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Washington, D.C.

$296+ Cheap flights from Oslo Gardermoen (OSL) to Washington, D.C. (WAS)

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — WAS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Oslo Gardermoen to Washington, D.C.

Cheapest flights from Oslo Gardermoen to Washington, D.C.
Explore the most affordable flight options available from Oslo Gardermoen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:35 am
OSL
-
IAD
2 stops17h 45m
Multiple Airlines
Tue 5/265:40 pm
IAD
-
OSL
1 stop23h 40m
Multiple Airlines
Deal found 1/27$366
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:30 pm
OSL
-
BWI
2 stops29h 10m
Multiple Airlines
Tue 5/269:30 pm
BWI
-
OSL
1 stop19h 50m
Multiple Airlines
Deal found 1/27$366
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:35 am
OSL
-
IAD
2 stops17h 45m
Finnair
Tue 5/2610:25 pm
IAD
-
OSL
2 stops27h 25m
Finnair
Deal found 1/27$373
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:30 pm
OSL
-
IAD
2 stops25h 20m
Multiple Airlines
Tue 7/2810:25 pm
IAD
-
OSL
1 stop12h 00m
Multiple Airlines
Deal found 1/27$402
This Ticket deal was found by Cheapflights users on 1/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/89:30 pm
OSL
-
IAD
1 stop27h 00m
Icelandair
Sat 2/217:40 pm
IAD
-
OSL
1 stop18h 55m
Icelandair
Deal found 1/28$403
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:30 pm
OSL
-
IAD
2 stops25h 20m
Finnair
Wed 7/295:40 pm
IAD
-
OSL
2 stops32h 10m
Finnair
Deal found 1/27$415
This Ticket deal was found by Cheapflights users on 1/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/81:05 pm
OSL
-
BWI
1 stop11h 35m
Icelandair
Sat 2/217:40 pm
BWI
-
OSL
1 stop9h 55m
Icelandair
Deal found 1/28$433
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:20 pm
OSL
-
IAD
2 stops33h 00m
Multiple Airlines
Tue 7/2110:25 pm
IAD
-
OSL
1 stop18h 55m
Multiple Airlines
Deal found 1/27$443
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/211:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Wed 5/278:30 pm
IAD
-
OSL
1 stop12h 55m
Icelandair
Deal found 1/27$449
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:20 pm
OSL
-
IAD
2 stops33h 00m
Finnair
Tue 7/215:40 pm
IAD
-
OSL
2 stops36h 25m
Finnair
Deal found 1/27$456
This Icelandair deal was found by Cheapflights users on 1/26. 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 4/221:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Sun 4/268:30 pm
IAD
-
OSL
1 stop10h 05m
Icelandair
Deal found 1/26$457
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Fri 5/2911:20 pm
IAD
-
OSL
1 stop10h 05m
Icelandair
Deal found 1/27$467

Find flight deals from Oslo Gardermoen to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Washington, D.C. (WAS). 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$366
(Finnair)

One-way from

$296
(Travelis)

Popular in

July

Cheapest in

November

Average price

$573
Provider with most accurate pricing for Oslo Gardermoen-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oslo Gardermoen-Washington, D.C. (WAS) flights.
Search Deals
From Oslo Gardermoen to Washington, D.C. (WAS)
Search Deals
One-way flight from Oslo Gardermoen to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen to Washington, D.C. 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 January 29, 2026.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Washington, D.C. that are best for you.

Fly from

Oslo Gardermoen

Fly to

Washington, D.C.

