Originally Posted by
FWAAA
Takes several minutes to clear Irish immigration and wait in check-in line upstairs to get return boarding pass. Several more minutes to clear security and then sometimes a lengthy wait (15-30 min) for US immigration pre-clearance (when you return to ORD you go straight to customs since you've already cleared immigration). You should have plenty of time to relax before boarding.

Not sure about the above advice guys....Certainly, if your AA flight arrives into Terminal C, then you should clear Irish Imm in about 10 mins max (assuming that the Etihad flight from Abu Dhabi is not arr at the same time as you) other wise 30 mins is possible, Exit the baggage hall at Dublin go upstairs and through security again..should be fairly quick. The AA ORD flight uses Terminal C about 75% of the time, but the other 25% it uses Terminal B, this is where almost all the EI transatlantics arrive into and congestion is a major problem here
If you do book the flight...PM me