Hi

I booked about 6 weeks ago for the family to fly from London to Cancun post xmas.

26 December - LHR / DFW / CUN
5 Jan CUN / DFW / LHR

They have just changed 3 of the 4 flights, so the outbound now arrives at 10:51 pm as opposed to 8:20, with a 4.5 hour connection

And we now leave at 3:30 pm on the 5th as opposed to 4:45 with a 3 hour connection

I have looked online and see that if more than 90 mins then they will rebook, including using another One World carrier.

This is annoying, but it happens ( I have however never had a flight change in 30 years of travelling of more than about 20 minutes, let alone 3 out of 4 flights on one trip!).

My question is if the flights I choose are cheaper will AA refund the difference? I notice that through Travel Up I can pay £1000 in total less. I suppose I could ask then to cancel the lot, but a refund would be simpler

AA let me choose seats ( BA charge!) and I don't know if a travel booking would still allow that?

Thanks