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

WestJet and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Iceland

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

43 flights are operational weekly from Seattle to Iceland as of June 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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

6 flights are operational daily from Seattle to Iceland as of June 2026. The most popular departure time for this route is 7:00PM, with 71% of flights per day taking off in the evening.

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 June 2026, there are 2 operators 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.

$279 Cheap Flights from Seattle to Iceland in 2026

Find the cheapest flights from Seattle to Iceland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:25 pm - 2:00 pm

SEA

KEF

7h 35mnonstop

10:40 am - 11:45 am

KEF

SEA

8h 05mnonstop

$483Icelandair

Mon, Jun 22 - Fri, Jun 26

6:35 pm - 9:00 am

SEA

KEF

7h 25mnonstop

12:45 pm - 1:40 pm

KEF

SEA

7h 55mnonstop

$494Alaska Airlines

Thu, Jul 2 - Fri, Jul 10

11:20 pm - 8:30 am

SEA

KEF

26h 10m

1 stop

9:15 am - 10:07 am

KEF

SEA

31h 52m

2 stops

$501Multiple Airlines

Thu, Jul 2 - Tue, Jul 7

11:20 pm - 8:30 am

SEA

KEF

26h 10m

1 stop

10:00 am - 10:07 am

KEF

SEA

31h 07m

2 stops

$506Multiple Airlines

Thu, Jul 2 - Mon, Jul 13

7:00 am - 8:50 am

SEA

KEF

18h 50m

1 stop

11:30 am - 8:00 am

KEF

SEA

27h 30m

2 stops

$510United Airlines

Thu, Jul 16 - Sun, Jul 26

7:20 pm - 7:55 am

SEA

KEF

29h 35m

2 stops

9:15 am - 10:42 pm

KEF

SEA

20h 27m

2 stops

$511Air Canada

Sat, Jun 20 - Mon, Jun 29

7:20 pm - 7:55 am

SEA

KEF

29h 35m

2 stops

10:00 am - 9:07 pm

KEF

SEA

18h 07m

1 stop

$515Air Canada

Sat, Jun 20 - Mon, Jun 29

5:45 am - 7:55 am

SEA

KEF

19h 10m

2 stops

10:00 am - 9:07 pm

KEF

SEA

18h 07m

1 stop

$516Air Canada

Thu, Jul 16 - Thu, Jul 23

10:52 am - 8:50 am

SEA

KEF

14h 58m

1 stop

10:00 am - 9:07 pm

KEF

SEA

18h 07m

1 stop

$517United Airlines

Wed, Jul 15 - Tue, Jul 21

7:00 am - 8:50 am

SEA

KEF

18h 50m

1 stop

12:00 pm - 7:06 pm

KEF

SEA

14h 06m

1 stop

$518Multiple Airlines

Thu, Jul 23 - Fri, Jul 31

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from Seattle to Iceland

Our best Air Canada deals on Seattle to Iceland flight tickets

Air Canada

Jun 20

SEA7:20 pmSeattle/Tacoma Intl

29h 35m

2 stops

KEF7:55 amReykjavik Keflavik Intl

Jun 30

KEF9:15 amReykjavik Keflavik Intl

20h 27m

2 stops

SEA10:42 pmSeattle/Tacoma Intl

$511

Air Canada

Jul 6

SEA5:45 amSeattle/Tacoma Intl

19h 10m

2 stops

KEF7:55 amReykjavik Keflavik Intl

Jul 13

KEF10:00 amReykjavik Keflavik Intl

19h 42m

2 stops

SEA10:42 pmSeattle/Tacoma Intl

$515

Air Canada

Jun 17

SEA5:45 amSeattle/Tacoma Intl

20h 00m

2 stops

KEF8:45 amReykjavik Keflavik Intl

Jun 27

KEF9:15 amReykjavik Keflavik Intl

16h 17m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

$516

United Airlines flights from Seattle to Iceland

Our best United Airlines deals on Seattle to Iceland flight tickets

United Airlines

Jul 16

SEA7:00 amSeattle/Tacoma Intl

18h 50m

1 stop

KEF8:50 amReykjavik Keflavik Intl

Jul 26

KEF11:30 amReykjavik Keflavik Intl

27h 30m

2 stops

SEA8:00 amSeattle/Tacoma Intl

$510

United Airlines

Jun 18

SEA8:00 amSeattle/Tacoma Intl

17h 30m

1 stop

KEF8:30 amReykjavik Keflavik Intl

Jun 30

KEF10:00 amReykjavik Keflavik Intl

18h 07m

1 stop

SEA9:07 pmSeattle/Tacoma Intl

$517

United Airlines

Jun 13

SEA8:00 amSeattle/Tacoma Intl

17h 30m

1 stop

KEF8:30 amReykjavik Keflavik Intl

Jun 19

KEF12:00 pmReykjavik Keflavik Intl

14h 05m

1 stop

SEA7:05 pmSeattle/Tacoma Intl

$519

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 6/22

11:25 pm-2:00 pm

Nonstop7h 35m

Reykjavik Keflavik Intl

Fri 6/26

10:40 am-11:45 am

Nonstop8h 05m

$483

Quickest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/2

6:35 pm-9:00 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Fri 7/10

12:45 pm-1:40 pm

Nonstop7h 55m

$494

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/2

11:20 pm-8:30 am

1 stop26h 10m

Reykjavik Keflavik Intl

Tue 7/7

9:15 am-10:07 am

2 stops31h 52m

$501

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/2

11:20 pm-8:30 am

1 stop26h 10m

Reykjavik Keflavik Intl

Mon 7/13

10:00 am-10:07 am

2 stops31h 07m

$506

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/16

7:00 am-8:50 am

1 stop18h 50m

Reykjavik Keflavik Intl

Sun 7/26

11:30 am-8:00 am

2 stops27h 30m

$510

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 6/20

7:20 pm-7:55 am

2 stops29h 35m

Reykjavik Keflavik Intl

Mon 6/29

9:15 am-10:42 pm

2 stops20h 27m

$511

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 6/20

