All airlines change flight times (as well as make last minute terminal changes). In Dec I checked in online about 24 hours prior to flight time like I was supposed to. My boarding pass said my plane would be departing out of terminal C at DFW (like American almost always does). When we arrived the terminal had changed to one on the other side of the airport. People were frantically trying to catch the trolley thing over there or if their rides hadn't already left were running to the cars. There was quite a few empty seats on that plane (that online showed to be totally full). I'm betting some people missed the plane.
I have an aunt here visiting from West Virginia. I got an e-mail from American Airlines a few days ago that her returning flight had been moved up 4 hours and 45 minutes. (Note-we paid for her ticket, so thankfully the e-mail came to my computer, but what if we hadn't?--the e-mail would have went to her computer and we wouldn't have known until we checked her in online a few hours before her flight.) She is a diabetic and we specifically booked her flight for mid morning so she could eat a good breakfast before she left. Now we will be in transit during her regular meal time. We live well over an hour from the airport.
Anyway airlines make changes and we just have to roll with the punches. My mom and I are flying Airtran to Florida (the morning after my aunt leaves to go home) and am hoping they don't change our flight times. Like the OP we booked the earliest flight out (7:00am) and the latest flight back (arriving DFW 9:54pm), because we want to spend as much time as possible in the parks. However if the flight times change, they change and we make schedule adjustments.
I have an aunt here visiting from West Virginia. I got an e-mail from American Airlines a few days ago that her returning flight had been moved up 4 hours and 45 minutes. (Note-we paid for her ticket, so thankfully the e-mail came to my computer, but what if we hadn't?--the e-mail would have went to her computer and we wouldn't have known until we checked her in online a few hours before her flight.) She is a diabetic and we specifically booked her flight for mid morning so she could eat a good breakfast before she left. Now we will be in transit during her regular meal time. We live well over an hour from the airport.
Anyway airlines make changes and we just have to roll with the punches. My mom and I are flying Airtran to Florida (the morning after my aunt leaves to go home) and am hoping they don't change our flight times. Like the OP we booked the earliest flight out (7:00am) and the latest flight back (arriving DFW 9:54pm), because we want to spend as much time as possible in the parks. However if the flight times change, they change and we make schedule adjustments.