HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$317+ Cheap flights from Washington, D.C. (WAS) 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KEF
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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. to Reykjavik Keflavik Intl are usually found in October or September, booked 45 days in advance, depart on a Sunday or Wednesday and return on a Monday

Cheap flight deals from Washington, D.C. to Keflavik Intl

Cheapest flights from Washington, D.C. to Keflavik Intl
Explore the most affordable flight options available from Washington, D.C. to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This CrystalTravel deal was found by Cheapflights users on 2/4. 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 2/77:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Wed 2/115:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/4$416
This Mytrip deal was found by Cheapflights users on 2/3. 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 3/37:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Tue 3/105:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/3$417
This CrystalTravel deal was found by Cheapflights users on 2/4. 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.
Fri 2/67:40 pm
IAD
-
KEF
Nonstop5h 55m
Icelandair
Thu 2/124:50 pm
KEF
-
IAD
Nonstop6h 40m
Icelandair
Deal found 2/4$418
This Mytrip deal was found by Cheapflights users on 2/3. 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.
Wed 4/88:30 pm
BWI
-
KEF
Nonstop5h 55m
Icelandair
Mon 4/205:00 pm
KEF
-
BWI
Nonstop6h 25m
Icelandair
Deal found 2/3$419
This CrystalTravel deal was found by Cheapflights users on 2/3. 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.
Sun 2/87:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Fri 2/135:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/3$422
This Mytrip deal was found by Cheapflights users on 2/2. 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.
Sat 2/217:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Wed 2/255:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/2$423
This Mytrip deal was found by Cheapflights users on 2/2. 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 2/27:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Wed 2/115:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/2$424
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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.
Sat 4/411:20 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Thu 4/97:50 pm
KEF
-
BWI
Nonstop6h 25m
Icelandair
Deal found 2/4$425
This FlightHub deal was found by Cheapflights users on 2/4. 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 3/98:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Wed 3/185:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/4$426
This FlightHub deal was found by Cheapflights users on 2/1. 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.
Sun 2/17:40 pm
BWI
-
KEF
Nonstop5h 50m
Icelandair
Thu 2/55:00 pm
KEF
-
BWI
Nonstop6h 40m
Icelandair
Deal found 2/1$427
This deal was found by Cheapflights users on 2/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/77:40 pm
IAD
-
KEF
Nonstop5h 55m
Icelandair
Wed 2/114:50 pm
KEF
-
IAD
Nonstop6h 40m
Icelandair
Deal found 2/3$429
This Mytrip deal was found by Cheapflights users on 2/3. 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 3/37:40 pm
IAD
-
KEF
Nonstop5h 55m
Icelandair
Tue 3/104:50 pm
KEF
-
IAD
Nonstop6h 40m
Icelandair
Deal found 2/3$431

Find flight deals from Washington, D.C. to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$416
(CrystalTravel)

One-way from

$317
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$397

Good round-trip deal

$459 or less

Good one-way deal

$304 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Reykjavik Keflavik Intl flights.
Search Deals
From Washington, D.C. (WAS) to Reykjavik Keflavik Intl
Search Deals
One-way flight from Washington, D.C. (WAS) to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Reykjavik Keflavik Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Washington, D.C.