7:20 pm-7:55 am

2 stops29h 35m

Reykjavik Keflavik Intl

Mon 6/29

10:00 am-9:07 pm

1 stop18h 07m

$515

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/16

5:45 am-7:55 am

2 stops19h 10m

Reykjavik Keflavik Intl

Thu 7/23

10:00 am-9:07 pm

1 stop18h 07m

$516

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 7/15

10:52 am-8:50 am

1 stop14h 58m

Reykjavik Keflavik Intl

Tue 7/21

10:00 am-9:07 pm

1 stop18h 07m

$517

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/23

7:00 am-8:50 am

1 stop18h 50m

Reykjavik Keflavik Intl

Fri 7/31

12:00 pm-7:06 pm

1 stop14h 06m

$518

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 November. Flight prices, which tend to average around $361, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Iceland from Seattle during October instead. Flights to Iceland in October, while not as cheap as those in November, still average around $361.

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 $580. Flights from Seattle to Iceland on a Saturday will generally be more expensive and average around $630. 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 at noon. momondo users have found flights departing from Seattle to Iceland at noon for as low as $527. 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 $643. 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 from Seattle 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 $644 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 $529 on momondo.

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

There are 4 cabin classes available to choose from on Seattle 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 17% 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	$318
Fastest flight time	7h 25m
Direct flights	Every day
Airports in Iceland	24 airports

The best one-way flight to Iceland from Seattle in the past 72 hours is $318. The best round-trip flight deal from Seattle to Iceland found on momondo in the last 72 hours is $615.

The fastest flight from Seattle to Iceland takes 7h 25m

Direct flights go from Seattle to Iceland every day.

There are 24 airports in Iceland. From Seattle there are direct flights to Reykjavik Keflavik Intl (KEF).

Search flight deals

Frequently asked questions about flying from Seattle to Iceland

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 June 2026, there are 2 operators 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 22.54% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 15.35%, Boeing 737 MAX 8 at 13.47%, and Boeing 777-300ER at 11.84%.

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 $374	Free Cancellation	Rating 7.0 670 reviews		Search Icelandair flights
Alaska Airlines	PriceFrom $547	Free Cancellation	Rating 7.9 12,482 reviews		Search Alaska Airlines 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

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 7/9

Thu 7/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Iceland

Popular cities

Other flights from Seattle

Other flights to Iceland

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Iceland

Flights to Reykjavikfrom $403

Flights to Akureyrifrom $773

Flights to Egilsstaðir

Cheap flights from Seattle to Iceland from $279

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 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Iceland

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from Seattle to Iceland

Our best Air Canada 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

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Iceland that are best for you.

See travel insights to Iceland from

How to get the cheapest flight ticket from Seattle to Iceland

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?

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

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

Can stopping save me money on Seattle to Iceland flights?

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

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

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

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

Frequently asked questions about flying 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?

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

Seattle flight routes

According to popular flight searches on momondo this year

Iceland flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Iceland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Iceland

List of cabin classes available on flights landing in Iceland. Availability may vary depending on flight origin and airline.

Complete your trip to Iceland

Explore popular destinations other users love

According to popular flight searches on momondo this year