Aer Lingus has a low fare to Dublin with the option to fly United domestic to Newark EWR and Aer Lingus transatlantic to Dublin or fly British Airways to London LHR and transfer to Aer Lingus for the one hour flight to Dublin. Aer Lingus/United will get you there for $561 to $612 for departures from September to January 19, 2017, then fares rise by $50 to $60.
Aer Lingus/United
Atlanta ATL – Newark EWR – Dublin DUB – Newark EWR – Atlanta ATL
$561.02 round trip Sat Oct 1 – Mon Oct 10
You can even combine UA one direction and BA the other for $584. Aer Lingus has deals with both carriers.
Aer Lingus/United/British Airways
Atlanta ATL – Newark EWR (UA) – Dublin DUB (FI-Aer Lingus) – London LHR (FI) – Atlanta ATL (BA)
$584.13 round trip Sun Sep 11 – Sat Sep 17
British Airways is $632 when flying both ways on BA.
Aer Lingus/British Airways
Atlanta ATL – London LHR (BA) – Dublin DUB (FI) – London LHR (FI) – Atlanta ATL (BA)
$631.89 round trip Wed Sep 7 – Sat Sep 17
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