Aer Lingus via DealBase offers with prices starting at $344.19. (On the DealBase landing page, click on "Aer Lingus" in the top line to see this sale.) That's the lowest price we've seen for roundtrip flights on Aer Lingus and the best deal for select routes today by at least $112. This price is valid on flights from Hartford, CT, (BDL) with arrival in Dublin, Ireland, (DUB) departing on May 1 and return on May 8. Book this travel deal by April 25 for travel through June 30.

All prices, dates, and booking details were valid at the time of publication.