United Kingdom

British Caledonian
A Gatwick-based international airline created through the combination of Caledonian Airways and British United Airways. British Airways acquired it in 1988.

Dan-Air
Dan-Air developed into a major British charter and scheduled carrier. British Airways acquired parts of its operations in 1992 as the airline ceased independent trading.

Monarch Airlines
Monarch was a major British leisure airline, later operating scheduled flights. It entered administration in October 2017 following prolonged financial pressure.

British Midland / bmi
British Midland grew from regional aviation into a Heathrow-based airline and later used the bmi name. International Airlines Group acquired bmi from Lufthansa in 2012 and…
Flybe (original airline)
Originating as Jersey European Airways, Flybe became a prominent regional airline. The original company entered administration in March 2020; a later separate Flybe operation also ceased…

British Airtours
A British Airways charter subsidiary known earlier as BEA Airtours and later rebranded Caledonian Airways after the British Caledonian acquisition.