Norwegian Air via DealBase offers 1-way flights to Europe, with prices starting from $100. That's the best price we could find for select routes on comparable carriers by $445. Book this travel deal by June 2 for flights from September 1 to November 30. Buy Now Tips On the DealBase landing page, click on Norwegian in the top line/paragraph to see this sale. We found this price on flights departing on October 16 from New York, NY (SWF), with arrival in Dublin, Ireland (DUB). All prices, dates, and booking details were valid at the time of publication.