| DBA | Deutsche British Airways Tochterunternehmen der BA |
| BEA | British European Airways Corporation [engl.] |
| BOAC | British Overseas Airways Corporation [engl.] |
| BD | British Midland Airways / bmi [IATA-Airline-Code/ Großbritannien] |
| KJ | British Mediterranean Airways [IATA-Airline-Code/ Vereinigtes Königreich] |
| BA | British Airways [IATA-Airline-Code/ Vereinigtes Königreich] [engl.] Nachfolge-Unternehmen von BOAC und BEA |
| JY | British European Airways [IATA-Airline-Code/ Vereinigtes Königreich], bis 1974 |
| Br. Archaeol. Rep., Br. Ser. | British Archaeological Reports, British Series Zeitschrift |
| SAS | Scandinavian Airways System |
| ANA | All Nippon Airways [engl.] Japanische Luftfahrtgesellschaft |
| AMB | Airways Modernization Board Heute: FAA |
| US | US Airways [IATA-Airline-Code / USA] |
| ER | DHL Airways [IATA-Airline-Code/ USA] |
| HBM | Her British Majesty |
| BC | British Columbia kanadische Provinz |
| BH | British Honduras Internationales Kfz-Kennzeichen von Belize [ehemals British Honduras] |
| WO | World Airways [IATA-Airline-Code / USA] |
| 3V | TNT Airways [IATA-Airline-Code/ Belgien] |
| 9W | Jet Airways [IATA-Airline-Code/ Indien] |
| B6 | JetBlue Airways [IATA-Airline-Code/ USA] |
| CN | Westward Airways [IATA-Airline-Code/ USA] |
| S8 | Elk Airways [IATA-Airline-Code / Estland] |
| bwi | British West Indies |
| BSB | British Sky Broadcasting [engl.] Britisches Rundfunkunternehmen |
| BL | British Library [engl.] |
| BM | British Museum [engl.] |
| BIH | British International Helicopters |
| BIH | British Institute of Homeopathy |
| BP | British Petrol [engl.] Ölkonzern |
| BR | British Rail [engl.] Britische Eisenbahnen |
| BRC | British Red Cross [engl.] Britisches Rotes Kreuz |
| BS | British Standard [engl.] |
| BEF | British Expeditionary Force [vgl. AEF] |
| BEC | British Electrotechnical Committee |
| BAe | British Aerospace [engl.] |
| VG | Virgin Islands, British |
| UBC | University of British Columbia |
| BT | British Telecom [engl.] "Ehemaliges Staatsunternehmen "Post"" |
| IQ | Augsburg Airways [IATA-Airline-Code/ Deutschland] |
| TG | Thai Airways [IATA-Airline-Code / Thailand] |
| PC | Continental Airways [IATA-Airline-Code / Russland] |
| OP | Chalk’s Ocean Airways [IATA-Airline-Code/ USA] |
| OA | Olympic Airways [IATA-Airline-Code/ Griechenland] Heute: Olympic Airlines, Athen, http://www.olympic-airlines.de |
| NH | All Nippon Airways [IATA-Airline-Code/ Japan] |
| PG | Bangkok Airways [IATA-Airline-Code / Thailand] |
| IY | Yemen Airways [IATA-Airline-Code/ Jemen] |
| Q3 | Zambian Airways [IATA-Airline-Code / Zambia] |
| QR | Qatar Airways [IATA-Airline-Code / Katar] |
| RV | Reeve Aleutian Airways [IATA-Airline-Code / USA] |
| S9 | Transjet Airways [IATA-Airline-Code / Schweden] |