| A Carnevalli | Venezuela | MRD | More info |
| A. De Barros | Brazil | PPB | More info |
| A. Tubman | Liberia | CPA | More info |
| Aachen/Merzbruck | Germany | AAH | More info |
| Aalborg | Denmark | AAL | More info |
| Aarhus Airport | Denmark | AAR | More info |
| Aarhus Limo | Denmark | ZBU | More info |
| Aasiaat | Greenland | JEG | More info |
| Ab | Korea (South) | OSN | More info |
| Aba Tenna D Yilma | Ethiopia | DIR | More info |
| Abadan | Iran | ABD | More info |
| Abaiang | Kiribati | ABF | More info |
| Abakan | Russian Federation | ABA | More info |
| Abau | Papua New Guinea | ABW | More info |
| Abbaye | Mauritania | BGH | More info |
| Abbotsford | Canada | YXX | More info |
| Abbse | Yemen | EAB | More info |
| Abdul Rahman Saleh | Indonesia | MLG | More info |
| Abemama Atoll | Kiribati | AEA | More info |
| Abengourou | Cote D'Ivoire (Ivory Coast) | OGO | More info |
| Abha | Saudi Arabia | AHB | More info |
| Abingdon | Australia | ABG | More info |
| Aboisso | Cote D'Ivoire (Ivory Coast) | ABO | More info |
| Abou Bakr Belkaid | Algeria | CFK | More info |
| Abou Deia | Chad | AOD | More info |
| Abreojos | Mexico | AJS | More info |
| Abu Dhabi Intl | United Arab Emirates | AUH | More info |
| Abu Musa | Iran | AEU | More info |
| Abu Rudeis | Egypt | AUE | More info |
| Abu Simbel | Egypt | ABS | More info |
| Acadiana Regional | United States | ARA | More info |
| Acandi | Colombia | ACD | More info |
| Acaricuara | Colombia | ARF | More info |
| Acarigua | Venezuela | AGV | More info |
| Accomack County | United States | MFV | More info |
| Achinsk | Russian Federation | ACS | More info |
| Achmad Yani | Indonesia | SRG | More info |
| Achutupo | Panama | ACU | More info |
| Ada | United States | ADT | More info |
| Adak Island NS | United States | ADK | More info |
| Adana | Turkey | ADA | More info |
| Adana-Incirlik Airbase | Turkey | UAB | More info |
| Ad-Dabbah | Sudan | AAD | More info |
| Addison Airport | United States | ADS | More info |
| Adelaide | Australia | ADL | More info |
| Adelaide Keswick Rail | Australia | XHX | More info |
| Adi Sumarmo | Indonesia | SOC | More info |
| Adirondack | United States | SLK | More info |
| Adisutjipto | Indonesia | JOG | More info |
| Adiyaman | Turkey | ADF | More info |
| Adler/Sochi | Russian Federation | AER | More info |
| Adnan Menderes Arpt | Turkey | ADB | More info |
| Adrar | Algeria | AZR | More info |
| Aek Godang | Indonesia | AEG | More info |
| Aerogare | France | XEX | More info |
| Aeroport De La Seu | Spain | LEU | More info |
| Aeroporto Max Feffer | Brazil | MVS | More info |
| Aeropuero de Bajio | Spain | LEN | More info |
| Aeropuerto Del Norte | Mexico | NTR | More info |
| Af Aux | United States | INS | More info |
| AFB | United States | HST | More info |
| AFB | United States | MUO | More info |
| AFB | United States | PBG | More info |
| AFB Municipal | United States | CHS | More info |
| AFC | Liberia | XSA | More info |
| Afonso Pena International Airport | Brazil | CWB | More info |
| Afore | Papua New Guinea | AFR | More info |
| AFS | United States | OHC | More info |
| AFS | United States | PML | More info |
| Afutara Aerodrome | Solomon Islands | AFT | More info |
| Afyon | Turkey | AFY | More info |
| Agades | Niger | AJY | More info |
| Agadir Almassira | Morocco | AGA | More info |
| Agana Nas | Guam (usa) | NGM | More info |
| Agatti Island | India | AGX | More info |
