beida | Libya |
| LMR | Lime Acres Airport | Sishen | South Africa |
| LMS | Winston County Airport | Columbus | United States of America |
| LMT | Kingsley Field Airport | Klamath Falls | United States of America |
| LMX | Lopez De Micay Airport | Guapi | Colombia |
| LMY | Lake Murray Airport | Tabubil | Papua New Guinea |
| LMZ | Palma Airport | Pemba | Mozambique |
| LNA | Palm Beach County Park Airport | West Palm Beach | United States of America |
| LNB | Lamen Bay Airport | Norsup |  Vanuatu |
| LNC | Lengbati Airport | Lae | Papua New Guinea |
| LND | Hunt Field Airport | Riverton | United States of America |
| LNE | Lonorore Airport | Norsup | Vanuatu |
| LNF | Munbil Airport | Tabubil | Papua New Guinea |
| LNG | Lese Airport | Port Moresby | Papua New Guinea |
| LNH | Lake Nash Airport | Mount Isa | Australia |
| LNI | Dew Station | Nuiqsut | United States of America |
| LNJ | Lincang Airport | Lincang | China |
| LNK | Lincoln Airport | Lincoln | United States of America |
| LNM | Langimar Airport | Lae | Papua New Guinea |
| LNN | Lost Nation Airport | Cleveland | United States of America |
| LNO | Leonora Airport | Kalgoorlie | Australia |
| LNP | Lonesome Pine Airport | Bristol, VA/Johnson City/Kingsport | United States of America |
| LNQ | Loani Airport | Alotau | Papua New Guinea |
| LNR | Tri County Airport | Madison | United States of America |
| LNS | Lancaster Airport | Lancaster | United States of America |
| LNV | Lihir Island Airport | Rabaul | Papua New Guinea |
| LNX | Smolensk Airport | Bryansk | Russian Federation |
| LNY | Lanai City Airport | Lanai | United States of America |
| LNZ | Blue Danube Airport | Linz |  Austria |
| LOA | Lorraine Airport | Doomadgee | Australia |
| LOB | Los Andes Airport | Santiago | Chile |
| LOC | Lock Airport | Port Lincoln | Australia |
| LOD | Longana Airport | Espiritu Santo | Vanuatu |
| LOE | Loei Airport | Loei |  Thailand |
| LOF | Loen Airport | Kwajalein | Marshall Islands |
| LOG | Longview Airport | Portland | United States of America |
| LOH | Camilo Ponce Enriquez Airport | Loja | Ecuador |
| LOI | Helmuth Baungartem Airport | Navegantes | Brazil |
| LOK | Lodwar Airport | Lodwar | Kenya |
| LOL | Derby Field Airport | Reno | United States of America |
| LOM | Francisco Primo de Verdad National Airport | Leon/Guanajuato | Mexico |
| LOP | Lombok International Airport | Praya | Indonesia |
| LOQ | Lobatse Airport | Gaborone |  Botswana |
| LOS | Murtala Muhammed Airport | Lagos |  Nigeria |
| LOT | Lewis Lockport Airport | Chicago | United States of America |
| LOU | Bowman Field Airport | Louisville | United States of America |
| LOV | Monclova Airport | Saltillo | Mexico |
| LOW | Louisa Airport | Charlottesville | United States of America |
| LOX | Los Tablones Airport | Guatemala City | Guatemala |
| LOY | Loyangalani Airport | Lodwar | Kenya |
| LOZ | Corbin-london Airport | Lexington | United Kingdom of Great Britain and Northern Ireland |
| LPA | Gran Canaria Airport | Las Palmas | Spain |
| LPB | El Alto Airport | La Paz | Mexico |
| LPC | Lompoc Airport | Santa Maria | United States of America |
| LPD | La Pedrera Airport | Leticia | Colombia |
| LPE | La Primavera Airport | Arauca | Colombia |
| LPG | La Plata Airport | Buenos Aires | Argentina |
