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$281+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — WAS
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo Gardermoen to Washington, D.C. are usually found in February or November, booked 42 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$422
(Ticket)

One-way from

$281
(Finnair)

Popular in

July

Cheapest in

February

Average price

$493
Provider with most accurate pricing for Oslo Gardermoen-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Oslo Gardermoen-Washington, D.C. (WAS) flights.
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From Oslo Gardermoen to Washington, D.C. (WAS)
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One-way flight from Oslo Gardermoen to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 7% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 octubre 28, 2025.

This Ticket deal was found by Cheapflights users on 10/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/241:10 pmOSL - IAD
1 stop11h 20mIcelandair
dom. 12/77:40 pmIAD - OSL
1 stop9h 55mIcelandair
Deal found 10/27$422
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/51:00 pmOSL - IAD
1 stop32h 15mTAP AIR PORTUGAL
jue. 1/85:30 pmIAD - OSL
1 stop12h 40mTAP AIR PORTUGAL
Deal found 10/28$439
This Ticket deal was found by Cheapflights users on 10/26. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/27:00 pmOSL - IAD
1 stop27h 05mKLM
lun. 11/176:05 pmIAD - OSL
1 stop22h 25mKLM
Deal found 10/26$441
This Ticket deal was found by Cheapflights users on 10/28. 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.
jue. 11/135:00 pmOSL - IAD
1 stop29h 05mKLM
vie. 11/286:05 pmIAD - OSL
1 stop16h 10mKLM
Deal found 10/28$449
This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/251:10 pmOSL - IAD
1 stop11h 20mIcelandair
mar. 12/27:40 pmIAD - OSL
1 stop9h 55mIcelandair
Deal found 10/26$456
This FlightHub deal was found by Cheapflights users on 10/27. 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.
dom. 11/239:30 pmOSL - IAD
1 stop27h 00mIcelandair
sáb. 11/297:40 pmIAD - OSL
1 stop18h 55mIcelandair
Deal found 10/27$458
This Travelis deal was found by Cheapflights users on 10/26. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/25:00 pmOSL - IAD
1 stop29h 05mMultiple Airlines
lun. 11/176:50 pmIAD - OSL
1 stop15h 30mMultiple Airlines
Deal found 10/26$464
This FlightHub deal was found by Cheapflights users on 10/27. 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.
mar. 11/256:45 pmOSL - IAD
1 stop32h 15mTAP AIR PORTUGAL
mar. 12/25:30 pmIAD - OSL
1 stop12h 40mTAP AIR PORTUGAL
Deal found 10/27$468
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:30 amOSL - IAD
1 stop15h 35mDelta
vie. 11/2812:11 pmIAD - OSL
2 stops19h 39mDelta
Deal found 10/28$471
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/39:25 amOSL - IAD
1 stop12h 40mDelta
lun. 11/176:50 pmIAD - OSL
1 stop15h 30mDelta
Deal found 10/27$474
This Iberia deal was found by Cheapflights users on 10/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/67:10 amOSL - IAD
1 stop14h 25mMultiple Airlines
mar. 1/66:20 pmIAD - OSL
1 stop13h 50mMultiple Airlines
Deal found 10/28$475
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:30 amOSL - BWI
2 stops17h 52mDelta
vie. 11/289:05 amBWI - OSL
2 stops22h 45mDelta
Deal found 10/28$476

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 octubre 28, 2025.
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

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

vie. 12/5

1:00 pm-3:15 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

jue. 1/8

5:30 pm-12:10 pm

1 stop12h 40m

$439

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

dom. 12/7

1:00 pm-3:15 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

jue. 1/8

5:30 pm-12:10 pm

1 stop12h 40m

$439

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

jue. 11/13

5:00 pm-4:05 pm

1 stop29h 05m

Washington, D.C. Dulles Intl

vie. 11/28

6:05 pm-4:15 pm

1 stop16h 10m

$449

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

dom. 11/23

9:30 pm-6:30 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

sáb. 11/29

7:40 pm-8:35 pm

1 stop18h 55m

$458

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

jue. 11/13

6:30 am-4:05 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

vie. 11/28

12:11 pm-1:50 pm

2 stops19h 39m

$471

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

mar. 11/25

9:25 am-4:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

mar. 12/2

5:03 pm-4:20 pm

2 stops17h 17m

$474

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

lun. 11/24

9:25 am-4:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

dom. 12/7

7:59 pm-4:20 pm

2 stops14h 21m

$476

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

jue. 11/13

6:30 am-6:22 pm

2 stops17h 52m

Baltimore/Washington

vie. 11/28

9:05 am-1:50 pm

2 stops22h 45m

$476

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

sáb. 11/22

7:10 am-10:15 pm

2 stops21h 05m

Washington, D.C. Reagan-National

lun. 12/8

1:41 pm-10:55 am

2 stops15h 14m

$478

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

sáb. 11/22

6:30 am-4:05 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

sáb. 11/29

6:05 pm-11:50 am

1 stop11h 45m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 60 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 October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Oslo Gardermoen Airport-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 2025.

Booking 42 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, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $299). Flying from Oslo Gardermoen Airport to Washington, D.C. in August is currently the most expensive (average of $438). 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 OSL to WAS?

Find hourly flight availability from Oslo Gardermoen to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 28, 2025.

It’s optimal to fly from Oslo Gardermoen Airport to Washington, D.C. in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight at noon.

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 36% 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 octubre 28, 2025.
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
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Scandinavian Airlines
7.4
Good
1,543 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
562 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,535 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,483 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 TAP AIR PORTUGAL, KLM, and Icelandair fly from Oslo Gardermoen Airport to Washington, D.C. in about 27h. The time it takes to get you to your destination can typically vary by up to 5h 15m. There are 3885 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 Icelandair. Our recent data shows that you can find tickets from as low as $319 on this airline. Additional options worth looking into are British Airways and Scandinavian Airlines, starting at $406 and $438 round-trip. Users have found that Icelandair is 39% cheaper than the other options available to this destination.

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

    While some choose either Oslo Gardermoen - Washington, D.C. Reagan-National or Oslo Gardermoen - Baltimore/Washington, 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, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $299). Flying from Oslo Gardermoen Airport to Washington, D.C. in August is currently the most expensive (average of $438). 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
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Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
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Waldorf
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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 5 airlines flying from Oslo Gardermoen to Washington, D.C.

Discover the top 5 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$319Average$630FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$406Average$525FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$438Average$664FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$448Average$494FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$483Average$514FlexibilityNo cancel feeOn-time69%

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