| Agaun | Papua New Guinea | AUP | More info |
| Aggeneys | South Africa | AGZ | More info |
| Aghajari | Iran | AKW | More info |
| Agnew | Australia | AGW | More info |
| Agoncillo | Spain | RJL | More info |
| Agora Helipad | France | JAH | More info |
| Agrinion | Greece | AGQ | More info |
| Aguaclara | Colombia | ACL | More info |
| Aguascalients | Mexico | AGU | More info |
| Aguasclaras | Colombia | OCV | More info |
| Aguemar | Algeria | TMR | More info |
| Aguni | Japan | AGJ | More info |
| Ahe Airport | French Polynesia | AHE | More info |
| Ahmed Al Jaber | Kuwait | XIJ | More info |
| Ahmedabad | India | AMD | More info |
| Ahuas | Honduras | AHS | More info |
| Ahwaz | Iran | AWZ | More info |
| Ai-Ais | Namibia | AIW | More info |
| Aiambak | Papua New Guinea | AIH | More info |
| Ailigandi | Panama | AIL | More info |
| Ailinglapalap Island | Marshall Islands | AIP | More info |
| Ailuk Island | Marshall Islands | AIM | More info |
| Ain Beida | Algeria | OGX | More info |
| Ain Eddis | Algeria | BUJ | More info |
| Ain El Bey | Algeria | CZL | More info |
| Ainsworth | United States | ANW | More info |
| Aiome | Papua New Guinea | AIE | More info |
| Aioun El Atrouss | Mauritania | AEO | More info |
| Air Base | Germany | WIE | More info |
| Air Force 42 | United States | PMD | More info |
| Air Term. (Gowen Fld) | United States | BOI | More info |
| Air Terminal | United States | HWD | More info |
| Air Terminal | United States | SEF | More info |
| Airai | Palau | ROR | More info |
| Airfield | Italy | UDN | More info |
| Airok | Marshall Islands | AIC | More info |
| Airpark | United States | MDD | More info |
| Airstrip | United States | VIK | More info |
| Airstrip | Papua New Guinea | ATP | More info |
| Airterminal | United States | FAT | More info |
| Aishalton | Guyana | AHL | More info |
| Aitutaki | Cook Islands | AIT | More info |
| Aiyura | Papua New Guinea | AYU | More info |
| Aizawl | India | AJL | More info |
| Akhiok SPB | United States | AKK | More info |
| Akiak | United States | AKI | More info |
| Akita | Japan | AXT | More info |
| Akjoujt | Mauritania | AJJ | More info |
| Aklavik | Canada | LAK | More info |
| Akola | India | AKD | More info |
| Akron/Canton Regional | United States | CAK | More info |
| Akrotiri RAF | Cyprus | AKT | More info |
| Aksu | China | AKU | More info |
| Aktau | Kazakhstan | SCO | More info |
| Aktion | Greece | PVK | More info |
| Aktyubinsk | Kazakhstan | AKX | More info |
| Akulivik | Canada | AKV | More info |
| Akure | Nigeria | AKR | More info |
| Akureyri | Iceland | AEY | More info |
| Akutan | United States | KQA | More info |
| Al Ain | United Arab Emirates | AAN | More info |
| Al Arish | Egypt | AAC | More info |
| Al Dhafra Military Apt | United Arab Emirates | DHF | More info |
| Al Ghaydah | Yemen | AAY | More info |
| Al Jafrah | Syria | DEZ | More info |
| Al Janad | Yemen | TAI | More info |
| Al Koude | Oman | WWG | More info |
| Al Muthana | Iraq | BGW | More info |
| Al Railway | Norway | XXR | More info |
| Al Thaurah | Syria | SOR | More info |
| Al Udeid | Qatar | XJD | More info |
| Alah | Philippines | AAV | More info |
| Alahsa | Saudi Arabia | HOF | More info |
| Alakanuk | United States | AUK | More info |
| Alalamain Intl. | Egypt | DBB | More info |
| Alama Iqbal International | Pakistan | LHE | More info |
| Alamos | Mexico | XAL | More info |
| Al-Aqiq | Saudi Arabia | ABT | More info |
