HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reykjavik

$324+ Cheap flights from Seattle (SEA) to Reykjavik (REK)

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — REK
Jun 17 — Jun 241
Wed 6/17
Wed 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Reykjavik 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.
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Reykjavik are usually found in October or January, booked 45 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap flight deals from Seattle to Reykjavik

Cheapest flights from Seattle to Reykjavik
Explore the most affordable flight options available from Seattle to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2026.

This Mytrip deal was found by Cheapflights users on 5/15. 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.
Fri 9/117:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Fri 10/97:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/15$449
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Fri 10/93:40 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Sun 10/187:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/13$450
This Mytrip deal was found by Cheapflights users on 5/14. 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.
Wed 9/237:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Fri 10/27:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/14$453
This Booking.com deal was found by Cheapflights users on 5/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Thu 10/17:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/16$457
This Cheapflightsfares deal was found by Cheapflights users on 5/13. 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.
Wed 9/303:40 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Thu 10/157:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/13$462
This Justfly.com deal was found by Cheapflights users on 5/17. 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.
Wed 9/307:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Thu 10/87:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
Deal found 5/17$465
This Mytrip deal was found by Cheapflights users on 5/17. 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.
Tue 9/111:25 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Mon 9/74:50 pm
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 5/17$466
This Ticket deal was found by Cheapflights users on 5/15. 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.
Tue 6/27:20 pm
SEA
-
KEF
2 stops53h 35m
Air Canada
Tue 6/910:00 am
KEF
-
SEA
2 stops15h 30m
Air Canada
Deal found 5/15$468
This Ticket deal was found by Cheapflights users on 5/15. 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.
Tue 6/27:15 am
SEA
-
KEF
1 stop19h 15m
Multiple Airlines
Tue 6/911:25 am
KEF
-
SEA
1 stop29h 40m
Multiple Airlines
Deal found 5/15$469
This Ticket deal was found by Cheapflights users on 5/15. 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.
Tue 6/29:35 am
SEA
-
KEF
2 stops16h 55m
Virgin Atlantic
Tue 6/911:25 am
KEF
-
SEA
1 stop15h 54m
Virgin Atlantic
Deal found 5/15$470
This Gotogate deal was found by Cheapflights users on 5/13. 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 9/211:25 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Wed 9/94:50 pm
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 5/13$471
This Mytrip deal was found by Cheapflights users on 5/15. 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 5/307:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Fri 6/510:40 am
KEF
-
SEA
Nonstop8h 05m
Icelandair
Deal found 5/15$472

Find flight deals from Seattle to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Reykjavik (REK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$449
(Mytrip)

One-way from

$324
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$677

Good round-trip deal

$607 or less

Good one-way deal

$363 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 Reykjavik (REK)
Search Deals
One-way flight from Seattle/Tacoma Intl to Reykjavik (REK)
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Reykjavik (REK).
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Reykjavik (REK).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Reykjavik 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 May 18, 2026.
Use the filters below to find and compare flights from Seattle to Reykjavik that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 9/27