| LPI | Linkoping Airport | Linkoping | Sweden |
| LPJ | Pijiguaos Airport | Valencia | Venezuela (Bolivarian Republic of) |
| LPK | Lipetsk Airport | Lipetsk | Russian Federation |
| LPL | Liverpool John Lennon Airport | Liverpool | United Kingdom of Great Britain and Northern Ireland |
| LPM | Lamap Airport | Norsup | Vanuatu |
| LPN | Leron Plains Airport | Lae | Papua New Guinea |
| LPO | La Porte Municipal Airport | South Bend | United States of America |
| LPP | Lappeenranta Airport | Savonlinna |  Finland |
| LPQ | Luang Prabang Airport | Luang Prabang |  Lao People's Democratic Republic |
| LPR | Lorain County Regional Airport | Cleveland | United States of America |
| LPS | Lopez Island Airport | Friday Harbor | United States of America |
| LPT | Lampang Airport | Lampang | Thailand |
| LPU | Long Apung Airport | Samarinda | Indonesia |
| LPW | Little Port Walter Airport | Sitka | United States of America |
| LPX | Liepaja Airport | Liepaya |  Latvia |
| LPY | Loudes Airport | Le Puy | France |
| LQK | Pickens Airport | Greenville | United States of America |
| LQM | Puerto Leguizamo Airport | Puerto Asis | Colombia |
| LQN | Qala Nau Airport | Herat |  Afghanistan |
| LRA | Larisa Airport | Thessaloniki |  Greece |
| LRB | Leribe Airport | Maseru | Lesotho |
| LRC | Leicester Airport | Leicestershire | United Kingdom of Great Britain and Northern Ireland |
| LRD | Laredo International Airport | Laredo | United States of America |
| LRE | Longreach Airport | Longreach | Australia |
| LRF | Little Rock Air Force Base | Little Rock | United States of America |
| LRG | Lora Lai Airport | Quetta | Pakistan |
| LRH | La Rochelle – Île de Ré Airport | La Rochelle | France |
| LRI | Lorica Airport | Monteria | Colombia |
| LRJ | Le Mars Municipal Airport | Sioux City | United States of America |
| LRK | Coast Guard Airport | Traverse City | United States of America |
| LRL | Niamtougou Airport | Lome | Togo |
| LRM | Casa de Campo International Airport | La Romana |  Dominican Republic |
| LRO | Sharpe AAF | Columbus | United States of America |
| LRQ | Laurie River Airport | Flin Flon | Canada |
| LRR | Larestan International Airport | Lar | Iran (Islamic Republic of) |
| LRS | Leros Airport | Leros | Greece |
| LRT | Lann Bihoue Airport | Lorient | France |
| LRU | Las Cruces International Airport | El Paso | United States of America |
| LRV | Los Roques Airport | Caracas | Venezuela (Bolivarian Republic of) |
| LSA | Losuia Airport | Alotau | Papua New Guinea |
| LSB | Lordsburg Airport | Silver City | United States of America |
| LSC | La Florida Airport | La Serena | Chile |
| LSE | La Crosse Regional Airport | La Crosse | United States of America |
| LSF | Lawson AAF | Columbus | United States of America |
| LSH | Lashio Airport | Mandalay | Myanmar |
| LSJ | Long Island Airport | Lae | Papua New Guinea |
| LSK | Lusk Airport | Scottsbluff | United States of America |
| LSL | Los Chiles Airport | Fortuna | Costa Rica |
| LSM | Lawas STOLport | Lawas | Malaysia |
| LSN | Los Banos Airport | Merced | United States of America |
| LSO | Talmont Airport | La Rochelle | France |
| LSP | Josefa Camejo Airport | Las Piedras | Venezuela (Bolivarian Republic of) |
| LSQ | Maria Dolores Airport | Concepcion | Chile |
