Delta Air Lines Airlines via DealBase discounts Delta Air Lines Roundtrip Fares to Europe, with prices starting from $425.51. (On the DealBase landing page, click on "Delta Airlines" in the top line to see this offer.) That's a $58 drop from our February mention and the lowest price we could find for select routes today by at least $47. This price is valid on flights departing on August 21 from New York, NY, (JFK) with arrival in Zurich, Switzerland, (ZRH) and return on October 3. Book this travel deal by May 9.

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