Aer Lingus via DealBase discounts round-trip fall flights to Europe, with prices starting from $405.50. That's the lowest price we could find for select routes by $120. Book this travel deal by July 16 for travel from September 1 through October 31. Buy Now Tips On the DealBase landing page, click on "Aer Lingus" in the top line to see this sale; we found lower fares within. We found this price on flights departing on October 1 from Boston, MA (BOS) to Dublin, Ireland (DUB), with return on October 8. All prices, dates, and booking details were valid at the time of publication.
Some of the changes we've made amid the COVID-19 outbreak are likely permanent.