I have no issue changing in Houston or Dallas. It's just I am not going to do connections under an hour, but I also don't want to be doing 18-22 hour trips either. Choices seem to be connecting in Miami or Dallas if I fly out of Bradley on AA. I have no loyalty to any airline. I do prefer avoiding flying back through Miami as clearing customs there, even with Global Entry, and reclaiming luggage, and going thru security and having to change terminals seems to take three hours to do it safely. I think my best plan if connections continue to be more dreadful for Cozumel is fly RT thru Cancun and just plan to do some cenote diving on the way back so I stay in Playa for 3-4 nights, and then only have to get to Cancun from Playa instead of having to worry about the ferry as well.