| Albany | United States | CVO | More info |
| Albany | Australia | ALH | More info |
| Albany International | United States | ALB | More info |
| Albany NAS | United States | NAB | More info |
| Albany NY Rail | United States | ZLY | More info |
| Albemarle | United States | CHO | More info |
| Albenga | Italy | ALL | More info |
| Albert J Ellis | United States | OAJ | More info |
| Albert Lea | United States | AEL | More info |
| Alberto Lleras Camargo | Colombia | SOX | More info |
| Albertus | United States | FEP | More info |
| Albina | Suriname | ABN | More info |
| Albuq | Yemen | BUK | More info |
| Albuquerque International | United States | ABQ | More info |
| Albury | Australia | ABX | More info |
| Aldan | Russian Federation | ADH | More info |
| Aleg | Mauritania | LEG | More info |
| Aleknagik | United States | WKK | More info |
| Aleneva | United States | AED | More info |
| Alenquer | Brazil | ALT | More info |
| Alert | Canada | YLT | More info |
| Alert Bay | Canada | YAL | More info |
| Alerta | Peru | ALD | More info |
| Alex Hamilton | Virgin Islands(U.S.) | STX | More info |
| Alexander Field | United States | ISW | More info |
| Alexandra | New Zealand (Aotearoa) | ALR | More info |
| Alexandria | United States | AXN | More info |
| Alexandria Internation | United States | AEX | More info |
| Alexion | Greece | PKH | More info |
| Alfonso B. Aragon | Colombia | CLO | More info |
| Algeciras | Spain | AEI | More info |
| Algona | United States | AXG | More info |
| Alicante | Spain | ALC | More info |
| Alice Arm | Canada | ZAA | More info |
| Alice Springs | Australia | ASP | More info |
| Alice Springs Railway | Australia | XHW | More info |
| Alisabieh | Djibouti | AII | More info |
| Alitak SPB | United States | ALZ | More info |
| Aljouf | Yemen | AJO | More info |
| Allakaket | United States | AET | More info |
| Alldays | South Africa | ADY | More info |
| Allegheny County | United States | AGC | More info |
| Allen County | United States | AOH | More info |
| Alliance | United States | AIA | More info |
| Alluitsup Paa | Greenland | LLU | More info |
| Alma | Canada | YTF | More info |
| Almaty | Kazakhstan | ALA | More info |
| Almenara | Brazil | AMJ | More info |
| Almeria | Spain | LEI | More info |
| Along | India | IXV | More info |
| Alor Island | Indonesia | ARD | More info |
| Alor Setar | Malaysia | AOR | More info |
| Alowe | Gabon | AWE | More info |
| Alpe Adria | Austria | KLU | More info |
| Alpe D Huez | France | AHZ | More info |
| Alpena County Regional | United States | APN | More info |
| Alpha | Australia | ABH | More info |
| Alpine | United States | ALE | More info |
| Alroy Downs | Australia | AYD | More info |
| Alta | Norway | ALF | More info |
| Alta Floresta | Brazil | AFL | More info |
| Alta Lake | Canada | YAE | More info |
| Altai | Mongolia | LTI | More info |
| Altamira | Brazil | ATM | More info |
| Altay | China | AAT | More info |
| Altenburg Nobitz | Germany | AOC | More info |
| Altenrhein | Switzerland | ACH | More info |
| Alto Molocue | Mozambique | AME | More info |
| Alto Palena | Chile | WAP | More info |
| Alto Parnaiba | Brazil | APY | More info |
| Alto Rio Senguerr | Argentina | ARR | More info |
| Alton | United States | ALN | More info |
| Alton Downs | Australia | AWN | More info |
| Altus AFB | United States | LTS | More info |
| Alula | Somalia | ALU | More info |
| Alvesta | Sweden | XXA | More info |
