What is the cheapest airline that flies from Seattle/Tacoma Intl to Iceland?

WestJet, Icelandair, and Lufthansa are the most popular carriers operating from Seattle/Tacoma Intl to Iceland

How many flights depart from Seattle to Iceland on average per day?

5 flights are operational daily from Seattle to Iceland as of August 2025. The most popular departure time for this route is 3:00PM, with 66% of flights per day taking off in the evening.

How many flights depart from Seattle to Iceland on average per week?

37 flights are operational weekly from Seattle to Iceland as of August 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.

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?

As of August 2025, there is 1 operator available to choose from 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.

$235 Cheap Flights from Seattle to Iceland in 2025

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Find the cheapest flights from Seattle to Iceland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:00 pm - 9:25 amSEA-KEF

7h 25mnonstop

7:45 pm - 8:40 pmKEF-SEA

7h 55mnonstop

$398Icelandair

Find Deal

Tue, Sep 16 - Wed, Sep 24

2:35 pm - 6:15 amSEA-KEF

7h 40mnonstop

5:00 pm - 5:00 pmKEF-SEA

8h 00mnonstop

$399Icelandair

Find Deal

Thu, Nov 27 - Wed, Dec 3

2:55 pm - 8:15 amSEA-KEF

34h 20m2 stops

9:50 am - 2:16 pmKEF-SEA

35h 26m2 stops

$449Air Canada

Find Deal

Sat, Sep 13 - Mon, Sep 22

5:30 am - 8:10 amSEA-KEF

19h 40m2 stops

9:50 am - 10:59 amKEF-SEA

32h 09m1 stop

$451Air Canada

Find Deal

Sat, Sep 13 - Mon, Sep 22

2:55 pm - 8:10 amSEA-KEF

34h 15m2 stops

1:15 am - 4:59 pmKEF-SEA

22h 44m1 stop

$457

Find Deal

Mon, Sep 22 - Tue, Sep 30

7:15 pm - 8:10 amSEA-KEF

29h 55m2 stops

1:15 am - 4:59 pmKEF-SEA

22h 44m1 stop

$458

Find Deal

Mon, Sep 22 - Tue, Sep 30

7:10 am - 8:30 amSEA-KEF

18h 20m2 stops

9:50 am - 1:03 pmKEF-SEA

34h 13m2 stops

$469United Airlines

Find Deal

Mon, Sep 15 - Mon, Sep 22

7:00 am - 8:30 amSEA-KEF

18h 30m1 stop

9:50 am - 3:32 pmKEF-SEA

36h 42m2 stops

$470United Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 23

11:46 am - 6:20 amSEA-KEF

11h 34m1 stop

11:25 am - 8:16 pmKEF-SEA

15h 51m1 stop

$473Delta

Find Deal

Sun, Oct 5 - Tue, Oct 14

3:15 pm - 6:20 amSEA-KEF

32h 05m1 stop

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

$473

Find similar

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

$480

Find similar

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

$486

Find similar

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

$465

Find similar

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

$469

Find similar

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

$470

Find similar

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

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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

Prices

Airlines

Other information

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)

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?
As of August 2025, there is 1 operator available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Iceland is Airbus A330-900neo, representing 18.48% of all bookings. The subsequent popular models are Airbus A321neo at 16.04%, Airbus A330-200 at 13.36%, and Airbus A350-900 at 13.05%.

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
Icelandair	PriceFrom $397	Free Cancellation	Rating 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.

An easier way to manage your Iceland 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.

Start using Trips

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Find better results for your trip to Iceland

Popular cities in Iceland

Flights to Reykjavik

Flights to Akureyrifrom $600

Flights to Egilsstaðir

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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Big names and deals

Filter for what you want

Filter for what you want

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Trusted and free

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Find the cheapest flights from Seattle to Iceland

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Delta flights from Seattle to Iceland

Our best Delta deals on Seattle to Iceland flight tickets

United Airlines flights from Seattle to Iceland

Our best United Airlines deals on Seattle to Iceland flight tickets

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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?

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

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

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?

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.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Iceland?

WestJet, Icelandair, and Lufthansa are the most popular carriers operating from Seattle/Tacoma Intl to Iceland

How many flights depart from Seattle to Iceland on average per day?

5 flights are operational daily from Seattle to Iceland as of August 2025. The most popular departure time for this route is 3:00PM, with 66% of flights per day taking off in the evening.

How many flights depart from Seattle to Iceland on average per week?

37 flights are operational weekly from Seattle to Iceland as of August 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.

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

Fastest flight time

Direct flights

Airports in Iceland

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Iceland?

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?

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

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Seattle to Iceland right now. Can momondo alert me if prices change?

An easier way to manage your Iceland 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.

Find better results for your trip to Iceland

Popular cities in Iceland

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