Originally Posted by
Yoshi212
If you didn't have US preclearance to go through this wouldn't be too bad but with that I think your changes are slim to none.
The check-in cutoff for AA at DUB is 75 minutes, or 08:40 for a 09:55 departure. This allows for immigration. This would allow 30 minutes to claim bags, change terminals, and check in, which is risky.