I purchased 4 RT tickets months ago for summer travel It was a short Friday-Sunday DCA-FLL trip for Me and my wife, plus my parents. Just checked and got the itinerary changed/accept changes button. Since booking the trip my parents are thinking of spending a couple more days down in FLL but of course they don't want to pay the $150 change fee. I can I use this change of itinerary to change the dates for 2 out of the 4 tickets. I doubt it very much but thought I'd ask here first .