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$382+ Cheap flights from Keflavik Intl (KEF) to Washington

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.
KEF — SEA
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Washington

Keep the following information in mind while searching for Keflavik Intl to Washington flight deals. Data was last updated enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$614
(Gotogate)

One-way from

$382
(Kiwi.com)

Good one-way deal

$515 or less
Provider with most accurate pricing for Reykjavik (REK)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Reykjavik (REK)-Seattle/Tacoma Intl flights.
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From Reykjavik Keflavik Intl to Washington
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One-way flight from Reykjavik Keflavik Intl to Washington
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to Washington.
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Find flight deals from Keflavik Intl to Washington

Cheapest flights from Keflavik Intl to Washington
Explore the most affordable flight options available from Keflavik Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 14, 2026.

This Gotogate deal was found by Cheapflights users on 1/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/95:00 pm
KEF
-
SEA
Nonstop8h 00m
Icelandair
mar. 3/173:35 pm
SEA
-
KEF
Nonstop7h 40m
Icelandair
Deal found 1/14$614
This Gotogate deal was found by Cheapflights users on 1/13. 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.
lun. 8/2410:40 am
KEF
-
SEA
Nonstop8h 05m
Icelandair
lun. 8/313:40 pm
SEA
-
KEF
Nonstop7h 35m
Icelandair
Deal found 1/13$649
This Gotogate deal was found by Cheapflights users on 1/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/247:45 pm
KEF
-
SEA
Nonstop7h 55m
Icelandair
mié. 7/17:00 pm
SEA
-
KEF
Nonstop7h 25m
Icelandair
Deal found 1/14$681
This Gotogate deal was found by Cheapflights users on 1/13. 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.
jue. 1/295:00 pm
KEF
-
SEA
Nonstop8h 00m
Icelandair
lun. 2/22:35 pm
SEA
-
KEF
Nonstop7h 40m
Icelandair
Deal found 1/13$695
This Cheapflightsfares deal was found by Cheapflights users on 1/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/215:00 pm
KEF
-
SEA
Nonstop8h 00m
Icelandair
mar. 2/32:35 pm
SEA
-
KEF
Nonstop7h 40m
Icelandair
Deal found 1/14$715
This Sembo deal was found by Cheapflights users on 1/13. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/294:50 pm
KEF
-
SEA
1 stop25h 36m
Multiple Airlines
lun. 2/210:11 am
SEA
-
KEF
1 stop12h 19m
Multiple Airlines
Deal found 1/13$736
This Trip.com deal was found by Cheapflights users on 1/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/94:30 pm
KEF
-
SEA
1 stop24h 21m
Multiple Airlines
mar. 3/173:35 pm
SEA
-
KEF
Nonstop7h 40m
Multiple Airlines
Deal found 1/14$747
This lastminute.com deal was found by Cheapflights users on 1/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/93:40 pm
KEF
-
SEA
2 stops37h 06m
Scandinavian Airlines
mar. 3/177:20 am
SEA
-
KEF
2 stops20h 25m
Scandinavian Airlines
Deal found 1/14$749
This Trip.com deal was found by Cheapflights users on 1/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/215:00 pm
KEF
-
SEA
1 stop25h 34m
Multiple Airlines
mar. 2/310:11 am
SEA
-
KEF
1 stop12h 19m
Multiple Airlines
Deal found 1/14$753
This Flighttix deal was found by Cheapflights users on 1/14. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/94:50 pm
KEF
-
PDX
Nonstop8h 10m
Multiple Airlines
lun. 3/167:25 am
PDX
-
KEF
1 stop15h 45m
Multiple Airlines
Deal found 1/14$769
This FlightHub deal was found by Cheapflights users on 1/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/810:40 am
KEF
-
PDX
1 stop11h 15m
Icelandair
jue. 9/173:30 pm
PDX
-
KEF
Nonstop7h 35m
Icelandair
Deal found 1/13$814
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/811:30 am
KEF
-
PDX
2 stops18h 14m
United Airlines
jue. 9/172:14 pm
PDX
-
KEF
1 stop11h 16m
United Airlines
Deal found 1/13$921

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to Washington 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 enero 14, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Washington that are best for you.

