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Cheap flights from Seattle to Reykjavik from $181

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
2:35 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 00mnonstop
$181Icelandair
Fri, Jan 15 - Mon, Jan 18
Icelandair Logo
2:35 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 00mnonstop
$181Icelandair
Thu, Jan 14 - Mon, Jan 18
Icelandair Logo
12:41 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
9h 34m1 stop Portland
Icelandair Logo
5:00 pm - 5:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 00mnonstop
$411Icelandair
Fri, Jan 15 - Mon, Jan 18
Icelandair Logo
6:57 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
27h 18m1 stop Portland
Icelandair Logo
5:00 pm - 5:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
8h 00mnonstop
$422Icelandair
Thu, Jan 14 - Mon, Jan 18
Lufthansa Logo
2:30 pm - 10:00 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
11h 30m1 stop Chicago O'Hare Intl
Lufthansa Logo
12:00 pm - 11:07 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
19h 07m1 stop Chicago O'Hare Intl
$475Lufthansa
Fri, Nov 13 - Thu, Nov 19
United Airlines Logo
5:05 am - 10:00 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
20h 55m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
12:00 pm - 9:50 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
41h 50m2 stops Chicago O'Hare Intl Los Angeles
$483United Airlines
Fri, Nov 13 - Thu, Nov 19
United Airlines Logo
2:30 pm - 10:00 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
11h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
12:00 pm - 3:32 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
35h 32m1 stop Chicago O'Hare Intl
$483United Airlines
Fri, Nov 13 - Thu, Nov 19
Alaska Airlines Logo
10:23 am - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
11h 52m1 stop Portland
Alaska Airlines Logo
4:50 pm - 11:00 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
14h 10m1 stop Portland
$840Alaska Airlines
Wed, Feb 10 - Sun, Feb 14
Alaska Airlines Logo
7:46 am - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
14h 29m1 stop Portland
Alaska Airlines Logo
4:50 pm - 10:28 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
13h 38m1 stop Portland
$840Alaska Airlines
Fri, Feb 5 - Sun, Feb 7
Alaska Airlines Logo
12:41 pm - 6:15 amSEA  Seattle/Tacoma Intl-KEF Reykjavik Keflavik Intl
9h 34m1 stop Portland
Alaska Airlines Logo
4:50 pm - 10:28 pmKEF  Reykjavik Keflavik Intl-SEA Seattle/Tacoma Intl
13h 38m1 stop Portland
$840Alaska Airlines
Fri, Feb 5 - Sun, Feb 7

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United Airlines flights from Seattle to Reykjavik Keflavik Intl Airport

Our best United Airlines deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
United Airlines
Nov 13
SEA5:05 amSeattle/Tacoma Intl
20h 55m
2 stops
KEF10:00 amReykjavik Keflavik Intl
Nov 19
KEF12:00 pmReykjavik Keflavik Intl
35h 32m
1 stop
SEA3:32 pmSeattle/Tacoma Intl
$483
United Airlines
Nov 13
SEA2:30 pmSeattle/Tacoma Intl
11h 30m
1 stop
KEF10:00 amReykjavik Keflavik Intl
Nov 19
KEF12:00 pmReykjavik Keflavik Intl
35h 32m
1 stop
SEA3:32 pmSeattle/Tacoma Intl
$484
United Airlines
Nov 13
SEA2:30 pmSeattle/Tacoma Intl
11h 30m
1 stop
KEF10:00 amReykjavik Keflavik Intl
Nov 19
KEF12:00 pmReykjavik Keflavik Intl
35h 32m
1 stop
SEA3:32 pmSeattle/Tacoma Intl
$485

Icelandair flights from Seattle to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
Jan 14
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Jan 18
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$181
Icelandair
Jan 15
SEA12:41 pmSeattle/Tacoma Intl
9h 34m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Jan 18
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$411
Icelandair
Jan 14
SEA6:57 pmSeattle/Tacoma Intl
27h 18m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Jan 18
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$422

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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Route

Depart

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Price

Cheapest round-trip
Quickest round-trip

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 1/15

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 1/18

5:00 pm-5:00 pm

Nonstop8h 00m

$181

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Thu 1/14

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 1/18

5:00 pm-5:00 pm

Nonstop8h 00m

$181

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 1/15

12:41 pm-6:15 am

1 stop9h 34m

Reykjavik Keflavik Intl

Mon 1/18

5:00 pm-5:00 pm

Nonstop8h 00m

$411

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Thu 1/14

6:57 pm-6:15 am

1 stop27h 18m

Reykjavik Keflavik Intl

Mon 1/18

5:00 pm-5:00 pm

Nonstop8h 00m

$422

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 11/13

2:30 pm-10:00 am

1 stop11h 30m

Reykjavik Keflavik Intl

Thu 11/19

12:00 pm-11:07 pm

1 stop19h 07m

$475

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 11/13

5:05 am-10:00 am

2 stops20h 55m

Reykjavik Keflavik Intl

Thu 11/19

12:00 pm-9:50 pm

2 stops41h 50m

$483

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 11/13

2:30 pm-10:00 am

1 stop11h 30m

Reykjavik Keflavik Intl

Thu 11/19

12:00 pm-3:32 pm

1 stop35h 32m

$483

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Wed 2/10

10:23 am-6:15 am

1 stop11h 52m

Reykjavik Keflavik Intl

Sun 2/14

4:50 pm-11:00 pm

1 stop14h 10m

$840

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 2/5

7:46 am-6:15 am

1 stop14h 29m

Reykjavik Keflavik Intl

Sun 2/7

4:50 pm-10:28 pm

1 stop13h 38m

$840

SeattleReykjavik

SEA Seattle/Tacoma Intl - KEF Reykjavik Keflavik Intl

SEAKEF

Seattle/Tacoma Intl

Fri 2/5

12:41 pm-6:15 am

1 stop9h 34m

Reykjavik Keflavik Intl

Sun 2/7

4:50 pm-10:28 pm

1 stop13h 38m

$840

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 $592 to $1,020.
The lowest price recently found on this route was $181.

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 $652. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Friday, with ticket prices averaging around $712.

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 $628. Flights in the afternoon are often more expensive with an average ticket price of $708.

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 $689 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 $522 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 8% 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 November 2026, prices for Seattle to Reykjavik Keflavik Intl Airport flights are approximately 0% cheaper 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

$404

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 $404. The best round-trip flight deal from Seattle to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $181.
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 $426Free CancellationRating
6.9
766 reviews
Search Icelandair flights
Alaska AirlinesPriceFrom $496Free CancellationRating
7.9
13,137 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 4 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 $848. 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 $426, round-trip. It should be noted that an average Icelandair flight deal for this route in this time was higher, at $649 round-trip. Icelandair operates 1 flight out of Seattle into Reykjavik Keflavik Intl Airport in an average week, so prices vary by time and availability. 766 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
Selfoss
Keflavik
Hella
Hveragerdi
Borgarnes
Grindavik
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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