All Airports of
- Basseterre Robert L Bradshaw International
- Country: Saint Kitts and Nevis
- International airport of Saint Kitts and Nevis
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- Batken
- Country: Kyrgyzstan
- Regional airport in southwestern Kyrgyzstan
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- Batumi
- Country: Georgia
- International airport in the west of Georgia
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- Baucau Cakung
- Country: East Timor
- Airport near Baucau city
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- Bahrain International
- Country: Bahrain
- International airport in Bahrain
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- Beirut Rafic Hariri International
- Country: Lebanon
- Only commercial airport in Lebanon
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- Belgorod
- Country: Russia
- Regional airport serving Belgorod in south-western Russia
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- Belgrade Nikola Tesla
- Country: Serbia
- Main airport in Serbia
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- Belem Val De Cans International
- Country: Brazil
- Largest airport in the northern part of Brazil
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- Belize City Municipal
- Country: Belize
- Airport in the capital city of Belize handling commuter flights
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- Belize City Philip S. W. Goldson International
- Country: Belize
- Largest airport in Belize
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- Bella Coola
- Country: Canada
- Regional airport serving Bella Coola
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- Bellingham International
- Country: United States
- The third-largest commercial airport in Washington
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- Beloyarsky
- Country: Russia
- Small airport in Western Siberia
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- Belo Horizonte Pampulha
- Country: Brazil
- Airport serving domestic flights performing on small airplanes
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- Belfast International
- Country: United Kingdom
- Main airport in Northern Ireland, formerly known as Aldergrove Airport
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- Belfast City George Best
- Country: United Kingdom
- Regional airport serving Belfast
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- Beltsy
- Country: Moldova
- International airport in the north of Moldova
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- Bemidji Regional
- Country: United States
- Airport is mostly used for general aviation
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- Benghazi Benina International
- Country: Libya
- International airport serving Benghazi
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- Bandar Abbas International
- Country: Iran
- Main airport of Hormozgan Province in southern Iran
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- Benin
- Country: Nigeria
- Small airport serving Benin City and the Edo State of Nigeria
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- Bergen
- Country: Norway
- Second busiest airport in Norway. Official name is Bergen Airport, Flesland
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- Berlin Brandenburg
- Country: Germany
- New international airport of the German capital
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- Berlin Tegel
- Country: Germany
- The former main international airport of the German capital, closed in November 2020 after the launch of the new Berlin Brandenburg Airport
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- Berlin Schonefeld
- Country: Germany
- The smaller of the two former airports in the German capital, converted to Terminal 5 of the new Berlin Brandenburg Airport in 2020
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- Bermuda L. F. Wade International
- Country: Bermuda
- Bermuda's only airport, former name - Bermuda International Airport
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- Bern Belp
- Country: Switzerland
- Regional international airport serving the capital of Switzerland
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- Bethel
- Country: United States
- Regional airport near Bethel in Alaska
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- Betong International
- Country: Thailand
- Small international airport in southern Thailand serving Yala province
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- Billings Logan International
- Country: United States
- Second largest airport in Montana
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- Billund
- Country: Denmark
- Main danish airport served by charter and low-cost airlines
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- Bilbao
- Country: Spain
- Main international airport the Basque Country and northern Spain
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- Birmingham International
- Country: United Kingdom
- International airport in central England
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- Bissau Osvaldo Vieira International
- Country: Guinea-Bissau
- Airport serving the capital city of Guinea-Bissau
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- Beef Island Terrance B. Lettsome International
- Country: British Virgin Islands
- Main airport serving the British Virgin Islands
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- Bishkek Manas International
- Country: Kyrgyzstan
- Main international airport in Kyrgyzstan
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- Blagoveschensk Ignatyevo
- Country: Russia
- International airport serving Amur region in Russian Far East
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- Blantyre Chileka International
- Country: Malawi
- Main airport in southern Malawi
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- Boa Vista International
- Country: Brazil
- Main airport of the Brazilian state of Roraima
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- Bogota Eldorado International
- Country: Colombia
- Largest airport in Colombia
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- Bojnord International
- Country: Iran
- Small international airport serving North Khorasan province in nortnern Iran
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- Boise
- Country: United States
- Joint civil-military airport serving Boise in western USA, also known as Boise Air Terminal or Gowen Field
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- Bol
- Country: Croatia
- Regional airport serving the island of Brach in south Croatia
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- Bologna Guglielmo Marconi
- Country: Italy
- International airport serving Bologna in central Italy
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- Bonaire International
- Country: Netherlands Antilles
- Intenational airport in the island of Bonaire, also known as Flamingo Airport
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- Bora Bora
- Country: French Polynesia
- Regional airport serving the island of Bora Bora, also known as Motu Mute Airport
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- Bordeaux Merignac
- Country: France
- International airport serving the Bordeaux-Arcachon-Libourne metropolitan area
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- Bournemouth
- Country: United Kingdom
- Small international airport serving Bournemouth
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- Boston Logan International
- Country: United States
- One of twenty busiest airports in the USA
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