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Keflavik Intl

$223+ Cheap flights from Washington to Keflavik Intl (KEF)

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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Washington to Keflavik Intl

Keep the following information in mind while searching for Washington to Keflavik Intl flight deals. Data was last updated February 20, 2025.

Round-trip from

$537
(Kiwi.com)

One-way from

$223
(Trip.com)

Good round-trip deal

$585 or less

Good one-way deal

$414 or less
From Washington to Reykjavik Keflavik Intl
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One-way flight from Washington to Reykjavik Keflavik Intl
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Price to beat on a round-trip flight from Washington to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Washington to Reykjavik Keflavik Intl.
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Find flight deals from Washington to Keflavik Intl

Cheapest flights from Washington to Keflavik Intl
Explore the most affordable flight options available from Washington to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Icelandair deal was found by Cheapflights users on 2/19. 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.
Thu 4/247:00 pmSEA - KEF
Nonstop7h 25mIcelandair
Mon 5/57:45 pmKEF - SEA
Nonstop7h 55mIcelandair
Deal found 2/19$560
This Delta deal was found by Cheapflights users on 2/19. 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 4/139:45 pmSEA - KEF
2 stops28h 45mDelta
Tue 4/2211:25 amKEF - SEA
2 stops32h 01mDelta
Deal found 2/19$563
This Air France deal was found by Cheapflights users on 2/19. 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.
Tue 4/16:00 amSEA - KEF
2 stops20h 30mAir France
Thu 4/1011:25 amKEF - SEA
1 stop14h 35mAir France
Deal found 2/19$565
This Air Canada deal was found by Cheapflights users on 2/19. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:40 pmPDX - KEF
2 stops29h 55mAir Canada
Tue 6/1010:00 amKEF - PDX
2 stops30h 30mAir Canada
Deal found 2/19$565
This Ovago deal was found by Cheapflights users on 2/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/117:50 pmSEA - KEF
1 stop31h 55mBritish Airways
Thu 3/2011:40 amKEF - SEA
1 stop31h 40mBritish Airways
Deal found 2/19$566
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Tue 4/19:48 amSEA - KEF
2 stops36h 07mMultiple Airlines
Tue 4/83:45 pmKEF - SEA
3 stops35h 16mMultiple Airlines
Deal found 2/19$567
This FlightHub deal was found by Cheapflights users on 2/19. 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.
Mon 6/23:20 pmPDX - KEF
Nonstop7h 35mIcelandair
Tue 6/104:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Deal found 2/19$576
This Mytrip deal was found by Cheapflights users on 2/20. 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 3/246:50 pmPDX - KEF
2 stops27h 10mMultiple Airlines
Sat 4/123:45 pmKEF - PDX
3 stops47h 37mMultiple Airlines
Deal found 2/20$577
This Justfly.com deal was found by Cheapflights users on 2/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:15 pmSEA - KEF
2 stops30h 00mAir Canada
Thu 7/249:30 amKEF - SEA
2 stops43h 46mAir Canada
Deal found 2/19$593
This StudentUniverse deal was found by Cheapflights users on 2/20. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/231:35 pmSEA - KEF
2 stops19h 55mFinnair
Wed 4/308:45 amKEF - SEA
2 stops21h 24mFinnair
Deal found 2/20$603
This Lufthansa deal was found by Cheapflights users on 2/18. 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 4/26:50 pmSEA - KEF
1 stop22h 20mLufthansa
Thu 4/102:20 pmKEF - SEA
1 stop29h 05mLufthansa
Deal found 2/18$606
This Delta deal was found by Cheapflights users on 2/19. 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.
Tue 10/77:00 amPDX - KEF
1 stop19h 30mDelta
Thu 10/2311:25 amKEF - PDX
1 stop19h 02mDelta
Deal found 2/19$610

Find flights from Washington to Keflavik Intl within your budget

Customize your flight search to find flights from Washington to Keflavik Intl 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 February 20, 2025.