| LSR | Lost River Airport | Teller Mission | United States of America |
| LSS | Terre-de-Haut Airport | Abymes |  Guadeloupe |
| LST | Launceston Airport | Launceston | Australia |
| LSU | Long Sukang Airport | Lawas | Malaysia |
| LSV | Nellis AFB | Las Vegas | United States of America |
| LSW | Lhoksumawe Airport | Lhoksumawe | Indonesia |
| LSX | Lhok Sukon Airport | Lhoksumawe | Indonesia |
| LSY | Lismore Airport | Lismore | Australia |
| LSZ | Losinj Airport | Pula |  Croatia |
| LTA | Letaba Airport | Polokwane | South Africa |
| LTB | Latrobe Airport | Devonport | Australia |
| LTC | Lai Airport | Ndjamena |  Chad |
| LTD | Ghadames Airport | Tripoli | Libya |
| LTF | Leitre Airport | Vanimo | Papua New Guinea |
| LTG | Langtang Airport | Kathmandu | Nepal |
| LTH | Lathrop Wells Airport | Las Vegas | United States of America |
| LTI | Altai Airport | Khovd |  Mongolia |
| LTK | Latakia Airport | Damascus |  Syrian Arab Republic |
| LTL | Lastourville Airport | Libreville | Gabon |
| LTM | Lethem Airport | Georgetown |  Guyana |
| LTN | Luton Airport | London | United Kingdom of Great Britain and Northern Ireland |
| LTO | Loreto Airport | Loreto | Mexico |
| LTP | Lyndhurst Airport | Townsville | Australia |
| LTQ | Le Touquet Airport | Calais | France |
| LTR | Letterkenny Airport | Donegal |  Ireland |
| LTS | Altus AFB | Lawton | United States of America |
| LTT | La Mole Airport | Toulon | France |
| LTV | Lotusvale Airport | Karumba | Australia |
| LTW | St Marys County Airport | Camp Springs | United States of America |
| LTX | Cotopaxi International Airport | Latacunga | Ecuador |
| LUA | Tenzing–Hillary Airport/Lukla Airport | Tumling Tar | Nepal |
| LUB | Lumid Pau Airport | Georgetown | Guyana |
| LUC | Laucala Island Airport | Wallis Island | Fiji |
| LUD | Luderitz Airport | Luderitz | Namibia |
| LUE | Lucenec Airport | Poprad/Tatry |  Slovakia |
| LUF | Luke Air Force Base | Phoenix | United States of America |
| LUG | Lugano Airport | Lugano |  Switzerland |
| LUH | Sahnewal Airport (Ludhiana Airport) | Chandigarh | India |
| LUI | La Union Airport | La Ceiba | Honduras |
| LUJ | Lusikisiki Airport | Margate | South Africa |
| LUK | Cincinnati Municipal-Lunken Field Airport | Cincinnati | United States of America |
| LUL | Hesler-Noble Field Airport | Laurel | United States of America |
| LUM | Mangshi Airport | Mangshi | China |
| LUN | Lusaka Airport | Lusaka |  Zambia |
| LUO | Luena Airport | Catumbela | Angola |
| LUP | Kalaupapa Airport | Hoolehua | United States of America |
| LUQ | San Luis Airport | San Luis | Argentina |
| LUR | Cape Lisburne | Cape Lisburne | United States of America |
| LUS | Lusanga Airport | Kinshasa | Congo (Democratic Republic of the) |
| LUT | Laura Station Airport | Cooktown | Australia |
| LUU | Laura Airport | Cooktown | Australia |
| LUV | Langgur Airport | Langgur | Indonesia |
| LUW | Bubung / Aminuddin Amir Airport | Luwuk | Indonesia |
| LUX | Findel Airport | Luxembourg |  Luxembourg |
| LUY | Lushoto Airport | Tanga | Tanzania |
| LUZ | Lushan Airport | Swidnik | China |
| LVA | Entrammes Airport | Angers | France |
| LVB | Dos Galpoes Airport | Uruguaiana | Brazil |
| LVD | Lime Village Airport | Tatalina | United States of America |
| LVI | Livingstone Airport | Livingstone | Zambia |
