Originally Posted by
littlefish
What pre-planned reasons do FTers use the semi-flex for?
I can't think of
any reason that would induce me to book semi-flex
EDIT: just checked prices, and on my most frequent route, the cheapest semi-flex costs more than twice the cheapest non-flex. So if I needed a back-up plan, it would be cheaper to book a second non-flex ticket than upgrade to semi-flex.