HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Iceland

$243+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Iceland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 29, 2025.

Round-trip from

$516
(Flightnetwork)

One-way from

$243
(Trip.com)

Good round-trip deal

$522 or less

Good one-way deal

$262 or less
From Seattle/Tacoma Intl to Iceland
Search Deals
One-way flight from Seattle/Tacoma Intl to Iceland
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

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 29, 2025.

This CrystalTravel deal was found by Cheapflights users on 4/29. 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.
Sat 8/1611:30 pmSEA - KEF
Nonstop7h 30mIcelandair
Thu 9/47:45 pmKEF - SEA
Nonstop7h 55mIcelandair
Deal found 4/29$514
This Trip.com deal was found by Cheapflights users on 4/28. 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.
Wed 7/97:35 pmSEA - KEF
1 stop29h 40mWestJet
Wed 7/169:35 amKEF - SEA
1 stop17h 53mWestJet
Deal found 4/28$526
This Yatra.com deal was found by Cheapflights users on 4/28. 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 Yatra.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/310:58 pmSEA - KEF
1 stop27h 32mVirgin Atlantic
Mon 7/79:30 amKEF - SEA
1 stop34h 27mVirgin Atlantic
Deal found 4/28$554
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Mon 6/27:05 amSEA - KEF
1 stop18h 10mMultiple Airlines
Mon 6/99:35 amKEF - SEA
2 stops30h 43mMultiple Airlines
Deal found 4/28$559
This Delta deal was found by Cheapflights users on 4/28. 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 9/146:00 amSEA - KEF
1 stop17h 20mDelta
Wed 10/18:45 amKEF - SEA
1 stop18h 45mDelta
Deal found 4/28$560
This KLM deal was found by Cheapflights users on 4/29. 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 6/311:55 amSEA - KEF
1 stop12h 05mKLM
Tue 6/109:30 amKEF - SEA
2 stops21h 34mKLM
Deal found 4/29$566
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 8/1611:20 pmSEA - KEF
2 stops24h 40mUnited Airlines
Sun 8/249:30 amKEF - SEA
2 stops39h 27mUnited Airlines
Deal found 4/28$602
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Thu 8/1410:00 amSEA - KEF
2 stops15h 10mAir Canada
Tue 8/269:50 amKEF - SEA
2 stops19h 26mAir Canada
Deal found 4/29$612
This British Airways deal was found by Cheapflights users on 4/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:50 pmSEA - KEF
1 stop32h 05mBritish Airways
Mon 11/311:45 amKEF - SEA
1 stop37h 10mBritish Airways
Deal found 4/27$672

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 29, 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

Sat 8/16

11:30 pm-2:00 pm

Nonstop7h 30m

Reykjavik Keflavik Intl

Thu 9/4

7:45 pm-8:40 pm

Nonstop7h 55m

$514

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 7/9

7:35 pm-8:15 am

1 stop29h 40m

Reykjavik Keflavik Intl

Wed 7/16

9:35 am-8:28 pm

1 stop17h 53m

$526

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 7/3

10:58 pm-9:30 am

1 stop27h 32m

Reykjavik Keflavik Intl

Mon 7/7

9:30 am-12:57 pm

1 stop34h 27m

$554

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 6/2

7:05 am-8:15 am

1 stop18h 10m

Reykjavik Keflavik Intl

Mon 6/9

9:35 am-9:18 am

2 stops30h 43m

$559

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 9/14

6:00 am-6:20 am

1 stop17h 20m

Reykjavik Keflavik Intl

Wed 10/1

8:45 am-8:30 pm

1 stop18h 45m

$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-12:04 am

2 stops21h 34m

$568

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 8/16

11:20 pm-7:00 am

2 stops24h 40m

Reykjavik Keflavik Intl

Sun 8/24

9:30 am-5:57 pm

2 stops39h 27m

$602

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 8/14

10:00 am-8:10 am

2 stops15h 10m

Reykjavik Keflavik Intl

Tue 8/26

9:50 am-10:16 pm

2 stops19h 26m

$612

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 7/8

7:35 pm-8:15 am

1 stop29h 40m

$243

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 7/9

4:58 pm-4:55 am

2 stops28h 57m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 16 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 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 29, 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 29, 2025.

The most flights from SEA to IS0 are scheduled on a Monday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 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 29, 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
9,968 reviews

Food

7.1

Entertainment

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
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

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
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

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
9,968 reviews

Food

7.1

Entertainment

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
1,446 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

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 $456 and $489 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 $1,557, our data shows the cheapest flight currently is $192. When looking at the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl), you can expect to pay $503 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Iceland

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Heathrow flights
Seattle to Charles de Gaulle flights
Seattle to Istanbul flights
Seattle to Gatwick flights
Seattle to Dublin flights
Portland to Heathrow flights
Seattle to Leonardo da Vinci/Fiumicino flights
Seattle to London City flights
Seattle to Amsterdam flights
Seattle to Frankfurt flights
Seattle to Orly flights
Seattle to Athens flights
Seattle to Keflavik Intl flights
Seattle to Lisbon flights
Seattle to Oslo Gardermoen flights
Seattle to Madrid flights
Seattle to Vicenza flights
Seattle to Copenhagen flights
Seattle to Barcelona-El Prat flights
Seattle to Malpensa flights
Portland to Charles de Gaulle flights
Seattle to Munich flights
Seattle to Sabiha Gokcen flights
Portland to Leonardo da Vinci/Fiumicino flights
Seattle to Bruxelles-National flights
Seattle to Linate flights
Portland to Gatwick flights
Portland to Dublin flights
Portland to Amsterdam flights
Portland to Athens flights
Seattle to Zurich flights
Seattle to Berlin flights
Seattle to Geneva flights
Portland to Orly flights
Seattle to Edinburgh flights
Portland to Vicenza flights
Portland to London City flights
Portland to Lisbon flights
Portland to Madrid flights
Seattle to Arlanda flights
Seattle to Stansted flights
Seattle to Frederic Chopin flights
Seattle to Prague flights
Seattle to Nice flights
Seattle to Florence flights
Portland to Keflavik Intl flights
Seattle to Glasgow Intl flights
Seattle to Helsinki flights
Portland to Barcelona-El Prat flights
Seattle to Vienna flights

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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$417Average$612FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$454Average$497FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$528Average$747FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.