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Cheap flights from Seattle to Reykjavik Keflavik Intl Airport from $343

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 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Reykjavik

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Reykjavik that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Reykjavik.

Cheap last minute flights

Planning a quick getaway from Seattle to Reykjavik? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Reykjavik, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Reykjavik

Find recent round-trip train or bus tickets from Seattle to Reykjavik.

All round-trip flight deals from Seattle to Reykjavik

The cheapest plane tickets from Seattle to Reykjavik found on KAYAK recently.
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$484Icelandair
Find Deal
Sun, Feb 2 - Tue, Feb 11
3:45 pm - 4:45 amSEA-KEF
29h 00m1 stop
4:00 pm - 9:59 pmKEF-SEA
36h 59m1 stop
Tue, Mar 4 - Tue, Mar 11
7:50 pm - 10:45 amSEA-KEF
31h 55m1 stop
11:45 am - 5:55 pmKEF-SEA
37h 10m1 stop
$525British Airways
Find Deal
Tue, Mar 18 - Tue, Mar 25
6:50 pm - 10:50 amSEA-KEF
32h 00m1 stop
11:45 am - 11:20 amKEF-SEA
31h 35m1 stop
$536British Airways
Find Deal
Mon, Feb 3 - Mon, Feb 10
6:50 pm - 12:10 amSEA-KEF
22h 20m1 stop
12:25 am - 12:25 pmKEF-SEA
19h 00m1 stop
$550Lufthansa
Find Deal
Wed, Apr 2 - Mon, Apr 7
7:15 am - 9:30 amSEA-KEF
19h 15m1 stop
11:25 am - 10:34 pmKEF-SEA
18h 09m1 stop
$576Delta
Find Deal
Wed, Apr 2 - Tue, Apr 8
11:15 pm - 9:30 amSEA-KEF
27h 15m2 stops
11:25 am - 11:59 pmKEF-SEA
19h 34m2 stops
$590Delta
Find Deal
Mon, May 26 - Mon, Jun 2
6:50 pm - 12:10 amSEA-KEF
22h 20m1 stop
12:25 am - 7:01 pmKEF-SEA
25h 36m2 stops
$612Lufthansa
Find Deal
Wed, Apr 2 - Mon, Apr 7
2:55 pm - 8:35 amSEA-KEF
34h 40m2 stops
10:00 am - 7:41 pmKEF-SEA
40h 41m2 stops
$718Air Canada
Find Deal
Wed, Jun 18 - Mon, Jun 23
2:55 pm - 8:35 amSEA-KEF
58h 40m2 stops
10:00 am - 11:16 amKEF-SEA
32h 16m1 stop
$724Air Canada
Find Deal
Mon, Jun 2 - Mon, Jun 16
3:39 pm - 8:15 amSEA-KEF
33h 36m2 stops
$343WestJet
Find Deal
Sat, May 17
3:15 pm - 11:55 pmSEA-KEF
24h 40m2 stops
Thu, Mar 6
7:00 pm - 9:25 amSEA-KEF
7h 25mnonstop
$445Icelandair
Find Deal
Tue, May 20
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
$452Icelandair
Find Deal
Thu, Mar 6
5:45 am - 8:35 amSEA-KEF
19h 50m2 stops
$489Air Canada
Find Deal
Mon, Jul 14
7:32 pm - 8:35 amSEA-KEF
30h 03m3 stops
$522United Airlines
Find Deal
Mon, Jul 14
12:55 pm - 8:30 amSEA-KEF
36h 35m3 stops
$528United Airlines
Find Deal
Tue, May 20
7:15 pm - 8:35 amSEA-KEF
30h 20m2 stops
$543Air Canada
Find Deal
Fri, Jul 11
12:40 am - 7:00 amSEA-KEF
23h 20m1 stop
$555Delta
Find Deal
Sun, Jul 13
12:40 am - 7:00 amSEA-KEF
23h 20m1 stop
$565Delta
Find Deal
Thu, Jul 10
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$671Icelandair
Find Deal
Sun, Jan 26 - Sat, Feb 1
7:38 pm - 6:05 amSEA-KEF
26h 27m1 stop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$824Icelandair
Find Deal
Sun, Jan 26 - Sat, Feb 1
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$946Icelandair
Find Deal
Sat, Jan 25 - Thu, Jan 30
3:10 pm - 1:55 pmSEA-KEF
38h 45m2 stops
2:20 pm - 1:20 pmKEF-SEA
31h 00m2 stops
$980Lufthansa
Find Deal
Sun, Jan 26 - Sat, Feb 1
6:50 pm - 10:55 amSEA-KEF
32h 05m1 stop
11:50 am - 12:42 pmKEF-SEA
56h 52m2 stops
$1,058British Airways
Find Deal
Sun, Jan 26 - Sat, Feb 1
6:50 pm - 10:55 amSEA-KEF
32h 05m1 stop
11:40 am - 11:20 amKEF-SEA
31h 40m1 stop
$1,162American Airlines
Find Deal
Sat, Jan 25 - Thu, Jan 30
3:05 pm - 1:55 pmSEA-KEF
38h 50m2 stops
1:15 am - 9:30 pmKEF-SEA
28h 15m2 stops
$1,186
Find Deal
Sun, Jan 26 - Fri, Jan 31
8:04 am - 6:10 amSEA-KEF
14h 06m1 stop
5:00 pm - 6:43 pmKEF-SEA
33h 43m1 stop
$1,199
Find Deal
Wed, Jan 22 - Sun, Jan 26
11:05 am - 1:55 pmSEA-KEF
42h 50m2 stops
3:15 pm - 12:10 pmKEF-SEA
28h 55m1 stop
$1,218Lufthansa
Find Deal
Wed, Jan 22 - Sun, Jan 26
1:35 pm - 5:35 pmSEA-KEF
44h 00m2 stops
6:20 pm - 4:55 pmKEF-SEA
30h 35m1 stop
$1,278British Airways
Find Deal
Wed, Jan 22 - Sun, Jan 26
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$484Icelandair
Find Deal
Sun, Feb 2 - Tue, Feb 11
3:45 pm - 6:15 amSEA-KEF
7h 30mnonstop
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$510Icelandair
Find Deal
Thu, May 22 - Mon, Jun 2
7:00 pm - 9:25 amSEA-KEF
7h 25mnonstop
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$513Icelandair
Find Deal
Sun, May 25 - Sun, Jun 1
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$515Icelandair
Find Deal
Sun, Feb 2 - Tue, Feb 11
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 6:00 pmKEF-SEA
7h 55mnonstop
$518Icelandair
Find Deal
Thu, Mar 6 - Thu, Mar 13
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$524Icelandair
Find Deal
Thu, Feb 6 - Thu, Feb 13
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
5:05 pm - 5:00 pmKEF-SEA
7h 55mnonstop
$528Icelandair
Find Deal
Tue, Feb 11 - Mon, Feb 17
3:45 pm - 6:15 amSEA-KEF
7h 30mnonstop
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$534Icelandair
Find Deal
Mon, Jun 2 - Mon, Jun 9
7:00 pm - 9:25 amSEA-KEF
7h 25mnonstop
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$535Icelandair
Find Deal
Sat, May 24 - Sun, Jun 8
3:45 pm - 6:15 amSEA-KEF
7h 30mnonstop
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$536Icelandair
Find Deal
Thu, May 29 - Sat, Jun 7

