| | Airport Code | City | State/Region | Country | Airport Name | | BRW | Barrow | AK | USA | Barrow |
| BSB | Brasilia | Distrito Federal | Brazil | International |
| BSK | Biskra | | Algeria | Biskra |
| BSL | Basel | | Switzerland | Basel |
| BTM | Butte | MT | USA | |
| BTS | Bratislava | | Slovakia | Ivanka |
| BTU | Bintulu | Sarawak | Malaysia | Bintulu |
| BTV | Burlington | VT | USA | Burlington International Airport |
| BUD | Budapest | | Hungary | Ferihegy |
| BUF | Buffalo | NY | USA | Greater Buffalo Intl Airport |
| BUQ | Bulawayo | | Zimbabwe | Bulawayo |
| BUR | Burbank | CA | USA | Burbank Glendale Pasadena Airport |
| BUZ | Bushehr | | Iran | Bushehr |
| BVB | Boa Vista | | Roraima | Brazil |
| BVE | Brive-La-Gaillarde | | France | Laroche |
| BVI | Birdsville | Queensland | Australia | Birdsville |
| BWA | Bhairawa | | Nepal | Bhairawa |
| BWI | Baltimore | MD | USA | Baltimore-Washington International |
| BWN | Bandar Seri Begawan | | Brunei Darussalam | Brunei International |
| BXN | Bodrum | | Turkey | Imsik Airport |
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