Fly from

Keflavik Intl

Fly to

Washington

Route

Depart

Return

Price

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

lun. 3/9

5:00 pm-6:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

mar. 3/17

3:35 pm-6:15 am

Nonstop7h 40m

$614

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

jue. 1/29

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

lun. 2/2

2:35 pm-6:15 am

Nonstop7h 40m

$695

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

lun. 3/9

4:30 pm-9:51 am

1 stop24h 21m

Seattle/Tacoma Intl

mar. 3/17

3:35 pm-6:15 am

Nonstop7h 40m

$747

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

lun. 3/9

3:40 pm-9:46 pm

2 stops37h 06m

Seattle/Tacoma Intl

mar. 3/17

7:20 am-10:45 am

2 stops20h 25m

$749

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

jue. 1/29

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

lun. 2/2

10:11 am-6:30 am

1 stop12h 19m

$759

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

vie. 2/27

4:50 pm-10:28 am

1 stop25h 38m

Seattle/Tacoma Intl

vie. 3/6

8:14 pm-6:05 am

1 stop25h 51m

$761

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

lun. 3/9

4:50 pm-6:00 pm

Nonstop8h 10m

Portland

lun. 3/16

7:25 am-6:10 am

1 stop15h 45m

$769

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

lun. 3/9

3:40 pm-10:10 pm

2 stops37h 30m

Portland

lun. 3/16

1:10 pm-10:45 am

2 stops38h 35m

$945

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

lun. 3/9

11:50 am-3:48 pm

2 stops34h 58m

Portland

lun. 3/16

6:45 pm-10:50 am

1 stop33h 05m

$1,503

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

sáb. 1/31

5:15 pm-10:25 am

3 stops49h 10m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 23 results
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Best time to book a flight from Keflavik Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to Washington

What is the cheapest time of day to fly from KEF to WA?

Find hourly flight availability from Keflavik Intl to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 14, 2026.

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

Weekly flight availability from Reykjavik Keflavik Intl Airport to State of Washington

Explore weekly flight availability from Keflavik Intl to Washington. 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 enero 14, 2026.

The most flights from KEF to USWA are scheduled on a Tuesday (3 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated enero 14, 2026.
Get a feel of what it's like to fly with Icelandair from Reykjavik Keflavik Intl Airport to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
596 reviews

Food

6.2

Overall

7.1

Entertainment

7.0

Boarding

7.2

Crew

8.0

Comfort

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.1
Good
596 reviews
Icelandair
7.1
Good
596 reviews

Food

6.2

Overall

7.1

Entertainment

7.0

Boarding

7.2

Crew

8.0

Comfort

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

Related info for your journey

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

  • How long is the flight from Reykjavik Keflavik Intl Airport to State of Washington?

    There are many flights that can get you from Reykjavik Keflavik Intl Airport to State of Washington in 8h. Fly via Icelandair, Scandinavian Airlines, or British Airways to get the fastest option. There are 3608 mi between Reykjavik Keflavik Intl Airport and State of Washington. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most reliable airlines from Reykjavik Keflavik Intl Airport to State of Washington?

    Consider Alaska Airlines (63%), Icelandair (63%) or airBaltic (47%) when booking your flight. These represent the most reliable airlines when flying from Reykjavik Keflavik Intl Airport to State of Washington.

  • What are the cheapest flights from Reykjavik Keflavik Intl Airport to State of Washington?

    Looking for the cheapest flight from Reykjavik Keflavik Intl Airport to State of Washington? While on average our users pay $558, our data indicates the cheapest price to be $491. The most popular route (Reykjavik Keflavik Intl - Seattle/Tacoma Intl), is priced around $627.

  • Can I find deals for flights from Keflavik Intl to Washington that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to Washington?

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

  • Can I find deals for business class flights from Keflavik Intl to Washington?

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

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Alternative routes for Keflavik Intl to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Keflavik Intl to Washington

Discover the top airline that operate flights from Keflavik Intl to Washington. 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 enero 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$639Average$803FlexibilityNo cancel feeOn-time76%

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