Originally Posted by
Zorak
That would work; you could also use your existing gift card to buy some intermediate-valued ticket, and then change that ticket to the one you actually want to fly. If one or both of those steps involves a/c of $250 or below, you're good to go.
I will buy $263 electronic GC and use it with my $100 GC totaling $363 and remaining $199 should go to my AMEX platinum... that way I get the less than $200 additional charge for the credit ;-)