Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Reykjavik Keflavik Intl Airport from $243

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Reykjavik Keflavik Intl Airport departing on 7/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Seattle to Reykjavik

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Reykjavik.
Scandinavian Airlines Logo
4:20 pm - 4:20 pmSEA-KEF
17h 00m1 stop
Scandinavian Airlines Logo
5:10 pm - 2:00 pmKEF-SEA
27h 50m1 stop
$442Scandinavian Airlines
Find Deal
dom., sep. 21 - jue., oct. 2
Scandinavian Airlines Logo
4:20 pm - 4:20 pmSEA-KEF
17h 00m1 stop
Scandinavian Airlines Logo
5:10 pm - 2:00 pmKEF-SEA
27h 50m1 stop
$477Scandinavian Airlines
Find Deal
dom., sep. 21 - jue., oct. 2
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
Icelandair Logo
10:30 am - 11:25 amKEF-SEA
7h 55mnonstop
$502Icelandair
Find Deal
lun., may. 26 - mar., jun. 3
Icelandair Logo
11:30 pm - 2:00 pmSEA-KEF
7h 30mnonstop
Icelandair Logo
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$503Icelandair
Find Deal
vie., jul. 25 - lun., ago. 11
WestJet Logo
7:05 am - 8:15 amSEA-KEF
18h 10m1 stop
WestJet Logo
9:35 am - 6:38 pmKEF-SEA
16h 03m1 stop
$526WestJet
Find Deal
mar., ago. 12 - lun., ago. 18
WestJet Logo
2:05 pm - 8:15 amSEA-KEF
11h 10m1 stop
WestJet Logo
9:35 am - 12:58 pmKEF-SEA
10h 23m1 stop
$535WestJet
Find Deal
mar., ago. 19 - lun., ago. 25
Delta Logo
6:00 am - 6:20 amSEA-KEF
17h 20m1 stop
Delta Logo
8:45 am - 8:30 pmKEF-SEA
18h 45m1 stop
$560Delta
Find Deal
dom., sep. 14 - mié., oct. 1
Delta Logo
11:15 am - 9:30 amSEA-KEF
15h 15m1 stop
Delta Logo
11:25 am - 7:29 pmKEF-SEA
15h 04m1 stop
$562Delta
Find Deal
jue., sep. 18 - mié., oct. 1
Air Canada Logo
10:00 am - 8:15 amSEA-KEF
39h 15m2 stops
Air Canada Logo
9:50 am - 1:01 pmKEF-SEA
34h 11m2 stops
$569Air Canada
Find Deal
dom., ago. 17 - mar., ago. 26
Air Canada Logo
10:00 am - 8:10 amSEA-KEF
15h 10m2 stops
Air Canada Logo
9:50 am - 10:16 pmKEF-SEA
19h 26m2 stops
$612Air Canada
Find Deal
jue., ago. 14 - mar., ago. 26

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
Jul 3
SEA10:58 pmSeattle/Tacoma Intl
27h 32m
1 stop
KEF9:30 amReykjavik Keflavik Intl
Jul 7
KEF9:30 amReykjavik Keflavik Intl
34h 27m
1 stop
SEA12:57 pmSeattle/Tacoma Intl
Virgin Atlantic
May 1
SEA10:59 pmSeattle/Tacoma Intl
27h 31m
1 stop
KEF9:30 amReykjavik Keflavik Intl
May 7
KEF11:25 amReykjavik Keflavik Intl
15h 58m
1 stop
SEA8:23 pmSeattle/Tacoma Intl

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
Aug 17
SEA12:10 pmSeattle/Tacoma Intl
13h 05m
1 stop
KEF8:15 amReykjavik Keflavik Intl
Sep 3
KEF10:00 amReykjavik Keflavik Intl
33h 58m
2 stops
SEA12:58 pmSeattle/Tacoma Intl
United Airlines
Aug 2
SEA12:20 amSeattle/Tacoma Intl
23h 40m
2 stops
KEF7:00 amReykjavik Keflavik Intl
Aug 10
KEF9:50 amReykjavik Keflavik Intl
37h 03m
2 stops
SEA3:53 pmSeattle/Tacoma Intl
United Airlines
Sep 2
SEA11:54 pmSeattle/Tacoma Intl
24h 06m
2 stops
KEF7:00 amReykjavik Keflavik Intl
Sep 11
KEF12:00 pmReykjavik Keflavik Intl
17h 59m
2 stops
SEA10:59 pmSeattle/Tacoma Intl

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 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 $686. If you’re not able to fly to Reykjavik Keflavik Intl Airport in May, then April is your next best option. Flight prices from Seattle to Reykjavik Keflavik Intl Airport during April average around $695.

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 Tuesday when prices can be found for as low as $676. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Friday, with ticket prices averaging around $752.

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 in the morning when flights can be purchased for as low as $533. Flights in the afternoon are often more expensive with an average ticket price of $745.

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 to Reykjavik Keflavik Intl Airport?

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from Seattle when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $758 when searching 19 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 $632 on momondo.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Reykjavik Keflavik Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of April 2025, prices for Seattle to Reykjavik Keflavik Intl Airport flights are approximately 2% 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

$243

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 $243. The best round-trip flight deal from Seattle to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $442.
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.

  • 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
DeltaPriceFrom $417Free CancellationRating
8.0
7,927 reviews
Search Delta flights
Air CanadaPriceFrom $454Free CancellationRating
7.0
9,228 reviews
Search Air Canada flights
IcelandairPriceFrom $528Free CancellationRating
7.0
484 reviews
Search Icelandair flights
  • Icelandair Flights From Seattle to Reykjavik Keflavik Intl Airport

    Icelandair is one of the most popular airlines flying from Seattle to Reykjavik Keflavik Intl Airport, operating 13 flights/week on average for this route. A good Icelandair flight deal for Seattle to Reykjavik Keflavik Intl Airport starts from $528 round-trip, up to an average price of $761. Our users have rated Icelandair at 7.0/10.


Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Grindavik

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.


An easier way to manage your Reykjavik Keflavik Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
sáb. 5/3
sáb. 5/10

Find better results for your trip to Reykjavik