Icelandair flights from Seattle to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
Feb 2
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Feb 11
KEF5:05 pmReykjavik Keflavik Intl
7h 55m
SEA5:00 pmSeattle/Tacoma Intl
Icelandair
Feb 23
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Feb 27
KEF5:05 pmReykjavik Keflavik Intl
7h 55m
SEA5:00 pmSeattle/Tacoma Intl
Icelandair
May 22
SEA3:45 pmSeattle/Tacoma Intl
7h 30m
KEF6:15 amReykjavik Keflavik Intl
Jun 2
KEF7:45 pmReykjavik Keflavik Intl
7h 55m
SEA8:40 pmSeattle/Tacoma Intl

British Airways flights from Seattle to Reykjavik Keflavik Intl Airport

Our best British Airways deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
British Airways
Mar 18
SEA7:50 pmSeattle/Tacoma Intl
31h 55m
1 stop
KEF10:45 amReykjavik Keflavik Intl
Mar 25
KEF11:45 amReykjavik Keflavik Intl
37h 10m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
British Airways
Feb 3
SEA6:50 pmSeattle/Tacoma Intl
32h 00m
1 stop
KEF10:50 amReykjavik Keflavik Intl
Feb 10
KEF11:45 amReykjavik Keflavik Intl
31h 35m
1 stop
SEA11:20 amSeattle/Tacoma Intl
British Airways
Feb 11
SEA6:50 pmSeattle/Tacoma Intl
31h 55m
1 stop
KEF10:45 amReykjavik Keflavik Intl
Feb 17
KEF11:45 amReykjavik Keflavik Intl
31h 35m
1 stop
SEA11:20 amSeattle/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 $691. If you’re not able to fly to Reykjavik Keflavik Intl Airport in May, then November is your next best option. Flight prices from Seattle to Reykjavik Keflavik Intl Airport during November average around $727.

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 Monday when prices can be found for as low as $728. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Friday, with ticket prices averaging around $793.

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 $770.

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 10 weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $767 when searching 10 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 $670 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 January 2025, prices for Seattle to Reykjavik Keflavik Intl Airport flights are approximately 31% 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

$343

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 $343. The best round-trip flight deal from Seattle to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $484.
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
Air CanadaPriceFrom $454Free CancellationRating
7.0
8,633 reviews
Search Air Canada flights
United AirlinesPriceFrom $485Free CancellationRating
7.4
8,984 reviews
Search United Airlines flights
DeltaPriceFrom $520Free CancellationRating
8.0
8,521 reviews
Search Delta flights
IcelandairPriceFrom $636Free CancellationRating
7.1
502 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 6 flights/week on average for this route. A good Icelandair flight deal for Seattle to Reykjavik Keflavik Intl Airport starts from $636 round-trip, up to an average price of $787. Our users have rated Icelandair at 7.1/10.


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.


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