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$301+ Cheap flights from Seattle (SEA) to Iceland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Cheap flight deals from Seattle to Iceland

Cheapest flights from Seattle to Iceland
Explore the most affordable flight options available from Seattle to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Ticket deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Mon 5/117:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 4/22$456
This Ticket deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:25 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Wed 6/1010:40 am
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 4/19$457
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:00 am
SEA
-
KEF
1 stop18h 50m
United Airlines
Tue 6/1610:00 am
KEF
-
SEA
2 stops40h 18m
United Airlines
Deal found 4/20$458
This Gotogate deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:25 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Thu 6/117:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 4/23$467
This Air Canada deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:00 am
SEA
-
KEF
1 stop17h 45m
Air Canada
Sun 6/79:15 am
KEF
-
SEA
2 stops31h 50m
Air Canada
Deal found 4/20$471
This Ticket deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:20 am
SEA
-
KEF
1 stop19h 10m
Virgin Atlantic
Mon 5/1111:25 am
KEF
-
SEA
1 stop15h 45m
Virgin Atlantic
Deal found 4/22$472
This Mytrip deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:25 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Wed 6/104:50 pm
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 4/23$473
This Mytrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Sat 7/2510:40 am
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 4/22$474
This Gotogate deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:20 pm
SEA
-
KEF
2 stops30h 25m
Air Canada
Sat 6/1310:00 am
KEF
-
SEA
2 stops31h 05m
Air Canada
Deal found 4/20$475

Find flight deals from Seattle to Iceland

Keep the following information in mind while searching for Seattle to Iceland flight deals. Data was last updated April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$456
(Ticket)

One-way from

$301
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$660

Good round-trip deal

$581 or less

Good one-way deal

$371 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Reykjavik (REK) flights.
Search Deals
From Seattle/Tacoma Intl to Iceland
Search Deals
One-way flight from Seattle/Tacoma Intl to Iceland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Iceland.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Iceland.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 23, 2026.
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

Cheapest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 5/4

6:00 am-9:30 am

2 stops20h 30m

Reykjavik Keflavik Intl

Mon 5/11

11:25 am-8:10 pm

1 stop15h 45m

$514

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 5/14

11:53 pm-8:50 am

1 stop25h 57m

Reykjavik Keflavik Intl

Wed 5/20

12:00 pm-8:00 am

2 stops27h 00m

$514

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 5/4

4:36 pm-9:30 am

2 stops33h 54m

Reykjavik Keflavik Intl

Mon 5/11

11:25 am-11:44 pm

2 stops19h 19m

$514

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 6/5

7:40 am-8:30 am

1 stop17h 50m

Reykjavik Keflavik Intl

Tue 6/9

10:00 am-9:08 pm

1 stop18h 08m

$518
Quickest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 5/24

1:51 pm-8:50 am

1 stop11h 59m

Reykjavik Keflavik Intl

Thu 5/28

12:00 pm-7:05 pm

1 stop14h 05m

$520

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 6/13

11:52 pm-8:50 am

1 stop25h 58m

Reykjavik Keflavik Intl

Mon 6/22

10:00 am-9:07 pm

1 stop18h 07m

$530

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 6/22

11:52 pm-8:50 am

1 stop25h 58m

Reykjavik Keflavik Intl

Sat 6/27

12:00 pm-12:14 am

1 stop19h 14m

$530

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 6/12

11:52 pm-8:30 am

2 stops25h 38m

Reykjavik Keflavik Intl

Sat 6/20

10:00 am-9:07 pm

1 stop18h 07m

$532

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 5/22

8:05 pm-8:50 am

2 stops29h 45m

Reykjavik Keflavik Intl

Sun 5/31

12:00 pm-11:10 pm

2 stops42h 10m

$539

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 9/24

10:40 pm-8:45 am

2 stops27h 05m

Reykjavik Keflavik Intl

Mon 10/5

10:00 am-3:49 pm

2 stops36h 49m

$620

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
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Best time to book a flight from Seattle to Iceland

Have a flexible travel schedule? Discover the best time to fly to Iceland from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Iceland

What is the cheapest month to book a flight from Seattle to Iceland?

Currently, September is the cheapest month in which you can book a flight from Seattle to Iceland (average of $295). Flying from Seattle to Iceland in June is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to IS?

Find hourly flight availability from Seattle to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Iceland as you normally would.

Weekly flight availability from Seattle to Iceland

Explore weekly flight availability from Seattle to Iceland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 23, 2026.

The most flights from SEA to IS0 are scheduled on a Monday (4 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Iceland

Get insights into the airlines that provide service to Iceland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iceland. Reviews last updated April 23, 2026.
Read through reviews of airlines operating flights from Seattle to Iceland, such as Alaska Airlines,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,274 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,274 reviews
Alaska Airlines
7.9
Good
12,274 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,637 reviews
Alaska Airlines
7.9
Good
12,274 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Air Canada
7.1
Good
10,957 reviews
Alaska Airlines
7.9
Good
12,274 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Icelandair
7.0
Good
639 reviews
Alaska Airlines
7.9
Good
12,274 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Iceland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Iceland?

    If you book a flight to Iceland from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How long is the flight from Seattle to Iceland?

    Departing from Seattle to Iceland will take you 25h 57m. Airlines will cover a distance of 3608 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Seattle to Iceland one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $255. Users have also found prices from $399 and $428 on Alaska Airlines and Icelandair, respectively.

  • What are the most reliable airlines from Seattle to Iceland?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Iceland on time: airBaltic (82%), Alaska Airlines (68%), Icelandair (67%).

  • What are the cheapest flights from Seattle to Iceland?

    While on average a flight from Seattle to Iceland is generally $1,497, our data shows the cheapest flight currently is $242. When looking at the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl), you can expect to pay $477 for that flight.

  • Can I find deals for flights from Seattle to Iceland that include hotel bookings?

    Yes. In addition to deals on Seattle to Iceland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Iceland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Iceland.

  • Can I find deals for business class flights from Seattle to Iceland?

    Yes. Cheapflights offers flight deals from Seattle to Iceland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Iceland?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Iceland (average of $295). Flying from Seattle to Iceland in June is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Seattle to Iceland

Discover the top 2 airlines that operate flights from Seattle to Iceland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$374Average$604FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$607Average$832FlexibilityNo cancel feeOn-time75%

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