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Cheap flights from Seattle to Reykjavik from $305

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:40 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 35mnonstop
Icelandair Logo
4:50 pm - 5:55 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 05mnonstop
$449Icelandair
Sat, Oct 17 - Wed, Oct 21
Icelandair Logo
3:40 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 35mnonstop
Icelandair Logo
4:50 pm - 5:55 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 05mnonstop
$460Icelandair
Wed, Oct 14 - Sat, Oct 24
Icelandair Logo
3:40 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 35mnonstop
Icelandair Logo
7:45 pm - 8:40 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
7h 55mnonstop
$460Icelandair
Fri, Oct 9 - Tue, Oct 13
Air France Logo
7:15 am - 9:30 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
19h 15m1 stop New York John F Kennedy Intl
Air France Logo
11:25 am - 11:04 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
18h 39m1 stop New York John F Kennedy Intl
$473Air France
Tue, Oct 6 - Fri, Oct 16
Delta Logo
7:15 am - 9:30 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
19h 15m1 stop New York John F Kennedy Intl
Delta Logo
11:25 am - 11:04 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
18h 39m1 stop New York John F Kennedy Intl
$473Delta
Mon, Oct 5 - Fri, Oct 16
Delta Logo
11:05 pm - 9:30 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
27h 25m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl
Delta Logo
11:25 am - 11:04 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
18h 39m1 stop New York John F Kennedy Intl
$478Delta
Mon, Oct 5 - Fri, Oct 16
Icelandair Logo
7:00 pm - 9:25 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
Icelandair Logo
5:00 pm - 6:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 00mnonstop
$494Icelandair
Mon, Oct 12 - Mon, Oct 26
Alaska Airlines Logo
7:00 pm - 9:25 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
Alaska Airlines Logo
7:45 pm - 8:40 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
7h 55mnonstop
$829Alaska Airlines
Sat, Oct 17 - Tue, Oct 20
Alaska Airlines Logo
7:00 pm - 9:25 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
Alaska Airlines Logo
7:45 pm - 8:40 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
7h 55mnonstop
$829Alaska Airlines
Tue, Oct 20 - Fri, Oct 23
Alaska Airlines Logo
7:00 pm - 9:25 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
Alaska Airlines Logo
4:50 pm - 6:00 amKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
20h 10m1 stop Portland
$851Alaska Airlines
Mon, Oct 19 - Wed, Oct 21

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Scandinavian Airlines flights from Seattle to Reykjavik Keflavik Intl Airport

Our best Scandinavian Airlines deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
Scandinavian Airlines
Oct 13
SEA4:00 pmSeattle/Tacoma Intl
34h 30m
1 stop
KEF9:30 amReykjavik Keflavik Intl
Oct 21
KEF11:25 amReykjavik Keflavik Intl
18h 39m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
$622
Scandinavian Airlines
Oct 3
SEA3:55 pmSeattle/Tacoma Intl
17h 50m
1 stop
KEF4:45 pmReykjavik Keflavik Intl
Oct 9
KEF5:35 pmReykjavik Keflavik Intl
27h 10m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$841

Virgin Atlantic flights from Seattle to Reykjavik Keflavik Intl Airport

Our best Virgin Atlantic deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
Virgin Atlantic
Oct 4
SEA6:00 amSeattle/Tacoma Intl
20h 30m
2 stops
KEF9:30 amReykjavik Keflavik Intl
Oct 13
KEF11:25 amReykjavik Keflavik Intl
30h 11m
1 stop
SEA10:36 amSeattle/Tacoma Intl
$598
Virgin Atlantic
Oct 4
SEA6:00 amSeattle/Tacoma Intl
20h 30m
2 stops
KEF9:30 amReykjavik Keflavik Intl
Oct 13
KEF11:25 amReykjavik Keflavik Intl
30h 11m
1 stop
SEA10:36 amSeattle/Tacoma Intl
$599
Virgin Atlantic
Oct 18
SEA7:15 amSeattle/Tacoma Intl
19h 15m
1 stop
KEF9:30 amReykjavik Keflavik Intl
Oct 23
KEF11:25 amReykjavik Keflavik Intl
18h 39m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
$613

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Reykjavik Keflavik Intl Airport that are best for you.

