KEF - SEA

$348 Find Cheap Flights from Reykjavik to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reykjavik to Seattle departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Reykjavik to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Reykjavik to Seattle, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Reykjavik to Seattle (KEF-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reykjavik to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reykjavik to Seattle

Mon, Sep 1 - Tue, Sep 9
Icelandair Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
$653Icelandair
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Thu, Aug 28 - Fri, Sep 5
Scandinavian Airlines Logo
11:05 am - 1:50 pmKEF-SEA
33h 45m2 stops
Scandinavian Airlines Logo
4:00 pm - 11:50 pmSEA-KEF
24h 50m1 stop
$691Scandinavian Airlines
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Thu, Aug 28 - Fri, Sep 5
Scandinavian Airlines Logo
5:10 pm - 1:50 pmKEF-SEA
27h 40m1 stop
Scandinavian Airlines Logo
4:00 pm - 11:50 pmSEA-KEF
24h 50m1 stop
$693Scandinavian Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
Icelandair Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
$695Icelandair
Find Deal
Mon, Sep 1 - Tue, Sep 9
Icelandair Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
$697Icelandair
Find Deal
Mon, Sep 1 - Tue, Sep 9
Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
Logo
11:34 pm - 9:45 pmSEA-KEF
15h 11m1 stop
$772
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Mon, Sep 1 - Tue, Sep 9
Logo
7:35 pm - 8:52 amKEF-SEA
20h 17m1 stop
Logo
4:20 pm - 6:25 amSEA-KEF
31h 05m1 stop
$797
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Mon, Sep 1 - Tue, Sep 9
Air France Logo
8:30 am - 8:10 pmKEF-SEA
18h 40m1 stop
Air France Logo
9:25 am - 6:20 amSEA-KEF
13h 55m2 stops
$814Air France
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Fri, Aug 15 - Fri, Aug 22
Air Canada Logo
9:30 am - 6:36 pmKEF-SEA
16h 06m2 stops
Air Canada Logo
7:20 am - 8:20 amSEA-KEF
18h 00m1 stop
$837Air Canada
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Fri, Aug 15 - Fri, Aug 22
Air Canada Logo
9:30 am - 6:36 pmKEF-SEA
16h 06m2 stops
Air Canada Logo
10:00 am - 8:15 amSEA-KEF
15h 15m2 stops
$841Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for Reykjavik to Seattle flights

Get data-powered insights and trends into flights from Reykjavik to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Reykjavik to Seattle?

The average price of all round-trip flights from Reykjavik Keflavik Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Seattle on a Tuesday and more expensive on a Monday. On your return trip to Reykjavik, you should consider flying back on a Wednesday, and avoid Thursdays for better deals.

Find deals

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$348
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Reykjavik to Seattle

When to book flights from Reykjavik to Seattle

Are your dates flexible? Find out the best times to travel from Reykjavik to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reykjavik to Seattle flights

  • What is the cheapest flight from Reykjavik Keflavik Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Reykjavik Keflavik Intl Airport to Seattle was $348 for a one-way ticket and $653 for a round-trip.

  • Do I need a passport to fly between Reykjavik and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Reykjavik and on arrival in Seattle.

  • Which aircraft models fly most regularly from Reykjavik to Seattle?

    The Boeing 757-200 (winglets) is the aircraft model that flies most regularly on the Reykjavik to Seattle flight route.

  • Which airline alliances offer flights from Reykjavik to Seattle?

    oneworld is the only airline alliance operating flights between Reykjavik and Seattle.

  • On which days can I fly direct from Reykjavik to Seattle?

    There are nonstop flights from Reykjavik to Seattle on a daily basis.

  • How does KAYAK find such low prices on flights from Reykjavik to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reykjavik to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reykjavik to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Reykjavik is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reykjavik to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Reykjavik with another airline. Booking your flights between Reykjavik and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reykjavik to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Reykjavik up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Reykjavik Keflavik Intl Airport to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $583 or less one-way.

Prefer to fly direct from Reykjavik to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Reykjavik Keflavik Intl to Seattle/Tacoma Intl.
Find which airlines fly direct from Reykjavik Keflavik Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Reykjavik Keflavik Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Tuesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Wednesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Thursday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Friday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Saturday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Sunday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

See more direct flights

Direct returns

Seattle/Tacoma Intl to Reykjavik Keflavik Intl

Monday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Tuesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Wednesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Thursday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Friday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Saturday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Sunday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

See more direct flights

Reviews of the top airline flying from Reykjavik to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Reykjavik to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reykjavik to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IcelandairOverall score based on 518 reviews
8.0Crew
6.2Food
7.1Boarding
6.9Comfort
7.0Entertainment
Airline reviews

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

4.0 OkayAnonymous, Jul 2025IAD - KEF
Read more Icelandair reviews

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Everything you need to know for your flight from Reykjavik to Seattle

Information on your arrival and departure airports

Reykjavik (KEF)
Seattle (SEA)

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