| Alyangula | Australia | GTE | More info |
| Alyeska | United States | AQY | More info |
| Am Timan | Guam | AMC | More info |
| Ama | Papua New Guinea | AMF | More info |
| Amahai | Indonesia | AHI | More info |
| Amalfi | Colombia | AFI | More info |
| Amami O Shima | Japan | ASJ | More info |
| Amanab | Papua New Guinea | AMU | More info |
| Amata | Australia | AMT | More info |
| Amata Kabua Intl | Marshall Islands | MAJ | More info |
| Amausi | India | LKO | More info |
| Amazon Bay | Papua New Guinea | AZB | More info |
| Ambanja | Madagascar | IVA | More info |
| Ambatolahy | Madagascar | AHY | More info |
| Ambatomainty | Madagascar | AMY | More info |
| Ambatondrazaka | Madagascar | WAM | More info |
| Ambilobe | Madagascar | AMB | More info |
| Ambler | United States | ABL | More info |
| Amboin | Papua New Guinea | AMG | More info |
| Amborovy | Madagascar | MJN | More info |
| Amboseli | Kenya | ASV | More info |
| Ambouli | Djibouti | JIB | More info |
| Ambriz | Angola | AZZ | More info |
| Ambunti | Papua New Guinea | AUJ | More info |
| Amchitka | United States | AHT | More info |
| Amderma | Russian Federation | AMV | More info |
| Amedee AAF | United States | AHC | More info |
| American River | Australia | RCN | More info |
| Ames | United States | AMW | More info |
| Amilcar Cabral Intl | Cape Verde | SID | More info |
| Aminu Kano Intl Apt | Nigeria | KAN | More info |
| Ammaroo | Australia | AMX | More info |
| Amook | United States | AOS | More info |
| Amos | Canada | YEY | More info |
| Ampanihy | Madagascar | AMP | More info |
| Ampara | Sri Lanka | ADP | More info |
| Amparai | Sri Lanka | GOY | More info |
| Amsterdam-schiphol | Netherlands | AMS | More info |
| An Shun/Huang Guo Shu | China | AVA | More info |
| Anaa | French Polynesia | AAA | More info |
| Anaco | Venezuela | AAO | More info |
| Anacortes | United States | OTS | More info |
| Anadolu University | Turkey | AOE | More info |
| Anadyr | Russian Federation | DYR | More info |
| Anahim Lake | Canada | YAA | More info |
| Anaktuvuk | United States | AKP | More info |
| Analalava | Madagascar | HVA | More info |
| Anapa | Russian Federation | AAQ | More info |
| Anapolis | Brazil | APS | More info |
| Ancud | Chile | ZUD | More info |
| Andahuaylas | Peru | ANS | More info |
| Andakombe | Papua New Guinea | ADC | More info |
| Andamooka | Australia | ADO | More info |
| Andapa | Madagascar | ZWA | More info |
| Andenes | Norway | ANX | More info |
| Andersen AFB | Mariana Island | UAM | More info |
| Anderson | United States | AND | More info |
| Andes | Colombia | ADN | More info |
| Andorra La Vella H/P | Unknown | ALV | More info |
| Andover | United Kingdom | ADV | More info |
| Andrau Airpark | United States | AAP | More info |
| Andravida | Greece | PYR | More info |
| Andrews | United States | ADR | More info |
| Andrews NAF | United States | NSF | More info |
| Andriamena | Madagascar | WAD | More info |
| Andros Town | Bahamas | ASD | More info |
| Andulo | Angola | ANL | More info |
| Anegada | Virgin Islands (British) | NGD | More info |
| Aneityum | Vanuatu | AUY | More info |
| Anfa | Morocco | CAS | More info |
| Angel Fire | United States | AXX | More info |
| Angelholm | Sweden | AGH | More info |
| Angelholm Railway Svc. | Sweden | XYQ | More info |
| Anggi | Indonesia | AGD | More info |
| Angling Lake | Canada | YAX | More info |
| Angoche | Mozambique | ANO | More info |
