| A | ||
| Aalborg, Denmark (AAL) | Alghero, Italy (AHO) | Antwerp, Belgium - Deurne Airport (ANR) |
| Aalesund, Norway (AES) | Algiers, Algeria (ALG) | Antwerp, Belgium - Bus service (ZAY) |
| Aarhus, Denmark - Bus service (ZID) | Alicante, Spain (ALC) | Aomori, Japan (AOJ) |
| Aarhus, Denmark - Tirstrup (AAR) | Alice Springs, Australia (ASP) | Aosta, Italy (AOT) |
| Aasiaat, Greenland (JEG) | Almaty, Kazakhstan (AKX) | Apartado, Colombia (APO) |
| Abadan, Iran (ABD) | Almeria, Spain (LEI) | Apia, Western Samoa (APW) |
| Abakan, Russia (ABA) | Alor Island, Indonesia (ARD) | Apia, Western Samoa (FGI) |
| Aberdeen, United Kingdom (ABZ) | Alorsetar, Malaysia (AOR) | Aqaba, Jordan (AQJ) |
| Abha, Saudi Arabia (AHB) | Alotau, Papua New Guinea (GUR) | Araca, Brazil (AJU) |
| Abidjan, Cote d'Ivoire (ABJ) | Alta, Norway (ALF) | Aracatuba, Brazil (ARU) |
| Abu Dhabi, United Arab Emirates (AUH) | Altamira, Brazil (ATM) | Arad, Romania (ARW) |
| Abu Simbel, Egypt (ABS) | Altay, China (AAT) | Aragip, Papua New Guinea (ARP) |
| Abuja, Nigeria (ABV) | Altenrhein, Switzerland (ACH) | Araguaina, Brazil (AUX) |
| Acapulco, Mexico (ACA) | Alto Rio Senguerr, Argentina (ARR) | Arapoti, Brazil (AAG) |
| Acarigua, Venezuela (AGV) | Amami O Shima, Japan (ASJ) | Arar, Saudi Arabia (RAE) |
| Accra, Ghana (ACC) | Amazon Bay, Papua New Guinea (AZB) | Arauca, Colombia (AUC) |
| Adana, Turkey (ADA) | Ambanja, Madagascar (IVA) | Arba Mintch, Ethiopia (AMH) |
| Addis Ababa, Ethopia (ADD) | Ambatomainty, Madagascar (AMY) | Ardabil, Iran (ADU) |
| Adelaide, Australia (ADL) | Ambatondrazaka, Madagascar (WAM) | Arequipa, Peru (AQP) |
| Aden, Yemen (ADE) | Ambon, Indonesia (AMQ) | Argelholm/Helsingborg, Sweden (AGH) |
| Adler/Sochi, Russia (AER) | Amboseli, Kenya (ASV) | Argyle, Australia (GYL) |
| Adrar, Algeria (AZR) | Amderma, Russia (AMV) | Arica, Chile (ARI) |
| Afutara, Soloman Islands (AFT) | Amman, Jordan - Queen Alia International (AMM) | Arkangelsk, Russia (ARH) |
| Agadir, Morocco (AGA) | Amman, Jordan - Civil/Marka Airport (ADJ) | Armenia, Colombia (AXM) |
| Agartala, India (IXA) | Amritsar, India (ATQ) | Armidale, Australia (ARM) |
| Agaun, Papua New Guinea (AUP) | Amsterdam, Netherlands (AMS) | Arthur's Town, Bahamas (ATC) |
| Agen, France (AGF) | Anadyr, Russia (DYR) | Arua, Uganda (RUA) |
| Agra, India (AGR) | Analalava, Madagascar (HVA) | Aruba, Aruba (AUA) |
| Agri, Turkey (AJI) | Anapa, Russia (AAQ) | Arusha, Tanzania (ARK) |
| Aguadilla, Puerto Rico (BQN) | Ancona, Italy (AOI) | Arvidsjaur, Sweden (AJR) |
| Aguascalientes, Mexico (AGU) | Andenes, Norway (ANX) | Asahikawa, Japan (AKJ) |
| Aguni, Japan (AGJ) | Andizhan, Uzbekistan (AZN) | Ashgabat, Turkmenistan (ASB) |
| Ahmedabad, India (AMD) | Andros, Bahamas (ASD) | Asmara, Eritrea (ASM) |
| Ahwaz, Iran (AWZ) | Aneityum, Vanuatu (AUY) | Asosa, Ethopia (ASO) |
| Ailuk Island, Marshall Islands (AIM) | Angelholm/Helsingborg, Sweden (JHE) | Assiut, Egypt (ATZ) |
| Aioun El Atrouss, Mauritania (AEO) | Angers, France - Marce (ANE) | Astana, Kazakhstan (TSE) |
| Airok, Marshall Islands (AIC) | Angers, France - Rail service (QXG) | Astrakhan, Russia (ASF) |
| Aitutaki, Cook Islands (AIT) | Anggi, Indonesia (AGD) | Asturias, Spain and Canary Islands (OVD) |
| Aizawl, India (AJL) | Anging, China (AQG) | Asuncion, Paraguay (ASU) |
| Ajaccio, France (AJA) | Angouleme, France (ANG) | Aswan, Egypt (ASW) |
| Akita, Japan (AXT) | Anguilla, Anguilla (AXA) | Ataq, Yemen (AXK) |
| Aksu, China (AKU) | Aniwa, Vanuatu (AWD) | Athens, Greece (ATH) |
| Aktyubinsk, Kazakhstan (AKX) | Ankang, China (AKA) | Atiu Island, Cook Islands (AIU) |
| Akureyri, Iceland (AEY) | Ankara, Turkey - Esenboga (ESB) | Atoifi, Solomon Islands (ATD) |
| Al Ain, United Arab Emirates (AAN) | Ankara, Turkey - Etimesqut (ANK) | Atuona, French Polynesia (AUQ) |
| Al Arish, Egypt (AAC) | Ankavandra, Madagascar (JVA) | Atyrau, Kazakhstan (GUW) |
| Al Ghaydah, Yemen (AAY) | Annaba, Algeria (AAE) | Auckland, New Zealand (AKL) |
| Al Hoceima, Morocco (AHU) | Annecy, France (NCY) | Augsburg/Munich, Germany (AGB) |
| Al-Baha, Saudi Arabia (ABT) | Antalaha, Madagascar (ANM) | Auki, Solomon Islands (AKS) |
| Albury, Australia (ABX) | Antalya, Turkey (AYT) | Aur Island, Marshall Islands (AUL) |
| Alderney, United Kingdom (ACI) | Antaninvarivo, Madgascar (TNR) | Aurangabad, India (IXU) |
| Aleppo, Syrian Arab Republic (ALP) | Antigua, Antigua and Barbuda (ANU) | Aurillac, France (AUR) |
| Alexander Bay, South Africa (ALJ) | Antofagasta, Chile (ANF) | Aurukun, Australia (AUU) |
| Alexandria, Egypt (ALY) | Antsalova, Madagascar (WAQ) | Avignon, France (AVN) |
| Alexandroupolis, Greece (AXD) | Antsiranana, Madagascar (DIE) | Ayawaki, Indonesia (AYW) |
| Al-Fujairah, United Arab Emirates (FJR) | Antsohihy, Madagascar (WAI) | Ayers Rock, Australia (AYQ) |