Development of the Concorde aircraft itself was heavily subsidised. But in service, it was profitable - at least for British Airways:<p><i>On average Concorde made and operating profit of £30-50 Million a year for British Airways in the boom years where many passengers were travelling first class. British Airways reportedly received £1.75 Billion in revenue for Concorde services against an operating cost of around £1 Billion. Air France made a much smaller profit.</i><p>Source:
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