| Angoon | United States | AGN | More info |
| Angoram | Papua New Guinea | AGG | More info |
| Anguganak | Papua New Guinea | AKG | More info |
| Angus Downs | Australia | ANZ | More info |
| Aniak | United States | ANI | More info |
| Animas Airpark | United States | AMK | More info |
| Anita Bay | United States | AIB | More info |
| Aniwa | Vanuatu | AWD | More info |
| Ankang | China | AKA | More info |
| Ankavandra | Madagascar | JVA | More info |
| Ankazoabo | Madagascar | WAK | More info |
| Ankokoambo | Madagascar | NKO | More info |
| Annai | Guyana | NAI | More info |
| Annanberg | Papua New Guinea | AOB | More info |
| Annecy-Meythe | France | NCY | More info |
| Annette Island | United States | ANN | More info |
| Anqing | China | AQG | More info |
| Anshan | China | AOG | More info |
| Anta | Peru | ATA | More info |
| Antalya | Turkey | AYT | More info |
| Antananarivo | Madagascar | TNR | More info |
| Anthony | United States | ANY | More info |
| Anthony Lagoon | Australia | AYL | More info |
| Antlers | United States | ATE | More info |
| Antonio Maceo | Cuba | SCU | More info |
| Antrim County | United States | ACB | More info |
| Antsalova | Madagascar | WAQ | More info |
| Antsirabato | Madagascar | ANM | More info |
| Antsirabe | Madagascar | ATJ | More info |
| Antsiranana/Arrachart | Madagascar | DIE | More info |
| Antsohihy | Madagascar | WAI | More info |
| Anuha Island Resort | Solomon Islands | ANH | More info |
| Anuradhapura | Sri Lanka | ACJ | More info |
| Anvik | United States | ANV | More info |
| Anyang | China | AYN | More info |
| Aomori | Japan | AOJ | More info |
| Ap In The Sky | United States | CIB | More info |
| Apalapsili | Indonesia | AAS | More info |
| Apartado | Colombia | APO | More info |
| Apataki | French Polynesia | APK | More info |
| Apatzingan | Mexico | AZG | More info |
| Apiay | Colombia | API | More info |
| Apolo | Bolivia | APB | More info |
| Apple Valley | United States | APV | More info |
| April River | Papua New Guinea | APR | More info |
| Apucarana | Brazil | APU | More info |
| Araak | Iran | AJK | More info |
| Aracaju | Brazil | AJU | More info |
| Aracatuba | Brazil | ARU | More info |
| Arad | Romania | ARW | More info |
| Aragarcas | Brazil | ARS | More info |
| Aragip | Papua New Guinea | ARP | More info |
| Araguaina | Brazil | AUX | More info |
| Aramac | Australia | AXC | More info |
| Arandis | Namibia | ADI | More info |
| Aransas County | United States | RKP | More info |
| Aranuka | Kiribati | AAK | More info |
| Arapahoe Co | United States | APA | More info |
| Arapiraca | Brazil | APQ | More info |
| Arapongas | Brazil | APX | More info |
| Arapoti | Brazil | AAG | More info |
| Arar | Saudi Arabia | RAE | More info |
| Araracuara | Colombia | ACR | More info |
| Ararat | Australia | ARY | More info |
| Arauca | Colombia | AUC | More info |
| Arauquita | Colombia | ARQ | More info |
| Arawa | Papua New Guinea | RAW | More info |
| Araxa | Brazil | AAX | More info |
| Araxos Airport | Greece | GPA | More info |
| Arba Mintch | Ethiopia | AMH | More info |
| Arbatax | Italy | TTB | More info |
| Arboletas | Colombia | ARO | More info |
| Arcata | United States | ACV | More info |
| Arctic Bay | Canada | YAB | More info |
| Ardabil | Iran | ADU | More info |
| Ardmore | New Zealand (Aotearoa) | AMZ | More info |
| Ardmore Municipal Arpt | United States | ADM | More info |
| Arecibo | Puerto |