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$287+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$643
(Scandinavian Airlines)

One-way from

$287
(Trip.com)

Good round-trip deal

$659 or less

Good one-way deal

$570 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 June 12, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 9/1810:20 amKEF - SEA
1 stop34h 40mScandinavian Airlines
Mon 9/292:00 pmSEA - KEF
2 stops26h 50mScandinavian Airlines
Deal found 6/11$643
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Fri 9/267:45 pmKEF - SEA
Nonstop7h 55mIcelandair
Fri 10/173:45 pmSEA - KEF
Nonstop7h 30mIcelandair
Deal found 6/10$658
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Sat 7/269:35 amKEF - SEA
1 stop13h 34mMultiple Airlines
Sat 8/29:15 pmSEA - KEF
1 stop28h 00mMultiple Airlines
Deal found 6/11$664
This Gotogate deal was found by Cheapflights users on 6/11. 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 7/314:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Mon 8/43:20 pmPDX - KEF
Nonstop7h 35mIcelandair
Deal found 6/11$700
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/319:35 amKEF - PDX
2 stops30h 55mMultiple Airlines
Mon 8/43:10 pmPDX - KEF
2 stops30h 45mMultiple Airlines
Deal found 6/12$723
This Gotogate deal was found by Cheapflights users on 6/11. 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.
Sat 7/269:35 amKEF - SEA
2 stops33h 56mWestJet
Sat 8/24:50 pmSEA - KEF
1 stop32h 25mWestJet
Deal found 6/11$746
This Gotogate deal was found by Cheapflights users on 6/10. 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.
Sun 7/279:30 amKEF - SEA
2 stops30h 51mAir Canada
Tue 8/57:15 pmSEA - KEF
2 stops29h 55mAir Canada
Deal found 6/10$828
This KLM deal was found by Cheapflights users on 6/12. 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.
Fri 9/268:45 amKEF - SEA
2 stops20h 31mKLM
Fri 10/174:55 pmSEA - KEF
2 stops30h 25mKLM
Deal found 6/12$829
This Travelocity deal was found by Cheapflights users on 6/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/289:30 amKEF - PDX
2 stops30h 55mAir Canada
Sat 7/510:05 amPDX - KEF
2 stops15h 05mAir Canada
Deal found 6/12$843
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/239:30 amKEF - SEA
1 stop18h 11mUnited Airlines
Thu 8/77:00 amSEA - KEF
2 stops18h 10mUnited Airlines
Deal found 6/11$846
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/812:00 pmKEF - PDX
1 stop13h 45mUnited Airlines
Tue 7/157:00 amPDX - KEF
1 stop18h 30mUnited Airlines
Deal found 6/10$851
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:25 amKEF - SEA
1 stop18h 30mLufthansa
Mon 9/292:20 pmSEA - KEF
1 stop15h 45mLufthansa
Deal found 6/11$937

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 June 12, 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 9/18

10:20 am-2:00 pm

1 stop34h 40m

Seattle/Tacoma Intl

Mon 9/29

2:00 pm-11:50 pm

2 stops26h 50m

$643

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 9/26

7:45 pm-8:40 pm

Nonstop7h 55m

Seattle/Tacoma Intl

Fri 10/17

3:45 pm-6:15 am

Nonstop7h 30m

$658

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sat 7/26

9:35 am-4:09 pm

1 stop13h 34m

Seattle/Tacoma Intl

Sat 8/2

9:15 pm-8:15 am

1 stop28h 00m

$664

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Thu 7/31

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Mon 8/4

3:20 pm-5:55 am

Nonstop7h 35m

$700

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Thu 7/31

9:35 am-9:30 am

2 stops30h 55m

Portland

Mon 8/4

3:10 pm-4:55 am

2 stops30h 45m

$723

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sat 7/26

9:35 am-12:31 pm

2 stops33h 56m

Seattle/Tacoma Intl

Sat 8/2

4:50 pm-8:15 am

1 stop32h 25m

$746

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sun 7/27

9:30 am-9:21 am

2 stops30h 51m

Seattle/Tacoma Intl

Tue 8/5

7:15 pm-8:10 am

2 stops29h 55m

$828

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 9/26

8:45 am-10:16 pm

2 stops20h 31m

Seattle/Tacoma Intl

Fri 10/17

4:55 pm-6:20 am

2 stops30h 25m

$829

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sat 6/28

9:30 am-9:25 am

2 stops30h 55m

Portland

Sat 7/5

6:15 am-8:10 am

2 stops18h 55m

$843

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Wed 7/23

9:30 am-8:41 pm

1 stop18h 11m

Seattle/Tacoma Intl

Wed 8/6

12:20 am-8:10 am

2 stops24h 50m

$846

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 36 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 June 12, 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 June 12, 2025.

The most flights from KEF to USWA are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Reykjavik to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Reykjavik Keflavik Intl Airport to State of Washington one-way?

    The cheapest airlines for a one-way flight from Reykjavik Keflavik Intl Airport to State of Washington are WestJet ($287), Icelandair ($476), and Air Canada ($669).

  • 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 $1,359, our data indicates the cheapest price to be $492. The most popular route (Reykjavik Keflavik Intl - Seattle/Tacoma Intl), is priced around $643.

  • 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 July is currently the most expensive (average of $391). 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$639Average$759FlexibilityNo cancel feeOn-time76%

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