Fly to

Keflavik Intl

Route

Depart

Return

Price

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Tue 2/10

7:40 pm-6:35 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Sat 2/14

4:50 pm-6:30 pm

Nonstop6h 40m

$418

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 4/13

8:30 pm-6:25 am

Nonstop5h 55m

Reykjavik Keflavik Intl

Mon 5/4

4:50 pm-7:20 pm

Nonstop6h 30m

$493

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Tue 4/21

6:50 pm-9:30 am

1 stop10h 40m

Reykjavik Keflavik Intl

Mon 4/27

11:25 am-6:08 pm

1 stop10h 43m

$539

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Thu 4/16

6:50 pm-9:30 am

1 stop10h 40m

Reykjavik Keflavik Intl

Mon 4/20

11:25 am-6:08 pm

1 stop10h 43m

$540

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Sun 4/19

12:45 pm-9:30 am

1 stop16h 45m

Reykjavik Keflavik Intl

Mon 4/27

11:25 am-6:08 pm

1 stop10h 43m

$540

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Fri 4/17

5:00 pm-9:30 am

1 stop12h 30m

Reykjavik Keflavik Intl

Wed 4/22

11:25 am-5:30 pm

1 stop10h 05m

$540

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sun 4/12

5:09 pm-9:30 am

1 stop12h 21m

Reykjavik Keflavik Intl

Sun 4/26

11:25 am-10:41 pm

1 stop15h 16m

$540

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Mon 4/6

8:20 pm-4:15 pm

1 stop15h 55m

Reykjavik Keflavik Intl

Thu 4/9

5:05 pm-4:50 pm

1 stop27h 45m

$543

Washington, D.C.Reykjavik

IAD - KEF

IADKEF

Washington, D.C. Dulles Intl

Tue 4/21

10:11 am-9:30 am

2 stops19h 19m

Reykjavik Keflavik Intl

Mon 4/27

11:25 am-6:08 pm

1 stop10h 43m

$544

BaltimoreReykjavik

BWI - KEF

BWIKEF

Baltimore/Washington

Sun 4/19

10:11 am-9:30 am

2 stops19h 19m

Reykjavik Keflavik Intl

Mon 4/27

11:25 am-10:57 pm

2 stops15h 32m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 58 results
1
2
3
...
6

Compare providers for flights from Washington, D.C. to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Keflavik Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*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.-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.-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.-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.-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.-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 Washington, D.C. to Keflavik Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Keflavik Intl. Price data was last updated on January 30, 2026.

The best time to book flights from Washington, D.C. to Reykjavik Keflavik Intl Airport is 45 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. to Reykjavik Keflavik Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Reykjavik Keflavik Intl Airport (average of $251). Flying from Washington, D.C. to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $388). 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 WAS to KEF?

Find hourly flight availability from Washington, D.C. 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 5, 2026.

When flying from Washington, D.C. 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 often are flights from Washington, D.C. to Reykjavik delayed?

About 9% of weekly flights between Washington, D.C. and Reykjavik have experienced delays in the past year, with the average delay time being 122 minutes.

What is the most punctual flight time for Washington, D.C. to Reykjavik flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Reykjavik flights?

Over the last year, Icelandair have had the lowest number of delays on this route, with just 9% of flights being delayed.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Reykjavik Keflavik Intl Airport trip
Our travel experts
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
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

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 5, 2026.
Get a feel of what it's like to fly with United Airlines, Icelandair, and PLAY from Washington, D.C. to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,235 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,235 reviews
United Airlines
7.4
Good
9,235 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
606 reviews
United Airlines
7.4
Good
9,235 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
PLAY
7.0
Good
United Airlines
7.4
Good
9,235 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Reykjavik Keflavik Intl Airport?

    Departing from Washington, D.C. to Reykjavik Keflavik Intl Airport will take you 5h 55m. The distance between Washington, D.C. and Reykjavik Keflavik Intl Airport is about 2791 mi. This flight may include one or multiple stops.

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

    Icelandair, at $342, was found to be the cheapest airline from Washington, D.C. to Reykjavik Keflavik Intl Airport. An alternate airline flying to your destination would be United Airlines. You may be able to fly from Washington, D.C. to Reykjavik Keflavik Intl Airport for 23% less than the average price by searching for these airlines.

  • What are the most popular routes from Washington, D.C. to Reykjavik Keflavik Intl Airport?

    Most travelers choose Baltimore/Washington - Reykjavik Keflavik Intl, Washington, D.C. Dulles Intl - Reykjavik Keflavik Intl or Washington, D.C. Reagan-National - Reykjavik Keflavik Intl when deciding on the best route from Washington, D.C. to Reykjavik Keflavik Intl Airport.

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

    While on average a flight from Washington, D.C. to Reykjavik Keflavik Intl Airport is generally $1,143, our data shows the cheapest flight currently is $208. When looking at the most popular route, (Baltimore/Washington - Reykjavik Keflavik Intl), you can expect to pay $416 for that flight.

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

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

  • How can I find direct flights from Washington, D.C. 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, D.C. to Keflavik Intl.

  • Can I find deals for business class flights from Washington, D.C. to Keflavik Intl?

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

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Reykjavik Keflavik Intl Airport (average of $251). Flying from Washington, D.C. to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $388). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Keflavik Intl flights
Reagan-National to Keflavik Intl flights

Top 3 airlines flying from Washington, D.C. to Keflavik Intl

Discover the top 3 airlines that operate flights from Washington, D.C. 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 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$250Average$404FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$314Average$530FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$417Average$890FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights