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International route

Cheap flights from Seattle to Reykjavik

Seattle-Tacoma International Airport (SEA) to Keflavík International Airport (KEF). 3,611 miles, connecting flights only.

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SEA to KEF at a glance

Computed from airline schedules and the fares we track for this route. Refreshed several times a day.

Distance
3,611 milesgreat-circle
Typical flight time
7h 5mif flown nonstop
Nonstop airlines
None (connecting only)
Nonstop flights per day
0connections available
Cheapest month
January 2027over the next six months
Best day to fly
Tuesday19% less than Friday
Time difference
7h aheadReykjavik vs Seattle

Seattle to Reykjavik

Round trips from $269

Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 6.

Cheapest month: January 2027

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Seattle to Reykjavik fares by month

Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.

  1. September 2026from Wed, Sep 30$355
  2. October 2026from Tue, Oct 6$321
  3. November 2026from Tue, Nov 17$317
  4. December 2026from Wed, Dec 2$319
  5. January 2027from Wed, Jan 6$269
  6. February 2027from Sat, Feb 6$291

Airlines flying Seattle to Reykjavik

No nonstop service: 4 airlines offer one-stop itineraries.

Connecting options

Hubs where one airline can carry you on both legs, most choices first.

Tips for this route

  • There is no scheduled nonstop between SEA and KEF. Every itinerary connects, most often through OSL, MAN or DUB, so sort results by total travel time rather than price alone.
  • January 2027 is the cheapest month to fly over the next six months, with round trips from $269; September 2026 is the most expensive at $355 and up, a difference of $86 per traveler.
  • Departing on a Tuesday averages 19% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
  • Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
  • Reykjavik is 7 hours ahead of Seattle. Expect to lose 7 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Flying the other way? Reykjavik to SeattleFares, airlines and tips for KEF to SEA.

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Seattle to Reykjavik: common questions

How long is the flight from Seattle to Reykjavik?

There are no nonstop flights, so the trip from Seattle (SEA) to Reykjavik (KEF) takes 7h 5m of flying plus a layover, usually 10h 5m or more door to door across 3,611 miles.

Which airlines fly nonstop from SEA to KEF?

No airline currently flies nonstop between Seattle (SEA) and Reykjavik (KEF). The most common connections are through OSL, MAN and DUB.

What is the cheapest month to fly from Seattle to Reykjavik?

Over the next six months, January 2027 has the lowest round-trip fares from Seattle (SEA) to Reykjavik (KEF), starting at $269 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.

How far in advance should I book Seattle to Reykjavik flights?

Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.

What is the time difference between Seattle and Reykjavik?

Reykjavik is 7 hours ahead of Seattle. SEA is on America/Los Angeles time and KEF on Atlantic/Reykjavik time. Departure and arrival times in search results are always shown in local time at each airport.

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