That's the lowest price we could find for select routes on comparable 3-star carriers by $66. Buy Now at DealBase Tips On the DealBase landing page, click "Iceland Air" in the top line to see this sale. We found this price on flights departing on January 14, 2020, from Seattle, WA (SEA) to Copenhagen, Denmark (CPH), with return on January 21, 2020. Book this travel deal by November 5 for flights from January 13, 2020, through March 31, 2020. All prices, dates, and booking details were valid at the time of publication.