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Washington, D.C.

$296+ 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 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 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 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 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 January 29, 2026.

Round-trip from

$366
(Finnair)

One-way from

$296
(Travelis)

Popular in

July

Cheapest in

November

Average price

$573
From Oslo to Washington, D.C. (WAS)
Search Deals
One-way flight from Oslo 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
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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 January 29, 2026.
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

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 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 January 23, 2026.

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 $322). Flying from Oslo 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 to Washington, D.C.?

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 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
1,443 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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
7,753 reviews
KLM
7.7
Good
1,443 reviews

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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

Overall

7.7

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

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 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, Finnair, and British Airways fly from Oslo 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. Oslo and Washington, D.C. are separated by a distance of 3848 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?

    Scandinavian Airlines, at $438, was found to be the cheapest airline from Oslo to Washington, D.C..Alternate airlines to your destination round-trip include Lufthansa and United Airlines. These flights start at 20% 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 $322). Flying from Oslo 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

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

Discover the top 3 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 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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