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Keflavik Intl

$274+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — KEF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 Sunday 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 September 11, 2025.

Round-trip from

$315
(Gotogate)

One-way from

$274
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$398

Good round-trip deal

$435 or less

Good one-way deal

$392 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. 12% potential increase in price ($74 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 September 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 September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/8. 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.
Mon 10/68:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Wed 10/157:45 pmKEF - IAD
Nonstop6h 25mIcelandair
Deal found 9/8$315
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Sun 9/288:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Fri 10/34:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 9/9$316
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:40 pmIAD - KEF
Nonstop5h 55mIcelandair
Sat 11/154:50 pmKEF - IAD
Nonstop6h 40mIcelandair
Deal found 9/9$317
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Thu 10/24:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 9/10$318
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Wed 10/157:45 pmKEF - IAD
Nonstop6h 25mIcelandair
Deal found 9/11$319
This Gurufare deal was found by Cheapflights users on 9/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Wed 10/224:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 9/11$320
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:40 pmIAD - KEF
Nonstop5h 55mIcelandair
Mon 12/154:50 pmKEF - IAD
Nonstop6h 40mIcelandair
Deal found 9/10$328
This Icelandair deal was found by Cheapflights users on 9/8. 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.
Wed 12/247:40 pmIAD - KEF
Nonstop5h 55mIcelandair
Mon 12/294:50 pmKEF - IAD
Nonstop6h 40mIcelandair
Deal found 9/8$329
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:30 pmIAD - KEF
Nonstop5h 55mIcelandair
Sat 10/47:45 pmKEF - IAD
Nonstop6h 25mIcelandair
Deal found 9/10$330
This CrystalTravel deal was found by Cheapflights users on 9/10. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:15 pmIAD - KEF
Nonstop5h 50mIcelandair
Thu 9/254:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 9/10$331
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:40 pmIAD - KEF
Nonstop5h 55mIcelandair
Mon 12/154:50 pmKEF - IAD
Nonstop6h 40mIcelandair
Deal found 9/10$332
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sun 10/1211:15 pmIAD - KEF
Nonstop5h 50mIcelandair
Thu 10/234:50 pmKEF - IAD
Nonstop6h 30mIcelandair
Deal found 9/11$342

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 September 11, 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

Wed 12/24

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Mon 12/29

4:50 pm-6:30 pm

Nonstop6h 40m

$329

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 11/17

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Fri 11/21

4:50 pm-6:30 pm

Nonstop6h 40m

$330

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Tue 11/11

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Tue 11/25

4:50 pm-6:30 pm

Nonstop6h 40m

$330

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Sun 9/28

8:30 pm-6:25 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Thu 10/2

4:50 pm-7:20 pm

Nonstop6h 30m

$330

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Tue 12/9

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Tue 12/16

4:50 pm-6:30 pm

Nonstop6h 40m

$442

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 12/22

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Tue 1/6

4:50 pm-6:30 pm

Nonstop6h 40m

$452

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Thu 9/25

8:30 pm-6:25 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Fri 10/3

7:45 pm-10:10 pm

Nonstop6h 25m

$492

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 12/22

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Mon 1/5

4:50 pm-6:30 pm

Nonstop6h 40m

$502

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Thu 12/4

7:59 pm-3:25 pm

2 stops38h 26m

Reykjavik Keflavik Intl

Mon 12/8

1:00 pm-5:15 pm

2 stops57h 15m

$507

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 11/17

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Mon 12/1

4:50 pm-6:30 pm

Nonstop6h 40m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 23 results
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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 August 29, 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 $655). 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 September 11, 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 17% versus a flight at noon.

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 September 11, 2025.
Peruse reviews from past customers who have flown with JetBlue, Icelandair, and PLAY 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.
JetBlue
7.2
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Overall

7.2

Food

6.7

Crew

8.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
JetBlue
7.2
Good
2,913 reviews
JetBlue
7.2
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Overall

7.2

Food

6.7

Crew

8.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Icelandair
7.0
Good
546 reviews
JetBlue
7.2
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Overall

7.2

Food

6.7

Crew

8.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
PLAY
7.0
Good
103 reviews
JetBlue
7.2
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Overall

7.2

Food

6.7

Crew

8.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport?

    Departing from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport will take you 5h 55m. There are 2791 mi between Washington, D.C. Dulles Intl Airport and Reykjavik Keflavik Intl Airport. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport round-trip?

    PLAY, at $266, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport.Alternate airlines to your destination round-trip include Icelandair and JetBlue. PLAY is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $1,199, our data shows the cheapest flight currently is $277. When looking at the most popular route, (Washington, D.C. Dulles Intl - Reykjavik Keflavik Intl), you can expect to pay $305 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 $655). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$266Average$372FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$342Average$545FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$738Average$777FlexibilityNo cancel feeOn-time62%

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