KEF - SEA

$381 Find Cheap Flights from Reykjavik to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reykjavik to Seattle departing on 12/4. 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, 0 bags

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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Flight 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, Dec 4 - Wed, Dec 10
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
$381Icelandair
Find Deal
Thu, Nov 27 - Thu, Dec 4
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
$385Icelandair
Find Deal
Thu, Dec 4 - Wed, Dec 10
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
$387Icelandair
Find Deal
Thu, Dec 4 - Wed, Dec 10
Multiple Airlines Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
Multiple Airlines Logo
10:09 am - 6:30 amSEA-KEF
12h 21m1 stop
$655Multiple Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
Multiple Airlines Logo
4:55 pm - 10:30 pmKEF-SEA
13h 35m1 stop
Multiple Airlines Logo
7:55 am - 6:05 amSEA-KEF
14h 10m1 stop
$658Multiple Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
British Airways Logo
11:45 am - 11:30 amKEF-SEA
31h 45m1 stop
British Airways Logo
6:50 pm - 10:55 amSEA-KEF
32h 05m1 stop
$1,018British Airways
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Thu, Dec 4 - Wed, Dec 10
Finnair Logo
9:45 am - 11:30 amKEF-SEA
33h 45m2 stops
Finnair Logo
6:50 pm - 9:15 amSEA-KEF
30h 25m2 stops
$1,087Finnair
Find Deal
Thu, Dec 4 - Wed, Dec 10
American Airlines Logo
11:45 am - 11:30 amKEF-SEA
31h 45m1 stop
American Airlines Logo
1:28 pm - 10:55 amSEA-KEF
37h 27m2 stops
$1,091American Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
American Airlines Logo
11:45 am - 11:30 amKEF-SEA
31h 45m1 stop
American Airlines Logo
9:00 am - 10:55 amSEA-KEF
41h 55m2 stops
$1,092American Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
Finnair Logo
9:45 am - 11:30 amKEF-SEA
33h 45m2 stops
Finnair Logo
6:50 pm - 9:15 amSEA-KEF
30h 25m2 stops
$1,116Finnair
Find Deal

Everything you should know

Top airlines
Icelandair
Cheapest • from $381 (round-trip)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$381
Icelandair
Thu 12/4Wed 12/10
KEF - SEA • Non-stop
Cheapest one-way
$489
Typical prices: $443-$716
Icelandair
Wed 11/5
KEF - SEA • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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 Monday and more expensive on a Saturday. 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
Cheapest flight$381
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 6% 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 $489 for a one-way ticket and $381 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.

  • 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 $647 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

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Direct returns

Seattle/Tacoma Intl to Reykjavik Keflavik Intl

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

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.
7.1
IcelandairOverall score based on 562 reviews
6.2Food
7.2Boarding
6.9Comfort
7.0Entertainment
8.1Crew
Airline reviews

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

8.0 ExcellentAnonymous, Oct 2025KEF - SEA
Read more Icelandair reviews

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

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.

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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