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Cheap flights from Seattle to Iceland from $307

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 1/12. 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

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 9:25 amSEA-KEF
7h 25mnonstop
Icelandair Logo
7:50 pm - 8:45 pmKEF-SEA
7h 55mnonstop
$411Icelandair
Find Deal
Wed, Apr 22 - Mon, Apr 27
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$412Icelandair
Find Deal
Mon, Nov 10 - Wed, Nov 19
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$422Icelandair
Find Deal
Mon, Nov 10 - Wed, Nov 19
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$426Icelandair
Find Deal
Mon, Nov 10 - Wed, Nov 19
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$429Icelandair
Find Deal
Mon, Nov 10 - Wed, Nov 19
Multiple Airlines Logo
2:00 pm - 2:20 pmSEA-KEF
16h 20m1 stop
Multiple Airlines Logo
3:20 pm - 1:20 pmKEF-SEA
30h 00m2 stops
$536Multiple Airlines
Find Deal
Thu, Jan 15 - Tue, Jan 20
Multiple Airlines Logo
3:10 pm - 2:15 pmSEA-KEF
15h 05m1 stop
Multiple Airlines Logo
3:10 pm - 2:31 pmKEF-SEA
55h 21m2 stops
$540Multiple Airlines
Find Deal
Wed, Jan 21 - Sat, Jan 31
Lufthansa Logo
2:00 pm - 2:20 pmSEA-KEF
16h 20m1 stop
Lufthansa Logo
3:20 pm - 1:20 pmKEF-SEA
30h 00m2 stops
$541Lufthansa
Find Deal
Thu, Jan 15 - Tue, Jan 20
Lufthansa Logo
3:10 pm - 2:15 pmSEA-KEF
15h 05m1 stop
Lufthansa Logo
3:25 pm - 12:10 pmKEF-SEA
28h 45m1 stop
$563Lufthansa
Find Deal
Wed, Dec 31 - Fri, Feb 13
Finnair Logo
8:20 pm - 7:50 amSEA-KEF
28h 30m2 stops
Finnair Logo
8:35 am - 11:05 pmKEF-SEA
21h 30m2 stops
$614Finnair
Find Deal
Tue, Apr 14 - Thu, Apr 30

Lufthansa flights from Seattle to Iceland

Our best Lufthansa deals on Seattle to Iceland flight tickets
Lufthansa
Jan 15
SEA2:00 pmSeattle/Tacoma Intl
16h 20m
1 stop
KEF2:20 pmReykjavik Keflavik Intl
Jan 20
KEF3:20 pmReykjavik Keflavik Intl
30h 00m
2 stops
SEA1:20 pmSeattle/Tacoma Intl
$541
Find similar
Lufthansa
Dec 31
SEA3:10 pmSeattle/Tacoma Intl
15h 05m
1 stop
KEF2:15 pmReykjavik Keflavik Intl
Feb 13
KEF3:25 pmReykjavik Keflavik Intl
28h 45m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$563
Find similar
Lufthansa
Jan 15
SEA2:00 pmSeattle/Tacoma Intl
16h 20m
1 stop
KEF2:20 pmReykjavik Keflavik Intl
Jan 20
KEF3:20 pmReykjavik Keflavik Intl
30h 00m
2 stops
SEA1:20 pmSeattle/Tacoma Intl
$590
Find similar

Icelandair flights from Seattle to Iceland

Our best Icelandair deals on Seattle to Iceland flight tickets
Icelandair
Apr 22
SEA7:00 pmSeattle/Tacoma Intl
7h 25m
KEF9:25 amReykjavik Keflavik Intl
Apr 27
KEF7:50 pmReykjavik Keflavik Intl
7h 55m
SEA8:45 pmSeattle/Tacoma Intl
$411
Find similar
Icelandair
Nov 10
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Nov 19
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$412
Find similar
Icelandair
Nov 10
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Nov 19
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$422
Find similar

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 October 30, 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

Wed 4/22

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Mon 4/27

7:50 pm-8:45 pm

Nonstop7h 55m

$411

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 11/10

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 11/19

5:00 pm-5:00 pm

Nonstop8h 00m

$412

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 11/10

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 11/19

5:00 pm-5:00 pm

Nonstop8h 00m

$422

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 11/10

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 11/19

5:00 pm-5:00 pm

Nonstop8h 00m

$426

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 11/10

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 11/19

5:00 pm-5:00 pm

Nonstop8h 00m

$429

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 1/15

2:00 pm-2:20 pm

1 stop16h 20m

Reykjavik Keflavik Intl

Tue 1/20

3:20 pm-1:20 pm

2 stops30h 00m

$536

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 1/21

3:10 pm-2:15 pm

1 stop15h 05m

Reykjavik Keflavik Intl

Sat 1/31

3:10 pm-2:31 pm

2 stops55h 21m

$540

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 1/15

2:00 pm-2:20 pm

1 stop16h 20m

Reykjavik Keflavik Intl

Tue 1/20

3:20 pm-1:20 pm

2 stops30h 00m

$541

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 12/31

3:10 pm-2:15 pm

1 stop15h 05m

Reykjavik Keflavik Intl

Fri 2/13

3:25 pm-12:10 pm

1 stop28h 45m

$563

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 4/14

8:20 pm-7:50 am

2 stops28h 30m

Reykjavik Keflavik Intl

Thu 4/30

8:35 am-11:05 pm

2 stops21h 30m

$614

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 October. Flight prices, which tend to average around $498, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Iceland from Seattle during August instead. Flights to Iceland in August, while not as cheap as those in October, still average around $586.

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 $615. Flights from Seattle to Iceland on a Thursday will generally be more expensive and average around $650. 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 $654. 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 $701 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 45% 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

$423

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 $423. The best round-trip flight deal from Seattle to Iceland found on momondo in the last 72 hours is $473.
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)
Search flight deals

  • 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
DeltaPriceFrom $323Free CancellationRating
7.9
7,998 reviews
Search Delta flights
IcelandairPriceFrom $374Free CancellationRating
7.1
562 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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Find better results for your trip to Iceland

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