8:00 am-8:45 am

1 stop17h 45m

Reykjavik Keflavik Intl

Mon 10/5

10:00 am-3:51 pm

2 stops36h 51m

$490

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 9/17

8:10 am-8:30 am

1 stop17h 20m

Reykjavik Keflavik Intl

Mon 9/28

10:00 am-3:51 pm

2 stops36h 51m

$499

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 6/8

1:51 pm-8:50 am

1 stop11h 59m

Reykjavik Keflavik Intl

Mon 6/15

10:00 am-7:18 pm

2 stops40h 18m

$508

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 9/30

9:05 am-7:00 am

1 stop14h 55m

Reykjavik Keflavik Intl

Thu 10/15

11:25 am-10:35 am

1 stop30h 10m

$509

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 6/2

11:20 am-9:30 am

1 stop15h 10m

Reykjavik Keflavik Intl

Mon 6/8

9:30 am-8:46 pm

1 stop18h 16m

$510

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 9/10

7:00 am-8:50 am

1 stop18h 50m

Reykjavik Keflavik Intl

Mon 9/21

10:00 am-9:04 pm

1 stop18h 04m

$513
Quickest round-trip

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 9/22

1:45 pm-7:00 am

1 stop10h 15m

Reykjavik Keflavik Intl

Tue 9/29

9:30 am-8:24 pm

1 stop17h 54m

$514

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 9/5

8:10 am-8:30 am

1 stop17h 20m

Reykjavik Keflavik Intl

Wed 9/16

12:00 pm-10:42 pm

1 stop17h 42m

$515

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 6/2

10:29 am-8:50 am

2 stops15h 21m

Reykjavik Keflavik Intl

Sun 6/7

11:30 am-8:46 pm

1 stop16h 16m

$523

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 7/12

5:20 am-7:40 am

1 stop19h 20m

Reykjavik Keflavik Intl

Thu 7/23

9:30 am-6:33 pm

2 stops16h 03m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seattle to Reykjavik

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Reykjavik in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Reykjavik flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Reykjavik flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Reykjavik flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Reykjavik flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Reykjavik flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik 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 Reykjavik

How far ahead should I book a flight from Seattle to Reykjavik?

To ensure you get the cheapest price possible for a flight from Seattle to Reykjavik, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Reykjavik (average of $295). Flying from Seattle to Reykjavik in June is currently the most expensive (average of $414). 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 REK?

Find hourly flight availability from Seattle to Reykjavik. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 18, 2026.

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

Weekly flight availability from Seattle to Reykjavik

Explore weekly flight availability from Seattle to Reykjavik. 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 May 18, 2026.

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

How much does it cost to fly round-trip from Seattle to Reykjavik?

Reviews of airlines servicing Reykjavik

Get insights into the airlines that provide service to Reykjavik. 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 Reykjavik. Reviews last updated May 18, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Seattle to Reykjavik have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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
12,377 reviews
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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.
Delta
7.9
Good
8,450 reviews
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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
9,736 reviews
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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
11,056 reviews
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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
656 reviews
Alaska Airlines
7.9
Good
12,377 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

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 Reykjavik. 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 Reykjavik?

    If you book a flight to Reykjavik 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. There are 4 flights from Seattle/Tacoma Intl to Reykjavik per day from 2 different airlines.

  • How long is the flight from Seattle to Reykjavik?

    United Airlines, Delta, and KLM can get you from Seattle to Reykjavik in just under 14h 55m. Your travel time can differ by up to 2h 50m. Airlines will cover a distance of 3608 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Reykjavik round-trip?

    According to our current data, Icelandair ($374), and Alaska Airlines ($548) offers the cheapest pricing from Seattle to Reykjavik. Icelandair is priced at 40% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $255. However, be on the lookout for offers from Alaska Airlines and Icelandair, as they are both options that can get you from Seattle to Reykjavik for a low price.

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

    The top 3 most reliable airlines when flying from Seattle to Reykjavik are airBaltic (100%), Alaska Airlines (72%) and Icelandair (71%).

  • What are the cheapest flights from Seattle to Reykjavik?

    On average you can expect to pay $1,516 for a flight from Seattle to Reykjavik. The cheapest flight overall is $238 while the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl) is currently priced at $448.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Reykjavik 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 Reykjavik?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Reykjavik (average of $295). Flying from Seattle to Reykjavik in June is currently the most expensive (average of $414). 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

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Hveragerdi

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 Reykjavik

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Keflavik Intl flights
Portland to Keflavik Intl flights

Top 2 airlines flying from Seattle to Reykjavik

Discover the top 2 airlines that operate flights from Seattle to Reykjavik. 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 May 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$374Average$606FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$548Average$810FlexibilityNo cancel feeOn-time75%

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.