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$273+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — WAS
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo Gardermoen to Washington, D.C. are usually found in September or February, 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$403
(Ticket)

One-way from

$273
(oojo)

Popular in

July

Cheapest in

September

Average price

$555
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. 11% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Ticket deal was found by Cheapflights users on 4/28. 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.
Fri 5/94:20 pmOSL - BWI
1 stop33h 05mIcelandair
Sun 5/258:30 pmBWI - OSL
1 stop10h 05mIcelandair
Deal found 4/28$403
This Ticket deal was found by Cheapflights users on 4/28. 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 5/117:45 amOSL - BWI
1 stop17h 50mMultiple Airlines
Tue 5/279:20 pmBWI - OSL
1 stop20h 05mMultiple Airlines
Deal found 4/28$419
This Ticket deal was found by Cheapflights users on 4/29. 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 5/117:45 amOSL - BWI
1 stop17h 50mBritish Airways
Tue 5/279:20 pmBWI - OSL
1 stop20h 05mBritish Airways
Deal found 4/29$436
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Fri 5/234:30 pmOSL - IAD
1 stop11h 40mIcelandair
Mon 5/268:30 pmIAD - OSL
1 stop10h 05mIcelandair
Deal found 4/29$440
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/117:45 amOSL - DCA
2 stops20h 51mAmerican Airlines
Tue 5/273:54 pmDCA - OSL
2 stops25h 31mAmerican Airlines
Deal found 4/28$441
This Finnair deal was found by Cheapflights users on 4/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/117:45 amOSL - IAD
1 stop18h 25mFinnair
Tue 5/2710:40 pmIAD - OSL
1 stop18h 45mFinnair
Deal found 4/28$451
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/117:45 amOSL - IAD
1 stop18h 25mAmerican Airlines
Tue 5/2710:40 pmIAD - OSL
1 stop18h 45mAmerican Airlines
Deal found 4/29$453
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/236:30 amOSL - IAD
2 stops19h 12mDelta
Mon 5/269:20 pmIAD - OSL
1 stop13h 20mDelta
Deal found 4/29$459
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:40 amOSL - IAD
2 stops17h 52mBritish Airways
Sun 5/1810:40 pmIAD - OSL
1 stop19h 00mBritish Airways
Deal found 4/28$460
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/911:50 amOSL - DCA
2 stops17h 54mDelta
Sun 5/2512:45 pmDCA - OSL
2 stops16h 20mDelta
Deal found 4/28$463
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 8/226:30 amOSL - BWI
2 stops15h 22mDelta
Fri 9/51:00 pmBWI - OSL
2 stops16h 05mDelta
Deal found 4/29$464
This Travelis deal was found by Cheapflights users on 4/29. 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.
Wed 6/47:15 amOSL - IAD
1 stop14h 05mLufthansa
Thu 6/126:10 pmIAD - OSL
1 stop17h 50mLufthansa
Deal found 4/29$466

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 April 30, 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

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

Fri 5/9

4:20 pm-7:25 pm

1 stop33h 05m

Baltimore/Washington

Sun 5/25

8:30 pm-12:35 pm

1 stop10h 05m

$403

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

Sun 5/11

7:45 am-7:35 pm

1 stop17h 50m

Baltimore/Washington

Tue 5/27

9:20 pm-11:25 pm

1 stop20h 05m

$419

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

Sun 5/11

7:45 am-7:35 pm

1 stop17h 50m

Baltimore/Washington

Tue 5/27

9:20 pm-11:25 pm

1 stop20h 05m

$436

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 5/23

4:30 pm-10:10 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Mon 5/26

8:30 pm-12:35 pm

1 stop10h 05m

$440

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Sun 5/11

7:45 am-10:36 pm

2 stops20h 51m

Washington, D.C. Reagan-National

Tue 5/27

3:54 pm-11:25 pm

2 stops25h 31m

$441

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 5/11

7:45 am-8:10 pm

1 stop18h 25m

Washington, D.C. Dulles Intl

Tue 5/27

10:40 pm-11:25 pm

1 stop18h 45m

$451

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 5/11

7:45 am-8:10 pm

1 stop18h 25m

Washington, D.C. Dulles Intl

Tue 5/27

10:40 pm-11:25 pm

1 stop18h 45m

$453

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 5/23

6:30 am-7:42 pm

2 stops19h 12m

Washington, D.C. Dulles Intl

Mon 5/26

9:20 pm-4:40 pm

1 stop13h 20m

$459

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 5/14

7:40 am-7:32 pm

2 stops17h 52m

Washington, D.C. Dulles Intl

Sun 5/18

10:40 pm-11:40 pm

1 stop19h 00m

$460

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Fri 5/9

11:50 am-11:44 pm

2 stops17h 54m

Washington, D.C. Reagan-National

Sun 5/25

12:45 pm-11:05 am

2 stops16h 20m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 58 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 April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 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 Oslo Gardermoen Airport-Washington, D.C. flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Oslo Gardermoen Airport-Washington, D.C. flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 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, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $309). Flying from Oslo Gardermoen Airport to Washington, D.C. in June is currently the most expensive (average of $373). 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 April 30, 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 28% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 30, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Oslo to Washington, D.C.. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,069 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $403 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at $436 and $441 round-trip. Users have found that Icelandair is 22% 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $273. Scandinavian Airlines flights start at $414 while deals on British Airways start at $455 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, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $309). Flying from Oslo Gardermoen Airport to Washington, D.C. in June is currently the most expensive (average of $373). 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 Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$319Average$535FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$354Average$578FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$407Average$587FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$448Average$535FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$459Average$651FlexibilityNo cancel feeOn-time69%

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