Originally Posted by
HerpaYvr
Change that as it's always a pain and usually too late after the fact. If the system (AC It Rocks
) wants you to pay for a seat, its a big O TANGO! But Flex is flex no matter what the specific bucket!
I'm not sure that's true. Domestic Tango fares are clearly listed as N,G,P,E,A (and O to the US). Internationally it's N,G,P,E,A,L,T,K. It's the bucket that counts, nothing else. The fact that you can select a seat on a Tango leg for free is the IT glitch.
I believe that AC will allow you to up-fare without paying a change fee. The problem is that you're unlikely to be able to up-fare just the Tango legs depending on how it's booked.