Cheap flights from Seattle to Iceland from $235

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 Iceland departing on 10/1. 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 Iceland

Cheap round-trip flights

Icelandair Logo
7:00 pm - 9:25 amSEA-KEF
7h 25mnonstop
Icelandair Logo
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$398Icelandair
Find Deal
Tue, Sep 16 - Wed, Sep 24
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$399Icelandair
Find Deal
Thu, Nov 27 - Wed, Dec 3
Air Canada Logo
2:55 pm - 8:15 amSEA-KEF
34h 20m2 stops
Air Canada Logo
9:50 am - 2:16 pmKEF-SEA
35h 26m2 stops
$449Air Canada
Find Deal
Sat, Sep 13 - Mon, Sep 22
Air Canada Logo
5:30 am - 8:10 amSEA-KEF
19h 40m2 stops
Air Canada Logo
9:50 am - 10:59 amKEF-SEA
32h 09m1 stop
$451Air Canada
Find Deal
Sat, Sep 13 - Mon, Sep 22
 Logo
2:55 pm - 8:10 amSEA-KEF
34h 15m2 stops
 Logo
1:15 am - 4:59 pmKEF-SEA
22h 44m1 stop
Mon, Sep 22 - Tue, Sep 30
 Logo
7:15 pm - 8:10 amSEA-KEF
29h 55m2 stops
 Logo
1:15 am - 4:59 pmKEF-SEA
22h 44m1 stop
Mon, Sep 22 - Tue, Sep 30
United Airlines Logo
7:10 am - 8:30 amSEA-KEF
18h 20m2 stops
United Airlines Logo
9:50 am - 1:03 pmKEF-SEA
34h 13m2 stops
$469United Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
United Airlines Logo
7:00 am - 8:30 amSEA-KEF
18h 30m1 stop
United Airlines Logo
9:50 am - 3:32 pmKEF-SEA
36h 42m2 stops
$470United Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 23
Delta Logo
11:46 am - 6:20 amSEA-KEF
11h 34m1 stop
Delta Logo
11:25 am - 8:16 pmKEF-SEA
15h 51m1 stop
$473Delta
Find Deal
Sun, Oct 5 - Tue, Oct 14
Delta Logo
3:15 pm - 6:20 amSEA-KEF
32h 05m1 stop
Delta Logo
8:45 am - 6:23 pmKEF-SEA
16h 38m1 stop
$480Delta
Find Deal
Sat, Oct 4 - Tue, Oct 14

Delta flights from Seattle to Iceland

Our best Delta deals on Seattle to Iceland flight tickets
Delta
Oct 5
SEA11:46 amSeattle/Tacoma Intl
11h 34m
1 stop
KEF6:20 amReykjavik Keflavik Intl
Oct 14
KEF11:25 amReykjavik Keflavik Intl
15h 51m
1 stop
SEA8:16 pmSeattle/Tacoma Intl
Delta
Oct 4
SEA3:15 pmSeattle/Tacoma Intl
32h 05m
1 stop
KEF6:20 amReykjavik Keflavik Intl
Oct 14
KEF8:45 amReykjavik Keflavik Intl
16h 38m
1 stop
SEA6:23 pmSeattle/Tacoma Intl
Delta
Sep 16
SEA11:25 amSeattle/Tacoma Intl
15h 05m
1 stop
KEF9:30 amReykjavik Keflavik Intl
Sep 24
KEF8:45 amReykjavik Keflavik Intl
12h 55m
1 stop
SEA2:40 pmSeattle/Tacoma Intl

United Airlines flights from Seattle to Iceland

Our best United Airlines deals on Seattle to Iceland flight tickets
United Airlines
Sep 6
SEA7:15 amSeattle/Tacoma Intl
17h 55m
1 stop
KEF8:10 amReykjavik Keflavik Intl
Sep 20
KEF9:50 amReykjavik Keflavik Intl
37h 01m
2 stops
SEA3:51 pmSeattle/Tacoma Intl
United Airlines
Sep 15
SEA7:10 amSeattle/Tacoma Intl
18h 20m
2 stops
KEF8:30 amReykjavik Keflavik Intl
Sep 22
KEF9:50 amReykjavik Keflavik Intl
34h 13m
2 stops
SEA1:03 pmSeattle/Tacoma Intl
United Airlines
Sep 9
SEA7:00 amSeattle/Tacoma Intl
18h 30m
1 stop
KEF8:30 amReykjavik Keflavik Intl
Sep 23
KEF9:50 amReykjavik Keflavik Intl
36h 42m
2 stops
SEA3:32 pmSeattle/Tacoma Intl

