Originally Posted by
ChrisA330
Fare basis doesn't matter - if there is a fare difference between what you booked at the current fare, you pay.
Good to know, thanks.
Originally Posted by
YQMer
Better off with an airport change on day of departure since it's free (no fare difference, no change fee) and can be confirmed then.
That has implications for upgrades, and it assumes you want a flight on the same day. But it's good to know.