Fly from

Washington

Fly to

Keflavik Intl

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 4/24

7:00 pm-9:25 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Mon 5/5

7:45 pm-8:40 pm

Nonstop7h 55m

$560

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 4/13

10:59 pm-9:30 am

1 stop27h 31m

Reykjavik Keflavik Intl

Tue 4/22

11:25 am-10:14 am

1 stop29h 49m

$563

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 4/1

6:00 am-9:30 am

2 stops20h 30m

Reykjavik Keflavik Intl

Thu 4/10

11:25 am-7:00 pm

1 stop14h 35m

$565

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 3/11

7:50 pm-10:45 am

1 stop31h 55m

Reykjavik Keflavik Intl

Thu 3/20

11:40 am-12:20 pm

1 stop31h 40m

$566

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 4/1

9:48 am-4:55 am

2 stops36h 07m

Reykjavik Keflavik Intl

Tue 4/8

3:45 pm-8:01 pm

3 stops35h 16m

$567

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mon 3/24

6:50 pm-5:00 am

2 stops27h 10m

Reykjavik Keflavik Intl

Sat 4/12

3:45 pm-8:22 am

3 stops47h 37m

$577

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 4/23

1:35 pm-4:30 pm

2 stops19h 55m

Reykjavik Keflavik Intl

Wed 4/30

8:45 am-11:09 pm

2 stops21h 24m

$603

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 4/2

6:50 pm-12:10 am

1 stop22h 20m

Reykjavik Keflavik Intl

Thu 4/10

2:20 pm-12:25 pm

1 stop29h 05m

$606

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Sun 4/27

7:00 am-9:30 am

1 stop19h 30m

Reykjavik Keflavik Intl

Fri 5/16

11:25 am-11:25 pm

1 stop19h 00m

$621

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mon 5/5

3:20 pm-5:55 am

Nonstop7h 35m

Reykjavik Keflavik Intl

Sat 5/10

4:50 pm-5:55 pm

Nonstop8h 05m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 30 results
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Best time to book a flight from Washington to Keflavik Intl

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

Travel insights for flights from Washington to Keflavik Intl

Get recent, data-driven insights about flights from Washington to Keflavik Intl including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from State of Washington to Reykjavik Keflavik Intl Airport (average of $328). Flying from State of Washington to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $657). 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.

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

Find hourly flight availability from Washington to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from State of Washington to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Washington to Keflavik Intl. 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 February 20, 2025.

The most flights from USWA to KEF are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Keflavik Intl by month

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

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

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

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, 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 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated February 20, 2025.
Read through reviews of airlines operating flights from Washington to Reykjavik, such as Delta, Alaska Airlines and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines
8.0
Very good
9,697 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington to Keflavik Intl. 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 State of Washington to Reykjavik Keflavik Intl Airport one-way?

    $367 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and Icelandair, with prices starting from $456 and $457, respectively.

  • What are the most popular routes from State of Washington to Reykjavik Keflavik Intl Airport?

    While some choose either Portland - Reykjavik Keflavik Intl or Spokane - Reykjavik Keflavik Intl, Seattle/Tacoma Intl - Reykjavik Keflavik Intl is the most popular route from State of Washington to Reykjavik Keflavik Intl Airport.

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

    Consider Alaska Airlines (88%), Icelandair (88%) or airBaltic (70%) when booking your flight. These represent the most reliable airlines when flying from State of Washington to Reykjavik Keflavik Intl Airport.

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

    On average you can expect to pay $1,318 for a flight from State of Washington to Reykjavik Keflavik Intl Airport. The cheapest flight overall is $319 while the most popular route, (Seattle/Tacoma Intl - Reykjavik Keflavik Intl) is currently priced at $488.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Keflavik Intl 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 State of Washington to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Reykjavik Keflavik Intl Airport (average of $328). Flying from State of Washington to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $657). 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 Washington to Keflavik Intl

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Top 4 airlines flying from Washington to Keflavik Intl

Discover the top 4 airlines that operate flights from Washington to Keflavik Intl. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$417Average$556FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$454Average$504FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$485Average$593FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$638Average$895FlexibilityNo cancel feeOn-time76%
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