Question about WGA+, specifically, the same day change benefit...
My daughter and I are looking for flights to Boston in June and the (cheapest/fastest) return flight is at 5:30am.  The hotel we are staying at is 30-40 minutes from the airport, plus we'd have a rental car to drop off.  I would prefer not to take that flight, but the only other option is a flight at 12:30 and it is over $100/pp more.  If I opted for the WGA+ fare, would we be able to make a same-day (what is that? after midnight??) switch to the 12:30 flight, if there are still available seats?  And if so, would I have to pay the difference in price?  If yes, then I am not sure what the benefit is of the "same day change" benefit.  Couldn't I just cancel and rebook the flight using the flight credit?  Or is it not immediate?  I usually book with points so paying OOP is totally new to me.