Originally Posted by
OPebble
Real cheapo economy fares never have an upgrade option unless BA decide to offer an OLCI upgrade. But normally the options with these fares are "fly or lose it"!
Well, it all depends on where you bought them. All cheap Y tickets sold by BA directly should be upgradeable (and changeable) for a fee. However tickets sold elsewhere (like expedia or via a regular TA) can be completely restricted.
And only tickets bought directly from ba will have the online MMB change/upgrade possibility, even if the fare rules allow it. Only exception is the special OLCI upgrade option, which can be available no matter where the ticket is bought.