I'm planning on booking this ticket on an NYC-STL-ORD-DUB-ORD-NYC with no overnights for a grand total of $455 (around 10K EQM), not the absolute lowest $$$ for the point total, but it gets me what I need (EXP) for less than $500 bucks, no overnight stays anywhere, and a departure one morning and a return by the evening of the following day.

The question is, if I miss the turnaround, is AA willing to put me on an AA/EI codeshare to get me back? I figure if so then there's a DUB/LHR that can be done right after, if not then they can put me on a DUB-BOS-NYC or if I'm feeling up for it DUB-BOS-ORD-NYC.

Anyone have experience on rebooking for a missed MR turnaround in DUB?

Also forgot to note (not sure about this) but if the inbound DUB is delayed and they're using the same equipment on the turnaround then I'm in good shape assuming I can turnaround faster than they can turn the airplane around, right?