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Iceland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Seattle to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 9/16

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Wed 9/24

7:45 pm-8:40 pm

Nonstop7h 55m

$398

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 11/27

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 12/3

5:00 pm-5:00 pm

Nonstop8h 00m

$399

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 9/13

2:55 pm-8:15 am

2 stops34h 20m

Reykjavik Keflavik Intl

Mon 9/22

9:50 am-2:16 pm

2 stops35h 26m

$449

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 9/13

5:30 am-8:10 am

2 stops19h 40m

Reykjavik Keflavik Intl

Mon 9/22

9:50 am-10:59 am

1 stop32h 09m

$451

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/22

2:55 pm-8:10 am

2 stops34h 15m

Reykjavik Keflavik Intl

Tue 9/30

1:15 am-4:59 pm

1 stop22h 44m

$457

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/22

7:15 pm-8:10 am

2 stops29h 55m

Reykjavik Keflavik Intl

Tue 9/30

1:15 am-4:59 pm

1 stop22h 44m

$458

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/15

7:10 am-8:30 am

2 stops18h 20m

Reykjavik Keflavik Intl

Mon 9/22

9:50 am-1:03 pm

2 stops34h 13m

$469

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 9/9

7:00 am-8:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Tue 9/23

9:50 am-3:32 pm

2 stops36h 42m

$470

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 10/5

11:46 am-6:20 am

1 stop11h 34m

Reykjavik Keflavik Intl

Tue 10/14

11:25 am-8:16 pm

1 stop15h 51m

$473

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 10/4

3:15 pm-6:20 am

1 stop32h 05m

Reykjavik Keflavik Intl

Tue 10/14

8:45 am-6:23 pm

1 stop16h 38m

$480

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 Iceland from

How to get the cheapest flight ticket from Seattle to Iceland

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 Iceland?

The cheapest month to fly to Iceland from Seattle is in August. Flight prices, which tend to average around $624, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Iceland from Seattle during September instead. Flights to Iceland in September, while not as cheap as those in August, still average around $631.

What is the cheapest day to depart on your flight to Iceland?

The cheapest day to depart from Seattle to Iceland is on a Wednesday when prices can be found for as low as $624. Flights from Seattle to Iceland on a Thursday will generally be more expensive and average around $665. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Iceland?

According to our data, the cheapest time of day to fly to Iceland is in the morning. momondo users have found flights departing from Seattle to Iceland in the morning for as low as $536. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $660. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Iceland?

You are more likely to see cheaper flights to Iceland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Iceland for around $726 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iceland from Seattle for as low as $505 on momondo.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Iceland 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 Iceland flights?

You could potentially save up to 43% on your flight if you consider stops on a Seattle to Iceland flight.

Cheap Seattle to Iceland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Iceland

Best Price Found

$273

Fastest flight time

7h 25m

Direct flights

Every day

Airports in Iceland

1 airport
The best one-way flight to Iceland from Seattle in the past 72 hours is $273. The best round-trip flight deal from Seattle to Iceland found on momondo in the last 72 hours is $460.
The fastest flight from Seattle to Iceland takes 7h 25m
Direct flights go from Seattle to Iceland every day.
There is 1 airport near Iceland: Reykjavik Keflavik Intl (KEF)
  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Iceland?

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Iceland.

  • What documentation or ID do you need to fly to Iceland?

    The travel and health documents you'll need for your trip to Iceland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Iceland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Iceland?

Best airlines flying from Seattle to Iceland

Compare and see reviews for airlines that fly from Seattle to Iceland with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $397Free CancellationRating
7.0
537 reviews
Search Icelandair flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Iceland for you.

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

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

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

Once all potential Seattle to Iceland 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 Iceland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Iceland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Iceland and let you know when they change.

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1 adult
Tue 9/2
Tue 9/9

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Popular cities in Iceland

Popular flights according to clicks in the last 7 days on momondo