Hi,I have a general change fee question.
I know that all major carriers charge around $100 as a change fee plus any applicable fare difference if you want to change your travel dates.My query is-Can you change the return portion of the trip after you have taken the departing flight?And,if so,how do they calculate the fare difference - is it based as a one way fare because they do not have the original departure date to calculate the round trip fare?
Thanks.