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Depart

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Price

Cheapest round-trip

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Sat 10/17

3:40 pm-6:15 am

Nonstop7h 35m

Reykjavik Keflavik Intl

Wed 10/21

4:50 pm-5:55 pm

Nonstop8h 05m

$449

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Wed 10/14

3:40 pm-6:15 am

Nonstop7h 35m

Reykjavik Keflavik Intl

Sat 10/24

4:50 pm-5:55 pm

Nonstop8h 05m

$460

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 10/9

3:40 pm-6:15 am

Nonstop7h 35m

Reykjavik Keflavik Intl

Tue 10/13

7:45 pm-8:40 pm

Nonstop7h 55m

$460

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Tue 10/6

7:15 am-9:30 am

1 stop19h 15m

Reykjavik Keflavik Intl

Fri 10/16

11:25 am-11:04 pm

1 stop18h 39m

$473

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Mon 10/5

7:15 am-9:30 am

1 stop19h 15m

Reykjavik Keflavik Intl

Fri 10/16

11:25 am-11:04 pm

1 stop18h 39m

$473

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Mon 10/5

11:05 pm-9:30 am

2 stops27h 25m

Reykjavik Keflavik Intl

Fri 10/16

11:25 am-11:04 pm

1 stop18h 39m

$478

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Mon 10/12

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Mon 10/26

5:00 pm-6:00 pm

Nonstop8h 00m

$494
Quickest round-trip

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Sat 10/17

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Tue 10/20

7:45 pm-8:40 pm

Nonstop7h 55m

$829

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Tue 10/20

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Fri 10/23

7:45 pm-8:40 pm

Nonstop7h 55m

$829

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Mon 10/19

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Wed 10/21

4:50 pm-6:00 am

1 stop20h 10m

$851

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from Seattle to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Reykjavik Keflavik Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $538 to $778.
The lowest price recently found on this route was $449.

What is the cheapest month to fly to Reykjavik Keflavik Intl Airport?

The month of May is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from Seattle, with most prices found around $545. If you’re not able to fly to Reykjavik Keflavik Intl Airport in May, then January is your next best option. Flight prices from Seattle to Reykjavik Keflavik Intl Airport during January average around $572.

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from Seattle to Reykjavik Keflavik Intl Airport is on a Wednesday when prices can be found for as low as $631. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Thursday, with ticket prices averaging around $693.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is at noon when flights can be purchased for as low as $577. Flights in the evening are often more expensive with an average ticket price of $691.

What is the cheapest Seattle/Tacoma Intl to Reykjavik Keflavik Intl flight route?

Fly from Seattle/Tacoma Intl to Reykjavik Keflavik Intl for the best Seattle/Tacoma Intl - Reykjavik Keflavik Intl flight prices

How far in advance should I book a flight from Seattle to Reykjavik Keflavik Intl Airport?

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $695 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from Seattle for as low as $538 on momondo.

What cabin class options are available on Seattle to Reykjavik Keflavik Intl Airport flights?

There are 4 cabin classes available to choose from on Seattle to Reykjavik Keflavik Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Reykjavik Keflavik Intl Airport flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Reykjavik Keflavik Intl Airport flight.

How have Seattle to Reykjavik Keflavik Intl Airport flight prices changed over time?

As of September 2026, prices for Seattle to Reykjavik Keflavik Intl Airport flights are approximately 107% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Reykjavik Keflavik Intl Airport (SEA to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Reykjavik Keflavik Intl Airport

Best Price Found

$305

Fastest flight time

7h 25m

Direct flights

Every day
The best one-way flight to Reykjavik Keflavik Intl Airport from Seattle in the past 72 hours is $305. The best round-trip flight deal from Seattle to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $449.
The fastest flight from Seattle to Reykjavik Keflavik Intl Airport takes 7h 25m
Direct flights go from Seattle to Reykjavik Keflavik Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Seattle to Reykjavik Keflavik Intl Airport

  • How far is Seattle/Tacoma Intl to Reykjavik Keflavik Intl by plane?

    The distance between Seattle/Tacoma Intl and Reykjavik Keflavik Intl is about 3599.8 mi. A reasonable flight in good conditions will take 7h 25m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The necessary travel and health documents for your Reykjavik Keflavik Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Reykjavik Keflavik Intl Airport?

  • What is the most popular airline from Seattle to Reykjavik Keflavik Intl Airport?

Best airlines flying from Seattle to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from Seattle to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $424Free CancellationRating
6.9
747 reviews
Search Icelandair flights
Alaska AirlinesPriceFrom $496Free CancellationRating
7.9
12,949 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Seattle to Reykjavik Keflavik Intl Airport

    Alaska Airlines is one of the most popular airlines flying from Seattle to Reykjavik Keflavik Intl Airport, operating 12 flights/week on average for this route. A good Alaska Airlines flight deal for Seattle to Reykjavik Keflavik Intl Airport starts from $496 round-trip, up to an average price of $832. Our users have rated Alaska Airlines at 7.9/10.

  • Icelandair Flights From Seattle to Reykjavik Keflavik Intl Airport

    The best Icelandair deal for Seattle to Reykjavik Keflavik Intl Airport flight tickets found on momondo in the last 72 hours was $424, round-trip. It should be noted that an average Icelandair flight deal for this route in this time was higher, at $646 round-trip. Icelandair operates 10 flights out of Seattle into Reykjavik Keflavik Intl Airport in an average week, so prices vary by time and availability. 747 Icelandair reviews by users on momondo have scored the airline at 6.9/10.

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Hveragerdi
Grindavik
Borgarnes
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Reykjavik?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Reykjavik from Seattle.

Can I find flights from Seattle to Reykjavik with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Reykjavik flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Reykjavik?

Once all potential Seattle to Reykjavik flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Reykjavik right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Reykjavik flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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