| LVK | Livermore Airport | Hayward | United States of America |
| LVL | Lawrenceville/Brunswick Municipal Airport | Richmond | United States of America |
| LVM | Mission Field Airport | Belgrade | United States of America |
| LVO | Laverton Airport | Kalgoorlie | Australia |
| LVP | Lavan Airport | Lamerd | Iran (Islamic Republic of) |
| LVS | Las Vegas Municipal Airport | Albuquerque | United States of America |
| LWA | Lebak Airport | Cotabato | Philippines |
| LWB | Greenbrier Valley Airport | Lewisburg | United States of America |
| LWC | Lawrence Airport | Kansas City | United States of America |
| LWE | Lewoleba Airport | Larantuka | Indonesia |
| LWH | Lawn Hill Airport | Doomadgee | Australia |
| LWI | Lowai Airport | Lae | Papua New Guinea |
| LWL | Harriet Field Airport | Elko | United States of America |
| LWM | Lawrence Municipal Airport | Boston | United States of America |
| LWN | Gyoumri Airport | Gyoumri |  Armenia |
| LWO | Snilow Airport | Lviv |  Ukraine |
| LWR | Leeuwarden Airport | Groningen | Netherlands |
| LWS | Nez Perce County Rgnl Airport | Lewiston | United States of America |
| LWT | Lewistown Municipal Airport | Havre | United States of America |
| LWV | Lawrenceville–Vincennes International Airport | Evansville | United States of America |
| LWY | Lawas Airport | Lawas | Malaysia |
| LXA | Gonggar/Lhasa Airport | Lhasa | China |
| LXG | Luang Namtha Airport | Luang Namtha | Lao People's Democratic Republic |
| LXI | Linxi Airport | Liping | China |
| LXN | Jim Kelly Field | Kearney | United States of America |
| LXR | Luxor Airport International | Luxor |  Egypt |
| LXS | Limnos Airport | Limnos | Greece |
| LXU | Lukulu Airport | Kalabo | Zambia |
| LXV | Leadville Airport | Vail | United States of America |
| LYA | Luoyang Airport | Luoyang | China |
| LYB | Little Cayman Airport | Little Cayman |  Cayman Islands |
| LYC | Lycksele Airport | Lycksele | Sweden |
| LYE | RAF Lyneham | Bath | United Kingdom of Great Britain and Northern Ireland |
| LYG | Lianyungang Airport | Lianyungang | China |
| LYH | Preston-glenn Field Airport | Lynchburg | United States of America |
| LYI | Linyi Airport | Linyi | China |
| LYK | Lunyuk Airport | Sumbawa Besar | Indonesia |
| LYN | Bron | Lyon | France |
| LYO | Lyons-Rice County Municipal Airport | Salina | United States of America |
| LYP | Faisalabad Airport | Faisalabad | Pakistan |
| LYR | Svalbard Airport | Longyearbyen | Norway |
| LYS | Lyon–Saint-Exupery Airport | Lyon | France |
| LYT | Lady Elliot Island Airport | Bundaberg | Australia |
| LYU | Ely Airport | Elko | United States of America |
| LYX | London Ashford International (Ferryfield) Airport | London | United Kingdom of Great Britain and Northern Ireland |
| LZA | Luiza Airport | Solwezi | Luxembourg |
| LZC | Lazaro Cardenas Airport | Lazaro Cardenas | Mexico |
| LZD | Lanzhoudong | Lanzhou | China |
| LZH | Liuzhou Airport | Liuzhou | China |
| LZI | Luozi Airport | Brazzaville | Luxembourg |
| LZM | Cuango-Luzamba Airport | Luanda | Angola |
| LZN | Nangan | Nangan | Taiwan, Province of China |
| LZO | Luzhou Airport | Luzhou | China |
| LZR | Lizard Island Airport | Cooktown | Australia |
| LZU | Gwinnett County Airport | Atlanta | United States of America |
| LZY | Nyingchi | Nyingchi | China |