Originally Posted by
Redwood
As I said, I don't know what the other airlines' allowance is but the highest/most generous allowance will be honoured by all airlines... Regardless of how long the flight is.
Not according to BA.com:
"If your journey includes connecting flights with more than one airline, the checked baggage policy of the airline that operates the longer leg will apply. For example, if you fly with American Airlines from New York to London and connect onto British Airways to Amsterdam, the leg with American Airlines is longer and their baggage policy applies to the whole journey."