Fly from Seattle to Reykjavik for $578 round-trip, nonstop, including all taxes, on Icelandair.

We found seats departing SEA on February 11, and returning from KEF on February 19. Other dates also available for travel through March.

For booking info, see our Fare Details.

All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.

More Stories You'll Love