Originally Posted by
DaveReidUK
One historical legacy at BA, which still applies, is that flight numbers from BA1 to BA299 are nominally longhaul (with odd numbers used outbound from the UK and even numbers inbound), whereas flight numbers BA300 and above are shorthaul and use the opposite convention (even outbound, odd inbound).
Sorry Dave,
Man -JFK back in the day was BA537/538 in BOAC days. BA637/638 was Toronto/Montreal. Both services routed via Prestwick until our runway entention was finished.
Be lucky
David