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$349+ Cheap flights from Keflavik Intl (KEF) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:50 pmKEF - PDX
Nonstop8h 10mIcelandair
Tue 11/182:45 pmPDX - KEF
Nonstop7h 30mIcelandair
Deal found 10/29$349
This Booking.com deal was found by Cheapflights users on 10/30. 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.
Thu 12/45:00 pmKEF - SEA
Nonstop8h 00mIcelandair
Wed 12/102:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Deal found 10/30$382
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:55 pmKEF - SEA
1 stop13h 35mMultiple Airlines
Wed 12/107:55 amSEA - KEF
1 stop14h 10mMultiple Airlines
Deal found 10/29$658
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:00 pmKEF - SEA
Nonstop8h 00mIcelandair
Tue 12/302:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Deal found 10/29$694
This Icelandair deal was found by Cheapflights users on 10/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:50 pmKEF - PDX
Nonstop8h 10mMultiple Airlines
Tue 11/187:00 amPDX - KEF
1 stop15h 05mMultiple Airlines
Deal found 10/29$723
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/134:45 pmKEF - PDX
1 stop30h 43mMultiple Airlines
Sat 12/207:08 pmPDX - KEF
1 stop27h 27mMultiple Airlines
Deal found 10/29$1,080
This Scandinavian Airlines deal was found by Cheapflights users on 10/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:35 amKEF - PDX
2 stops21h 08mScandinavian Airlines
Tue 11/187:05 amPDX - KEF
2 stops19h 40mScandinavian Airlines
Deal found 10/29$1,193

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$321
(ResecentrumGruppen)

Good one-way deal

$647 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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Price to beat on a one-way flight from Reykjavik Keflavik Intl to Washington.
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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 October 30, 2025.
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

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 11/14

4:50 pm-5:00 pm

Nonstop8h 10m

Portland

Tue 11/18

2:45 pm-6:15 am

Nonstop7h 30m

$349

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 12/4

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Wed 12/10

2:35 pm-6:15 am

Nonstop7h 40m

$382

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 12/4

4:55 pm-10:30 pm

1 stop13h 35m

Seattle/Tacoma Intl

Wed 12/10

7:55 am-6:05 am

1 stop14h 10m

$658

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 12/16

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Tue 12/30

2:35 pm-6:15 am

Nonstop7h 40m

$695

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 11/14

4:50 pm-5:00 pm

Nonstop8h 10m

Portland

Tue 11/18

7:00 am-6:05 am

1 stop15h 05m

$723

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sat 12/13

4:45 pm-3:28 pm

1 stop30h 43m

Portland

Sat 12/20

7:08 pm-6:35 am

1 stop27h 27m

$1,080

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 11/14

7:35 am-8:43 pm

2 stops21h 08m

Portland

Tue 11/18

7:05 am-10:45 am

2 stops19h 40m

$1,193

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 11/21

4:50 pm-5:00 pm

Nonstop8h 10m

$388

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sun 2/22

4:30 pm-10:36 am

1 stop26h 06m

$452

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 11/24

5:00 pm-5:00 pm

Nonstop8h 00m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 24 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 October 30, 2025.

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.

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 October 30, 2025.
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
562 reviews

Overall

7.1

Boarding

7.2

Food

6.2

Crew

8.1

Entertainment

7.0

Comfort

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient
Icelandair
7.1
Good
562 reviews
Icelandair
7.1
Good
562 reviews

Overall

7.1

Boarding

7.2

Food

6.2

Crew

8.1

Entertainment

7.0

Comfort

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient

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 10m. Fly via Icelandair to get the fastest option. There are 3724 mi between Reykjavik Keflavik Intl Airport and State of Washington. Most flights are nonstop.

  • 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 $1,316, our data indicates the cheapest price to be $488. The most popular route (Reykjavik Keflavik Intl - Seattle/Tacoma Intl), is priced around $385.

  • 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.

See more FAQs

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$639Average$759FlexibilityNo cancel feeOn-time76%

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