Did you check the schedules to see if there are any more favorable flights that day? If yes, AA will generally go miles out of their way to accommodate their passengers when there is such a significant change in a booking.

And for what it's worth, there's no rhyme or reason to when and why they cancel flights. For two years running they cancelled April flights that were very heavily booked as early as November, one time booking us on flights that couldn't possibly work, but in each case when I called them, they booked me on other flights that were more to my liking, even allowing me to change my departure airport, at the same price I had originally booked and in the same seats. We had booked Business/first on the n/s and they put us in Business/first on both of the connecting legs we ended up on.

It's very annoying and I hope they're able to do something to make the situation a little better for you. <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" /> <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" />