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Keflavik Intl

$338+ Cheap flights from Dulles Intl (IAD) to Keflavik Intl (KEF)

IAD — KEF
Nov 21 — Nov 281
Sat 11/21
Sat 11/28
1 adult, Economy
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Find cheap flights from Dulles Intl to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl are usually found in January or February, booked 81 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Dulles Intl to Keflavik Intl

Cheapest flights from Dulles Intl to Keflavik Intl

Mon 11/97:40 pm -
Nonstop5h 50m
Tue 11/174:50 pm -
Nonstop6h 40m
Deal found 10/21$449
Fri 11/277:40 pm -
Nonstop5h 50m
Wed 12/24:50 pm -
Nonstop6h 40m
Deal found 10/18$451
Mon 11/167:40 pm -
Nonstop5h 50m
Sat 11/214:50 pm -
Nonstop6h 40m
Deal found 10/21$456
Sun 12/137:40 pm -
Nonstop5h 50m
Thu 12/174:50 pm -
Nonstop6h 40m
Deal found 10/21$458
Mon 10/268:40 pm -
Nonstop5h 50m
Wed 11/44:50 pm -
Nonstop6h 40m
Deal found 10/17$459
Sat 11/147:40 pm -
Nonstop5h 50m
Sat 11/214:50 pm -
Nonstop6h 40m
Deal found 10/17$460
Sun 11/157:40 pm -
Nonstop5h 50m
Thu 11/194:50 pm -
Nonstop6h 40m
Deal found 10/19$461
Tue 11/177:40 pm -
Nonstop5h 50m
Tue 11/244:50 pm -
Nonstop6h 40m
Deal found 10/21$467
Tue 11/37:40 pm -
Nonstop5h 50m
Thu 11/124:50 pm -
Nonstop6h 40m
Deal found 10/18$476

Find flight deals from Dulles Intl to Keflavik Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$429
(eDestinos)

One-way from

$338
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$702

Good round-trip deal

$552 or less

Good one-way deal

$279 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Reykjavik Keflavik Intl flights.
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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. 10% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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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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Cheapflights Fare Finder

 
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Wed 2/24

10:30 pm-11:10 am

2 stops31h 40m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$373

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Wed 11/4

10:30 pm-11:40 pm

2 stops20h 10m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$393

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Fri 12/11

7:40 pm-6:30 am

Nonstop5h 50m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$421
Quickest round-trip

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Mon 1/4

8:30 pm-6:25 am

Nonstop4h 55m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$436

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Mon 1/4

8:10 pm-9:10 am

3 stops32h 00m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$481

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Wed 11/4

7:40 pm-6:30 am

Nonstop5h 50m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$495

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Fri 11/6

7:40 pm-6:30 am

Nonstop5h 50m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$498

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Fri 12/11

6:05 pm-10:50 am

1 stop11h 45m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$534

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Fri 11/13

3:37 pm-10:00 am

1 stop13h 23m

Reykjavik Keflavik Intl

Thu 11/19

12:00 pm-5:24 pm

1 stop10h 24m

$542

Washington, D.C.Reykjavik

IAD Washington, D.C. Dulles Intl - KEF Reykjavik Keflavik Intl

IADKEF

Washington, D.C. Dulles Intl

Tue 12/1

9:45 pm-10:40 am

1 stop31h 55m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$548

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from Dulles Intl to Keflavik Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Keflavik Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport is 80 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, January 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 $468). Flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $728). 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?

When flying from Washington, D.C. Dulles Intl Airport 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.

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport flights typically cost between $472 and $780 in January.
The cheapest round-trip price found within the last 5 days was $429 on Icelandair (Jan 16-Jan 23).

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

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
Our travel experts
Victoria M. Walker

Victoria M. Walker

Expert on PLAY

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
Bill Fink

Bill Fink

Expert on Icelandair

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

Reviews of airlines servicing Keflavik Intl

Peruse reviews from past customers who have flown with United Airlines and Icelandair 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.
United Airlines
7.3
Good
10,405 reviews

Food

6.7

Overall

7.3

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.3
Good
10,405 reviews
United Airlines
7.3
Good
10,405 reviews

Food

6.7

Overall

7.3

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Icelandair
7.0
Good
762 reviews
United Airlines
7.3
Good
10,405 reviews

Food

6.7

Overall

7.3

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

  • 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 50m. There are 2791 mi between Washington, D.C. Dulles Intl Airport and Reykjavik Keflavik Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Icelandair, at $378, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport. An alternate airline flying to your destination would be United Airlines. Icelandair is 37% 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 $1,092, our data shows the cheapest flight currently is $230. When looking at the most popular route, (Washington, D.C. Dulles Intl - Reykjavik Keflavik Intl), you can expect to pay $456 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, January 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 $468). Flying from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $728). 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
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Alternative routes for Dulles Intl to Keflavik Intl

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Top 2 airlines flying from Dulles Intl to Keflavik Intl

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$378Average$625FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$499Average$834FlexibilityNo cancel feeOn-time69%

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