Amex Plat Companion tickets and upgrades with miles
I've laways considered the Amex companion upgrades a benefit I would never take advantage of as I very rarely purchase 'full' fare, traditionally always buying discount tickets well ahead of a well planned holiday.
Anyway I've started buying more expnsive fares so I can use my accumulated miles to upgrade these tickets to business class. Whenever I do this I am travelling with my girlfriend so am buying two tickets.
Question is, can I save some $$$ taking advantage of the 2 for 1 on full fare tickets.
To look at a recent scenario.....
Just paid about £1200 for 2 x United Airlines 'B' class (treated as full fare) tix EDI-SFO-RNO. Could I have bought these cheaper through the Amex scheme and are the resulting tickets upgradeable to business using 10,000 miles each way?