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$242+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap 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 24, 2025.

Round-trip from

$511
(Trip.com)

One-way from

$243
(Trip.com)

Good round-trip deal

$525 or less

Good one-way deal

$264 or less
From Seattle/Tacoma Intl to Iceland
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One-way flight from Seattle/Tacoma Intl to Iceland
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Iceland.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Iceland.
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Find 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 24, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/207:05 amSEA - KEF
1 stop18h 10mWestJet
Wed 7/309:35 amKEF - SEA
1 stop16h 03mWestJet
Deal found 4/22$511
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.
Wed 10/13:45 pmSEA - KEF
Nonstop7h 30mIcelandair
Sun 10/127:45 pmKEF - SEA
Nonstop7h 55mIcelandair
Deal found 4/23$513
This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:45 pmSEA - KEF
2 stops28h 45mVirgin Atlantic
Sun 5/411:25 amKEF - SEA
1 stop15h 38mVirgin Atlantic
Deal found 4/22$534
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1211:15 amSEA - KEF
1 stop15h 15mDelta
Sun 10/1911:25 amKEF - SEA
1 stop18h 23mDelta
Deal found 4/23$560
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:50 amSEA - KEF
1 stop13h 30mKLM
Tue 6/109:30 amKEF - SEA
1 stop13h 47mKLM
Deal found 4/23$566
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:25 amSEA - KEF
2 stops14h 55mAir France
Sun 10/1911:25 amKEF - SEA
1 stop18h 23mAir France
Deal found 4/23$567
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/214:20 pmSEA - KEF
1 stop17h 00mScandinavian Airlines
Tue 9/305:10 pmKEF - SEA
1 stop27h 50mScandinavian Airlines
Deal found 4/23$568
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:23 amSEA - KEF
1 stop19h 07mMultiple Airlines
Sun 5/411:25 amKEF - SEA
1 stop15h 38mMultiple Airlines
Deal found 4/22$578
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/167:15 pmSEA - KEF
2 stops30h 00mAir Canada
Sun 8/249:30 amKEF - SEA
1 stop18h 11mAir Canada
Deal found 4/23$613
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:00 amSEA - KEF
2 stops18h 15mUnited Airlines
Tue 8/2611:00 amKEF - SEA
2 stops16h 42mUnited Airlines
Deal found 4/23$632
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/262:15 pmSEA - KEF
1 stop15h 50mLufthansa
Mon 6/212:25 amKEF - SEA
1 stop19h 00mLufthansa
Deal found 4/23$718

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 24, 2025.
Use the filters below to find and compare flights from Seattle to Iceland that are best for you.

Fly from

Seattle

Fly to

Iceland

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 7/20

7:05 am-8:15 am

1 stop18h 10m

Reykjavik Keflavik Intl

Wed 7/30

9:35 am-6:38 pm

1 stop16h 03m

$511

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 10/1

3:45 pm-6:15 am

Nonstop7h 30m

Reykjavik Keflavik Intl

Sun 10/12

7:45 pm-8:40 pm

Nonstop7h 55m

$513

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 10/12

11:15 am-9:30 am

1 stop15h 15m

Reykjavik Keflavik Intl

Sun 10/19

11:25 am-10:48 pm

1 stop18h 23m

$560

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 6/3

9:50 am-6:20 am

1 stop13h 30m

Reykjavik Keflavik Intl

Tue 6/10

9:30 am-4:17 pm

1 stop13h 47m

$566

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 10/14

8:25 am-6:20 am

2 stops14h 55m

Reykjavik Keflavik Intl

Sun 10/19

11:25 am-10:48 pm

1 stop18h 23m

$567

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 9/21

4:20 pm-4:20 pm

1 stop17h 00m

Reykjavik Keflavik Intl

Tue 9/30

5:10 pm-2:00 pm

1 stop27h 50m

$568

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 6/21

2:55 pm-8:15 am

2 stops34h 20m

Reykjavik Keflavik Intl

Sat 6/28

9:35 am-2:09 pm

2 stops35h 34m

$578

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 8/16

7:15 pm-8:15 am

2 stops30h 00m

Reykjavik Keflavik Intl

Sun 8/24

9:30 am-8:41 pm

1 stop18h 11m

$613

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 8/14

7:00 am-8:15 am

2 stops18h 15m

Reykjavik Keflavik Intl

Tue 8/26

11:00 am-8:42 pm

2 stops16h 42m

$632

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 5/26

2:15 pm-1:05 pm

1 stop15h 50m

Reykjavik Keflavik Intl

Mon 6/2

12:25 am-12:25 pm

1 stop19h 00m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 19 results
1
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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, November is the cheapest month in which you can book a flight from Seattle to Iceland (average of $328). Flying from Seattle to Iceland in July is currently the most expensive (average of $651). 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 24, 2025.

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 24, 2025.

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).

Rainfall in Iceland by month

Plan your trip to Iceland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Iceland ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Iceland when rainfall is around 1.6 in.

Temperature in Iceland by month

Plan your trip to Iceland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Iceland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 24, 2025.
To help decide which airline to fly from Seattle to Iceland, see what other customers have to say about Alaska Airlines, Delta and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
KLM
7.8
Good
1,333 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Air France
7.4
Good
1,442 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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.

  • 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 $243. Users have also found prices from $461 and $482 on United 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 (100%), Alaska Airlines (85%), Icelandair (85%).

  • What are the cheapest flights from Seattle to Iceland?

    While on average a flight from Seattle to Iceland is generally $1,491, our data shows the cheapest flight currently is $184. When looking at the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl), you can expect to pay $501 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, November is the cheapest month in which you can book a flight from Seattle to Iceland (average of $328). Flying from Seattle to Iceland in July is currently the most expensive (average of $651). 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.

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Top 3 airlines flying from Seattle to Iceland

Discover the top 3 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$417Average$612FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$454Average$497FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$528Average$749FlexibilityNo cancel feeOn-time76%

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