> Concorde earned £500 million for British Airways after tax profit, this was between a loss making 1982 and a highly profitable 2000 with just seven aircraft. The first profitable year was 1983 (£14 million) increasing to £54 million in 1987. BA had good and bad years, in 1992 they actually even made a small loss, but then quickly returned to profitability. Immediately before the crash the profit levels were running at nearly £60 million and could have returned had they kept flying. (Even the last 6 months of operation in 2003 netted £50 million profit).
And:
> With unprofitable routes mounting, Concorde was going through rough times in the early 1980s. At this point, British Airways made a move that potentially saved supersonic travel. In 1981, British Airways managing director Sir John King managed to purchase the Concorde fleet from the British Government outright for £16.5 million plus the first year’s profits. Following the purchase, British Airways increased fares, bringing Concorde routes closer to profitability. With the fleet now owned outright, British Airways added additional routes.
[0] https://www.heritageconcorde.com/concorde--british-airways