KEF - SEA

$291 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 7/3. 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

Thu, Jul 3 - Sun, Jul 13
Logo
9:35 am - 7:21 pmKEF-SEA
16h 46m1 stop
Logo
5:30 pm - 4:55 amSEA-KEF
28h 25m2 stops
$600
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Thu, Jul 3 - Sun, Jul 13
Logo
9:35 am - 10:16 pmKEF-SEA
19h 41m2 stops
Logo
5:30 pm - 4:55 amSEA-KEF
28h 25m2 stops
$606
Find Deal
Thu, Jul 3 - Sun, Jul 13
Logo
9:35 am - 10:16 pmKEF-SEA
19h 41m3 stops
Logo
5:30 pm - 4:55 amSEA-KEF
28h 25m2 stops
$615
Find Deal
Thu, Sep 18 - Mon, Sep 29
Scandinavian Airlines Logo
10:20 am - 2:00 pmKEF-SEA
34h 40m1 stop
Scandinavian Airlines Logo
2:00 pm - 11:50 pmSEA-KEF
26h 50m2 stops
$652Scandinavian Airlines
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Fri, Sep 26 - Fri, Oct 17
Icelandair Logo
4:50 pm - 5:50 pmKEF-SEA
8h 00mnonstop
Icelandair Logo
3:45 pm - 6:15 amSEA-KEF
7h 30mnonstop
$667Icelandair
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Fri, Sep 26 - Fri, Oct 17
Scandinavian Airlines Logo
7:40 am - 11:24 pmKEF-SEA
22h 44m2 stops
Scandinavian Airlines Logo
4:20 pm - 4:20 pmSEA-KEF
17h 00m1 stop
$685Scandinavian Airlines
Find Deal
Fri, Aug 1 - Thu, Aug 7
Icelandair Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
$693Icelandair
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Fri, Aug 1 - Wed, Aug 6
United Airlines Logo
11:00 am - 9:23 pmKEF-SEA
17h 23m2 stops
United Airlines Logo
12:20 am - 8:30 amSEA-KEF
25h 10m1 stop
$819United Airlines
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Fri, Aug 1 - Thu, Aug 7
United Airlines Logo
12:00 pm - 6:58 pmKEF-SEA
13h 58m1 stop
United Airlines Logo
1:55 pm - 8:30 amSEA-KEF
11h 35m1 stop
$823United Airlines
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Wed, Sep 3 - Sat, Sep 13
Air France Logo
8:30 am - 4:38 pmKEF-SEA
15h 08m2 stops
Air France Logo
8:25 am - 6:20 amSEA-KEF
14h 55m2 stops
$839Air France
Find Deal
Useful Info

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 seasonSeptember
High seasonAugust
Cheapest flight$291
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 7% 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 $291 for a one-way ticket and $600 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 Airbus A321neo 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 $554 or less one-way and $659 or less round-trip.

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 502 reviews
7.1Boarding
6.2Food
6.9Comfort
7.0Entertainment
8.0Crew
Airline reviews

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..

2.0 MediocreKelly, Jun 2025KEF - ORD
Read more Icelandair reviews

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.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

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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