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Keflavik Intl

$282+ Cheap flights from Dulles Intl (IAD) 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — KEF
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl are usually found in September or October, booked 60 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Dulles Intl to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 29, 2025.

Round-trip from

$349
(eDestinos)

One-way from

$282
(Mytrip)

Popular in

July

Cheapest in

September

Average price

$587

Good round-trip deal

$430 or less

Good one-way deal

$255 or less
From Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl
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One-way flight from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 11% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl.
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Find flight deals from Dulles Intl to Keflavik Intl

Cheapest flights from Dulles Intl to Keflavik Intl
Explore the most affordable flight options available from Dulles Intl to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

This eDestinos deal was found by Cheapflights users on 7/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/238:30 pmIAD - KEF
Nonstop5h 55mIcelandair
jue. 10/304:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 7/27$349

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 julio 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Keflavik Intl

Route

Depart

Return

Price

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

jue. 10/23

8:30 pm-6:25 am

Nonstop5h 55m

Reykjavik Keflavik Intl

jue. 10/30

4:50 pm-7:20 pm

Nonstop6h 30m

$349

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

dom. 8/10

11:58 am-4:45 am

3 stops36h 47m

$282

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

sáb. 9/27

11:15 pm-9:05 am

Nonstop5h 50m

$362

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

vie. 9/12

10:20 am-8:10 am

2 stops41h 50m

$385

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

jue. 10/16

10:05 pm-3:20 pm

1 stop13h 15m

$389

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

mar. 8/5

9:40 am-6:20 am

1 stop16h 40m

$395

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

dom. 8/31

10:10 pm-8:30 am

1 stop30h 20m

$408

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

dom. 10/26

5:25 pm-1:20 pm

1 stop15h 55m

$422

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

dom. 9/21

12:35 pm-9:30 am

2 stops16h 55m

$425

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

dom. 10/26

11:55 pm-3:15 pm

2 stops35h 20m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

The best insider tips for Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport trip
Airlines
Icelandair

Icelandair’s Stopover program allows a 3-7 day Iceland visit at no extra charge.


Saga Premium offers noise-cancelling headphones and generous legroom for a comfortable journey.

Read more about Icelandairby Bill Fink
PLAY

PLAY’s Basic Plus fare includes priority boarding and a carry-on bag.


PLAY offers a free stopover in Reykjavik for up to 10 days.

Read more about PLAYby Victoria M. Walker
Our travel experts
Bill Fink

Bill Fink

Expert on Icelandair

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Victoria M. Walker

Victoria M. Walker

Expert on PLAY

Victoria M. Walker

Victoria M. Walker

Victoria M. Walker is an award-winning travel reporter who writes the “Carrying On” newsletter. Victoria writes about airlines and hotels and fell in love with travel after her first flight in 2014. She was raised in Virginia and is based in Brooklyn, NY. She is interested in finding the best pizza and coffee in every city she visits.

Read more

Best time to book a flight from Dulles Intl to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Dulles 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 Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Keflavik Intl. Price data was last updated on July 25, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport is 60 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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 IAD to KEF?

Find hourly flight availability from Dulles Intl 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 julio 29, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 20% versus a flight at noon.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

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 julio 29, 2025.
Peruse reviews from past customers who have flown with Delta, SWISS, and United Airlines from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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
1,683 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
Scandinavian Airlines
7.3
Good
1,449 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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 Dulles Intl 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 is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport round-trip?

    Icelandair, at $349, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport.. Icelandair is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport one-way?

    $362 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Air Canada and Scandinavian Airlines, with prices starting from $385 and $389, respectively.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

    While on average a flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport is generally $1,247, our data shows the cheapest flight currently is $202. When looking at the most popular route, (Washington, D.C. Dulles Intl - Reykjavik Keflavik Intl), you can expect to pay $358 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Top 3 airlines flying from Dulles Intl to Keflavik Intl

Discover the top 3 airlines that operate flights from Dulles Intl 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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$267Average$371FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$351Average$546FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$738Average$777FlexibilityNo cancel feeOn-time62%

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