Originally Posted by
Sam - DFW
then why are flights on a given day between city pairs priced differently?
They don't start out that way. You are overlooking the issue of supply and demand. Flights on a given day between given points are loaded with the same prices/fare buckets, including deep discount fares. As the seats begin to sell, certain buckets sell out. This is what happened to you. You booked a flight that other people booked before you and grabbed the cheapest seats.
You didn't purchase a "premium" flight and then get demoted to an inferior flight. (IMHO, this would be an apt description if you paid for F on an JFK-LAX transcon, and ended up on AE flying LGA-ORD, then Y ORD-LAX).
And in the interest of fairness, if AA were to refund your money, then the following would also be necessary:
You have a choice of Flight A (6:00 am departure) for 200.00 and Flight B (8:30 am departure) for 350.00, you don't want to get up at 4:00 am but you still book flight A b/c it is cheaper. It gets canceled and AA rebooks you on Flight B - the more expensive flight - so you then owe AA $150.00.