Aer Lingus via DealBase offers Aer Lingus Roundtrip Flights to Europe with prices starting at $486.20. (On the DealBase landing page, click on "Aer Lingus" in the top line to see this sale.) That's $10 under our mention from last week and the lowest price we could find for select routes now by at least $24. This price is valid on flights departing on September 26 from Boston, MA, (BOS) with arrival in Dublin, Ireland, (DUB) and return on October 10. This sale includes routes to Barcelona, Spain, (BCN); Paris, France, (CDG); Amsterdam, Holland, (AMS); and more. Book this travel deal by June 20 for travel from September 10 through October 31.

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