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$409+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SEA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$621
(Mytrip)

One-way from

$409
(Kiwi.com)

Good round-trip deal

$977 or less

Good one-way deal

$578 or less
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 round-trip 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 September 16, 2025.

This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:35 amKEF - SEA
2 stops16h 01mMultiple Airlines
Mon 10/65:30 amSEA - KEF
3 stops19h 45mMultiple Airlines
Deal found 9/16$621
This ResecentrumGruppen deal was found by Cheapflights users on 9/16. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:00 pmKEF - SEA
Nonstop8h 00mIcelandair
Thu 11/132:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Deal found 9/16$630
This Ticket deal was found by Cheapflights users on 9/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:50 pmKEF - PDX
Nonstop8h 10mIcelandair
Sat 11/152:45 pmPDX - KEF
Nonstop7h 30mIcelandair
Deal found 9/14$648
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:00 pmKEF - SEA
Nonstop8h 00mIcelandair
Thu 11/62:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Deal found 9/15$718
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:00 pmKEF - SEA
Nonstop8h 00mIcelandair
Fri 11/72:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Deal found 9/16$722
This Booking.com deal was found by Cheapflights users on 9/16. 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.
Fri 10/244:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Mon 10/273:45 pmPDX - KEF
Nonstop7h 30mIcelandair
Deal found 9/16$722
This Icelandair deal was found by Cheapflights users on 9/14. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:50 pmKEF - PDX
Nonstop8h 10mMultiple Airlines
Sat 11/157:40 amPDX - KEF
1 stop14h 25mMultiple Airlines
Deal found 9/14$828
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Tue 10/211:25 pmPDX - KEF
1 stop9h 50mIcelandair
Deal found 9/14$842
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:50 pmKEF - PDX
Nonstop8h 05mMultiple Airlines
Tue 10/2112:43 pmPDX - KEF
3 stops33h 12mMultiple Airlines
Deal found 9/14$864
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:05 pmKEF - PDX
2 stops29h 01mMultiple Airlines
Sat 11/13:45 pmPDX - KEF
Nonstop7h 30mMultiple Airlines
Deal found 9/14$869
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/247:45 pmKEF - PDX
1 stop11h 33mIcelandair
Sat 11/13:45 pmPDX - KEF
Nonstop7h 30mIcelandair
Deal found 9/14$871

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 September 16, 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

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 10/2

9:35 am-6:36 pm

2 stops16h 01m

Seattle/Tacoma Intl

Mon 10/6

5:30 am-8:15 am

3 stops19h 45m

$621

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 11/7

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Thu 11/13

2:35 pm-6:15 am

Nonstop7h 40m

$643

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 10/30

5:00 pm-6:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Thu 11/6

2:35 pm-6:15 am

Nonstop7h 40m

$718

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 10/24

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Mon 10/27

3:45 pm-6:15 am

Nonstop7h 30m

$722

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 10/16

7:45 pm-8:40 pm

Nonstop7h 55m

Seattle/Tacoma Intl

Mon 10/20

7:00 pm-9:25 am

Nonstop7h 25m

$759

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 11/9

5:00 pm-12:38 pm

1 stop27h 38m

Portland

Sat 11/15

2:45 pm-6:15 am

Nonstop7h 30m

$810

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 11/9

4:50 pm-5:00 pm

Nonstop8h 10m

Portland

Sat 11/15

7:40 am-6:05 am

1 stop14h 25m

$828

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 11/7

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Thu 11/13

6:25 pm-6:35 am

1 stop28h 10m

$833

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Tue 10/14

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Tue 10/21

1:25 pm-6:15 am

1 stop9h 50m

$842

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 10/24

3:05 pm-1:06 pm

2 stops29h 01m

Portland

Sat 11/1

3:45 pm-6:15 am

Nonstop7h 30m

$869

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 32 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 September 16, 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.

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 September 16, 2025.

The most flights from KEF to USWA 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).

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 September 16, 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
7.0
Good
544 reviews

Overall

7.0

Crew

8.0

Boarding

7.2

Comfort

6.9

Food

6.2

Entertainment

7.0

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
7.0
Good
544 reviews
Icelandair
7.0
Good
544 reviews

Overall

7.0

Crew

8.0

Boarding

7.2

Comfort

6.9

Food

6.2

Entertainment

7.0

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. Fly via Icelandair to get the fastest option. There are 3608 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 $1,682, our data indicates the cheapest price to be $477. The most popular route (Reykjavik Keflavik Intl - Seattle/Tacoma Intl), is priced around $647.

  • 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.

  • What is the cheapest month to book a flight from Reykjavik Keflavik Intl Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to State of Washington (average of $238). Flying from Reykjavik Keflavik Intl Airport to State of Washington in June is currently the most expensive (average of $387). 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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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$639Average$798FlexibilityNo cancel feeOn-time76%

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