Route

Depart

Return

Price

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

Thu 5/21

8:30 pm-7:40 pm

2 stops29h 10m

Baltimore/Washington

Tue 5/26

9:30 pm-11:20 pm

1 stop19h 50m

$366

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 2/8

9:30 pm-6:30 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

Sat 2/21

7:40 pm-8:35 pm

1 stop18h 55m

$403

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Mon 7/6

8:30 pm-3:50 pm

2 stops25h 20m

Washington, D.C. Dulles Intl

Wed 7/29

5:40 pm-11:25 pm

1 stop23h 45m

$403

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 6/30

5:20 pm-8:20 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Mon 8/3

5:40 pm-7:50 am

2 stops32h 10m

$415

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Mon 7/6

8:30 pm-3:50 pm

2 stops25h 20m

Washington, D.C. Dulles Intl

Wed 7/29

5:40 pm-7:50 am

2 stops32h 10m

$415

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 6/30

5:20 pm-8:20 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Tue 7/21

10:25 pm-11:20 pm

1 stop18h 55m

$443

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Mon 6/29

5:20 pm-8:20 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Tue 7/21

5:40 pm-12:05 pm

2 stops36h 25m

$456

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 6/30

5:20 pm-8:20 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Tue 7/21

10:25 pm-12:05 pm

2 stops31h 40m

$456

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 4/22

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 4/26

8:30 pm-12:35 pm

1 stop10h 05m

$457

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 5/19

4:30 pm-7:20 pm

1 stop32h 50m

Washington, D.C. Dulles Intl

Wed 5/27

8:30 pm-3:25 pm

1 stop12h 55m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 52 results
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Compare providers for flights from Oslo Gardermoen to Washington, D.C.

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 Oslo Gardermoen to Washington, D.C. in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 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 Oslo Gardermoen Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oslo Gardermoen Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oslo Gardermoen Airport-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oslo Gardermoen Airport-Washington, D.C. 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 Oslo Gardermoen Airport-Washington, D.C. 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 Oslo Gardermoen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Oslo Gardermoen 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 Oslo Gardermoen Airport to Washington, D.C.

How far ahead should I book a flight from Oslo Gardermoen Airport to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Oslo Gardermoen to Washington, D.C.. Price data was last updated on January 23, 2026.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Oslo Gardermoen Airport to Washington, D.C.?

Currently, October is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $322). Flying from Oslo Gardermoen Airport to Washington, D.C. in December is currently the most expensive (average of $466). 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.

How much does it cost to fly round-trip from Oslo Gardermoen Airport to Washington, D.C.?

What’s the top layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

Share of 1-stop round-trip flights from Oslo Gardermoen Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Frankfurt am Main (FRA) – chosen by Cheapflights users on 31% of 1-stop itineraries from Oslo Gardermoen Airport to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

Average round-trip fare for 1-stop flights from Oslo Gardermoen Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

London (LHR) is the most affordable 1-stop option, with an average round-trip price of $506.

What’s the fastest layover option from Oslo Gardermoen Airport to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Oslo Gardermoen Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 12h 00m.

Which airport typically offers the quickest layover for flights from Oslo Gardermoen Airport to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Oslo Gardermoen Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 31m.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Oslo Gardermoen Airport to Washington, D.C., such as KLM, Scandinavian Airlines, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Scandinavian Airlines
7.3
Good
1,674 reviews
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
606 reviews
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,756 reviews
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,705 reviews
KLM
7.7
Good
1,443 reviews

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen to Washington, D.C.. 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 Oslo Gardermoen Airport to Washington, D.C.?

    Airlines like Icelandair, Finnair, and British Airways fly from Oslo Gardermoen Airport to Washington, D.C. in about 19h 58m. The time it takes to get you to your destination can typically vary by up to 13h 02m. There are 3848 mi between Oslo Gardermoen Airport and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Oslo Gardermoen Airport to Washington, D.C. round-trip?

    Our cheapest airline available from Oslo Gardermoen Airport to Washington, D.C. is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $438 on this airline. Additional options worth looking into are Lufthansa and United Airlines, starting at $448 and $459 round-trip. Users have found that Scandinavian Airlines is 20% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Oslo Gardermoen Airport to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $283. Icelandair flights start at $439 while deals on Scandinavian Airlines start at $485 one-way.

  • What are the most popular routes from Oslo Gardermoen Airport to Washington, D.C.?

    While some choose either Oslo Gardermoen - Baltimore/Washington or Oslo Gardermoen - Washington, D.C. Reagan-National, Oslo Gardermoen - Washington, D.C. Dulles Intl is the most popular route from Oslo Gardermoen Airport to Washington, D.C..

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

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

  • How can I find direct flights from Oslo Gardermoen to Washington, D.C.?

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

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

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Washington, D.C. 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 Oslo Gardermoen Airport to Washington, D.C.?

    Currently, October is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $322). Flying from Oslo Gardermoen Airport to Washington, D.C. in December is currently the most expensive (average of $466). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Oslo Gardermoen to Washington, D.C.

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

Top 3 airlines flying from Oslo Gardermoen to Washington, D.C.

Discover the top 3 airlines that operate flights from Oslo Gardermoen to Washington, D.C.. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$438Average$676FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$448Average$494FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$459Average$514FlexibilityNo cancel feeOn-time69%

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