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$257+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
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 August 7, 2025.

Round-trip from

$423
(Ticket)

One-way from

$257
(WestJet)

Popular in

December

Cheapest in

August

Average price

$624

Good round-trip deal

$453 or less

Good one-way deal

$216 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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Highest demand for flights based on searches. 6% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 7, 2025.

This Ticket deal was found by Cheapflights users on 8/7. 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 9/2911:25 amSEA - KEF
1 stop15h 05mVirgin Atlantic
Mon 10/611:25 amKEF - SEA
1 stop29h 53mVirgin Atlantic
Deal found 8/7$423
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Fri 12/55:05 pmKEF - SEA
Nonstop7h 55mIcelandair
Deal found 8/6$439
This Delta deal was found by Cheapflights users on 8/6. 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.
Mon 9/297:45 amSEA - KEF
1 stop18h 45mDelta
Mon 10/611:25 amKEF - SEA
1 stop15h 37mDelta
Deal found 8/6$464
This United Airlines deal was found by Cheapflights users on 8/7. 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 8/217:20 amSEA - KEF
1 stop17h 50mUnited Airlines
Mon 8/259:50 amKEF - SEA
2 stops39h 59mUnited Airlines
Deal found 8/7$465
This KLM deal was found by Cheapflights users on 8/7. 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.
Mon 9/2911:25 amSEA - KEF
1 stop15h 05mMultiple Airlines
Mon 10/611:25 amKEF - SEA
1 stop17h 57mMultiple Airlines
Deal found 8/7$467
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/1812:05 pmSEA - KEF
1 stop13h 10mUnited Airlines
Mon 8/259:50 amKEF - SEA
2 stops32h 41mUnited Airlines
Deal found 8/5$471
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/145:26 pmSEA - KEF
1 stop32h 04mUnited Airlines
Fri 8/229:50 amKEF - SEA
1 stop32h 10mUnited Airlines
Deal found 8/6$472
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sun 8/177:00 pmSEA - KEF
2 stops30h 15mUnited Airlines
Mon 8/259:50 amKEF - SEA
2 stops32h 41mUnited Airlines
Deal found 8/5$476
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/1412:05 pmSEA - KEF
1 stop13h 10mUnited Airlines
Wed 8/209:30 amKEF - SEA
1 stop18h 15mUnited Airlines
Deal found 8/5$477
This Delta deal was found by Cheapflights users on 8/6. 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.
Sat 10/411:10 pmSEA - KEF
1 stop24h 10mDelta
Thu 10/1611:25 amKEF - SEA
1 stop17h 57mDelta
Deal found 8/6$481

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 August 7, 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

Mon 9/29

11:25 am-9:30 am

1 stop15h 05m

Reykjavik Keflavik Intl

Mon 10/6

11:25 am-10:18 am

1 stop29h 53m

$423

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 11/17

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Fri 12/5

5:05 pm-5:00 pm

Nonstop7h 55m

$439

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/29

7:45 am-9:30 am

1 stop18h 45m

Reykjavik Keflavik Intl

Mon 10/6

11:25 am-8:02 pm

1 stop15h 37m

$464

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 8/21

7:20 am-8:10 am

1 stop17h 50m

Reykjavik Keflavik Intl

Mon 8/25

9:50 am-6:49 pm

2 stops39h 59m

$465

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 10/18

11:15 am-9:30 am

2 stops15h 15m

Reykjavik Keflavik Intl

Sat 10/25

11:25 am-10:14 am

2 stops29h 49m

$477

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 10/4

11:10 pm-6:20 am

1 stop24h 10m

Reykjavik Keflavik Intl

Thu 10/16

11:25 am-10:22 pm

1 stop17h 57m

$481

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 9/4

11:25 am-9:30 am

1 stop15h 05m

Reykjavik Keflavik Intl

Tue 9/16

11:25 am-8:16 pm

1 stop15h 51m

$486

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 10/12

8:40 am-8:15 am

1 stop16h 35m

$257

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 8/27

8:40 am-8:15 am

1 stop16h 35m

$274

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 8/21

7:05 am-8:15 am

1 stop18h 10m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 17 results
1
2

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 June is currently the most expensive (average of $654). 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 August 7, 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 August 7, 2025.

The most flights from SEA to IS0 are scheduled on a Monday (6 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 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 August 7, 2025.
Read through reviews of airlines operating flights from Seattle to Iceland, such as Delta, United Airlines, and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
657 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
3,002 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,899 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 flights from Seattle to Iceland?

    While on average a flight from Seattle to Iceland is generally $1,451, our data shows the cheapest flight currently is $171. When looking at the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl), you can expect to pay $439 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 June is currently the most expensive (average of $654). 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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Alternative routes for Seattle to Iceland

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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 August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$323Average$543FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$397Average$679FlexibilityNo cancel feeOn-time76%

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