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$265+ 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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$536
(Kiwi.com)

One-way from

$265
(Kiwi.com)

Good round-trip deal

$642 or less

Good one-way deal

$531 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 April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/199:35 amKEF - SEA
1 stop10h 23mWestJet
Sun 6/18:10 amSEA - KEF
1 stop17h 05mWestJet
Deal found 4/17$536
This Mytrip deal was found by Cheapflights users on 4/17. 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.
Mon 5/199:35 amKEF - SEA
2 stops30h 43mMultiple Airlines
Tue 5/272:55 pmSEA - KEF
3 stops34h 20mMultiple Airlines
Deal found 4/17$593
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1911:05 amKEF - SEA
2 stops57h 45mScandinavian Airlines
Fri 5/304:00 pmSEA - KEF
1 stop17h 50mScandinavian Airlines
Deal found 4/17$641
This SmartFares deal was found by Cheapflights users on 4/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/194:50 pmKEF - SEA
Nonstop8h 00mIcelandair
Fri 5/303:45 pmSEA - KEF
Nonstop7h 30mIcelandair
Deal found 4/17$679
This Flightnetwork deal was found by Cheapflights users on 4/17. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/184:50 pmKEF - PDX
Nonstop8h 05mMultiple Airlines
Tue 7/291:45 pmPDX - KEF
1 stop11h 30mMultiple Airlines
Deal found 4/17$785
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/188:50 amKEF - SEA
1 stop18h 05mDelta
Thu 5/298:35 amSEA - KEF
1 stop15h 25mDelta
Deal found 4/17$824
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2012:00 pmKEF - SEA
2 stops19h 59mUnited Airlines
Tue 5/277:20 amSEA - KEF
3 stops18h 10mUnited Airlines
Deal found 4/17$844
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/188:50 amKEF - SEA
2 stops20h 35mKLM
Wed 5/2811:55 amSEA - KEF
1 stop12h 05mKLM
Deal found 4/17$849
This Air France deal was found by Cheapflights users on 4/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1911:25 amKEF - SEA
2 stops19h 22mAir France
Thu 5/298:35 amSEA - KEF
2 stops14h 45mAir France
Deal found 4/17$851
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/189:35 amKEF - PDX
2 stops21h 01mWestJet
Tue 7/291:45 pmPDX - KEF
1 stop11h 30mWestJet
Deal found 4/17$857
This Lufthansa deal was found by Cheapflights users on 4/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/171:15 amKEF - SEA
1 stop22h 44mLufthansa
Fri 5/306:50 pmSEA - KEF
1 stop22h 20mLufthansa
Deal found 4/17$858
This Virgin Atlantic deal was found by Cheapflights users on 4/17. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1911:25 amKEF - SEA
1 stop18h 18mVirgin Atlantic
Tue 5/275:30 amSEA - KEF
2 stops21h 00mVirgin Atlantic
Deal found 4/17$887

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 April 17, 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

Mon 5/19

9:35 am-12:58 pm

1 stop10h 23m

Seattle/Tacoma Intl

Sun 6/1

8:10 am-8:15 am

1 stop17h 05m

$536

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 5/19

9:35 am-9:18 am

2 stops30h 43m

Seattle/Tacoma Intl

Tue 5/27

2:55 pm-8:15 am

3 stops34h 20m

$593

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 5/19

11:05 am-1:50 pm

2 stops57h 45m

Seattle/Tacoma Intl

Fri 5/30

4:00 pm-4:50 pm

1 stop17h 50m

$641

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 5/19

4:50 pm-5:50 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Fri 5/30

3:45 pm-6:15 am

Nonstop7h 30m

$679

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 7/18

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Tue 7/29

1:45 pm-8:15 am

1 stop11h 30m

$785

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sun 5/18

8:50 am-7:55 pm

1 stop18h 05m

Seattle/Tacoma Intl

Thu 5/29

8:35 am-7:00 am

1 stop15h 25m

$824

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 5/20

12:00 pm-9:02 pm

2 stops16h 02m

Seattle/Tacoma Intl

Mon 5/26

10:15 pm-8:30 am

2 stops27h 15m

$844

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sun 5/18

8:50 am-10:25 pm

2 stops20h 35m

Seattle/Tacoma Intl

Fri 5/30

11:55 am-7:00 am

1 stop12h 05m

$849

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 5/19

11:25 am-11:47 pm

2 stops19h 22m

Seattle/Tacoma Intl

Thu 5/29

8:35 am-6:20 am

2 stops14h 45m

$851

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 7/18

9:35 am-11:36 pm

2 stops21h 01m

Portland

Tue 7/29

1:45 pm-8:15 am

1 stop11h 30m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 39 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 April 17, 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 April 17, 2025.

The most flights from KEF to USWA are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 April 17, 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
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 ($265), Icelandair ($467), and British Airways ($694).

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

    Consider Alaska Airlines (95%), Icelandair (95%) or airBaltic (89%) 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 $1,058, our data indicates the cheapest price to be $454. The most popular route (Reykjavik Keflavik Intl - Seattle/Tacoma Intl), is priced around $590.

  • 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 $411). 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.

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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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$592Average$759FlexibilityNo cancel feeOn-time76%

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