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Washington, D.C.

$313+ Cheap flights from Oslo 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Washington, D.C. are usually found in February or November, booked 79 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Oslo to Washington, D.C.

Cheapest flights from Oslo to Washington, D.C.
Explore the most affordable flight options available from Oslo to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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.
Wed 12/241:10 pmOSL - IAD
1 stop11h 20mIcelandair
Fri 1/27:40 pmIAD - OSL
1 stop9h 55mIcelandair
Deal found 12/16$926
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:45 amOSL - IAD
2 stops31h 25mUnited Airlines
Fri 1/210:33 pmIAD - OSL
2 stops36h 37mUnited Airlines
Deal found 12/16$964
This British Airways deal was found by Cheapflights users on 12/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:55 amOSL - DCA
2 stops16h 39mBritish Airways
Fri 1/22:07 pmDCA - OSL
2 stops14h 23mBritish Airways
Deal found 12/16$2,152
This Ethiopian Air deal was found by Cheapflights users on 12/16. 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 Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 pmOSL - IAD
3 stops30h 20mEthiopian Air
Fri 1/21:00 pmIAD - OSL
3 stops60h 45mEthiopian Air
Deal found 12/16$2,502
This British Airways deal was found by Cheapflights users on 12/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:50 amOSL - BWI
1 stop12h 55mBritish Airways
Fri 1/28:15 pmBWI - OSL
2 stops15h 15mBritish Airways
Deal found 12/16$2,669

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

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) 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 December 18, 2025.

Round-trip from

$402
(Ticket)

One-way from

$313
(Finnair)

Popular in

July

Cheapest in

February

Average price

$630
From Oslo to Washington, D.C. (WAS)
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One-way flight from Oslo to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 5% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo 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 December 18, 2025.
Use the filters below to find and compare flights from Oslo to Washington, D.C. that are best for you.

Fly from

Oslo

Fly to

Washington, D.C.

Route

Depart

Return

Price

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 1/25

9:30 pm-6:30 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

Sat 2/7

7:40 pm-8:35 pm

1 stop18h 55m

$402

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 1/15

1:10 pm-6:30 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Thu 1/22

7:40 pm-11:35 am

1 stop9h 55m

$440

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sat 1/17

1:10 pm-6:30 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Sat 1/24

7:40 pm-11:35 am

1 stop9h 55m

$445

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 1/15

6:55 pm-9:00 pm

1 stop32h 05m

Washington, D.C. Dulles Intl

Thu 1/22

5:30 pm-12:10 pm

1 stop12h 40m

$446

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 1/30

1:00 pm-3:15 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

Fri 2/6

10:30 pm-12:10 pm

1 stop31h 40m

$458

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 2/5

1:10 pm-6:30 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 2/9

7:40 pm-11:35 am

1 stop9h 55m

$467

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 1/29

1:10 pm-6:30 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 2/2

7:40 pm-11:35 am

1 stop9h 55m

$468

OsloBaltimore

OSL - BWI

OSLBWI

Oslo Gardermoen

Sun 1/25

9:30 pm-6:40 pm

1 stop27h 10m

Baltimore/Washington

Sat 2/7

7:40 pm-11:35 am

1 stop9h 55m

$468

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 2/17

6:45 pm-9:00 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

Tue 3/3

5:30 pm-12:10 pm

1 stop12h 40m

$471

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sat 1/24

9:25 am-4:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Sat 1/31

6:50 pm-4:20 pm

1 stop15h 30m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Oslo to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oslo to Washington, D.C.. Price data was last updated on December 12, 2025.

The price you pay for your flight from Oslo to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Oslo to Washington, D.C. (average of $320). Flying from Oslo to Washington, D.C. in December is currently the most expensive (average of $475). 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 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 December 18, 2025.

It’s optimal to fly from Oslo 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.

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 December 18, 2025.
Read reviews from past customers who have flown KLM, Scandinavian Airlines, and Icelandair from Oslo to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,428 reviews
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Scandinavian Airlines
7.4
Good
1,608 reviews
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Icelandair
7.0
Good
591 reviews
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,637 reviews
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,586 reviews
KLM
7.7
Good
1,428 reviews

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

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

    Airlines like Icelandair, Delta, and Scandinavian Airlines fly from Oslo to Washington, D.C. in about 19h 32m. The time it takes to get you to your destination can typically vary by up to 11h 13m. Oslo and Washington, D.C. are separated by a distance of 3877 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    British Airways, at $438, was found to be the cheapest airline from Oslo to Washington, D.C..Alternate airlines to your destination round-trip include Scandinavian Airlines and Lufthansa. These flights start at 19% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $283 on British Airways. Other airlines that offer cheap prices include Icelandair from $439 and Scandinavian Airlines from $485 one-way.

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Oslo to Washington, D.C. (average of $320). Flying from Oslo to Washington, D.C. in December is currently the most expensive (average of $475). 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
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oslo 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
Bergen to Dulles Intl flights
Stavanger to Reagan-National flights

Top 5 airlines flying from Oslo to Washington, D.C.

Discover the top 5 airlines that operate flights from Oslo 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$438Average$586FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$438Average$664FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$448Average$494FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$459Average$514FlexibilityNo cancel feeOn-time69%
KLMCheapest$479Average$836FlexibilityNo cancel feeOn-time75%

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