Originally Posted by
nonesuch flyer
TATL upgrades and lounge access would be my main aim with BA. Sorry but I do not know what "MFU" or "2-4-1s" means? [/COLOR]
"2-4-1s" = companion vouchers based on credit card spend -
http://www.britishairways.com/en-us/...s/credit-cards
"MFU" = "miles for upgrade" i.e. using Avios for upgrades, often very good value for premium economy (WT+) to business on longhauls, also from business to first.
For entrance to ACs or FLs based on Oneworld elite status (not AA) see here -
https://www.aa.com/i18n/travel-info/...nge-access.jsp (scroll down.)