Fly from Seattle to Reykjavik for $632 round-trip, nonstop, including all taxes, on Icelandair.
As seen below, we found seats departing SEA on Wednesday, October 22, returning from KEF on Wednesday, October 29.
Other dates are also available for travel from October through March, excluding peak holiday periods.
For booking info, see our Fare Details.
Similarly low fares are also available from other departure cities such as Boston $587, Denver $612, New York $587, Washington DC $587, and Toronto $604. Visit our Reykjavik KEF fare page for a complete look at current finds.