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Washington, D.C.

$281+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — WAS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 42 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap 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 October 30, 2025.

Round-trip from

$439
(Flightnetwork)

One-way from

$281
(Finnair)

Popular in

July

Cheapest in

February

Average price

$493
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. 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 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 October 30, 2025.

This Flightnetwork deal was found by Cheapflights users on 10/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:00 pmOSL - IAD
1 stop32h 15mTAP AIR PORTUGAL
Sun 12/710:30 pmIAD - OSL
1 stop13h 25mTAP AIR PORTUGAL
Deal found 10/29$439
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.
Thu 11/135:00 pmOSL - IAD
1 stop29h 05mKLM
Fri 11/286:05 pmIAD - OSL
1 stop16h 10mKLM
Deal found 10/28$449
This Ticket deal was found by Cheapflights users on 10/29. 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.
Mon 11/249:25 amOSL - IAD
1 stop12h 40mKLM
Sun 12/76:05 pmIAD - OSL
1 stop18h 10mKLM
Deal found 10/29$450
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.
Thu 11/136:30 amOSL - IAD
1 stop15h 35mDelta
Fri 11/2812:11 pmIAD - OSL
2 stops19h 39mDelta
Deal found 10/28$471
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.
Sat 12/67:10 amOSL - IAD
1 stop14h 25mMultiple Airlines
Tue 1/66:20 pmIAD - OSL
1 stop13h 50mMultiple Airlines
Deal found 10/28$475
This Delta deal was found by Cheapflights users on 10/29. 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.
Tue 11/256:30 amOSL - IAD
1 stop15h 35mDelta
Tue 12/25:03 pmIAD - OSL
2 stops17h 17mDelta
Deal found 10/29$476
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.
Thu 11/136:30 amOSL - BWI
2 stops17h 52mDelta
Fri 11/289:05 amBWI - OSL
2 stops22h 45mDelta
Deal found 10/28$476
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/249:25 amOSL - IAD
2 stops18h 07mDelta
Sun 12/77:59 pmIAD - OSL
2 stops14h 21mDelta
Deal found 10/29$482
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:10 amOSL - IAD
2 stops18h 21mAmerican Airlines
Tue 1/66:20 pmIAD - OSL
1 stop13h 50mAmerican Airlines
Deal found 10/28$483
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 11/269:25 amOSL - IAD
2 stops18h 07mDelta
Sun 11/306:05 pmIAD - OSL
1 stop18h 10mDelta
Deal found 10/30$487
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/246:30 amOSL - BWI
2 stops17h 52mDelta
Sun 12/710:28 amBWI - OSL
2 stops16h 12mDelta
Deal found 10/29$488
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/246:30 amOSL - DCA
2 stops18h 04mDelta
Sun 12/711:13 amDCA - OSL
2 stops15h 27mDelta
Deal found 10/29$488

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 October 30, 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

Fri 12/5

1:00 pm-3:15 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

Thu 1/8

5:30 pm-12:10 pm

1 stop12h 40m

$439

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 12/7

1:00 pm-3:15 pm

1 stop32h 15m

Washington, D.C. Dulles Intl

Thu 1/8

5:30 pm-12:10 pm

1 stop12h 40m

$439

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 11/26

7:00 pm-4:05 pm

1 stop27h 05m

Washington, D.C. Dulles Intl

Sun 11/30

6:05 pm-6:15 pm

1 stop18h 10m

$449

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 11/13

5:00 pm-4:05 pm

1 stop29h 05m

Washington, D.C. Dulles Intl

Fri 11/28

6:05 pm-4:15 pm

1 stop16h 10m

$449

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Mon 11/24

9:25 am-4:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Sun 12/7

6:05 pm-6:15 pm

1 stop18h 10m

$450

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 11/13

6:30 am-4:05 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Fri 11/28

12:11 pm-1:50 pm

2 stops19h 39m

$471

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sat 12/6

7:10 am-3:35 pm

1 stop14h 25m

Washington, D.C. Dulles Intl

Tue 1/6

6:20 pm-2:10 pm

1 stop13h 50m

$475

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 12/5

9:25 am-4:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Sun 12/7

7:59 pm-4:20 pm

2 stops14h 21m

$476

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 11/25

5:00 pm-4:05 pm

1 stop29h 05m

Washington, D.C. Dulles Intl

Tue 12/2

6:50 pm-4:20 pm

1 stop15h 30m

$476

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 11/25

6:30 am-4:05 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Tue 12/2

5:03 pm-4:20 pm

2 stops17h 17m

$476

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 October 24, 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 42 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, January is the cheapest month in which you can book a flight from Oslo to Washington, D.C. (average of $299). Flying from Oslo 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 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 October 30, 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.

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 October 30, 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
1,406 reviews

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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
1,548 reviews
KLM
7.7
Good
1,406 reviews

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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
7,541 reviews
KLM
7.7
Good
1,406 reviews

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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
7,487 reviews
KLM
7.7
Good
1,406 reviews

Food

7.3

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

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 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 TAP AIR PORTUGAL, KLM, and Delta fly from Oslo to Washington, D.C. in about 17h 52m. The time it takes to get you to your destination can typically vary by up to 14h 23m. 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?

    Icelandair, at $319, was found to be the cheapest airline from Oslo to Washington, D.C..Alternate airlines to your destination round-trip include British Airways and Scandinavian Airlines. These flights start at 39% lower than the current average price 3 months from now.

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

    Most travelers choose Oslo Gardermoen - Washington, D.C. Dulles Intl, Oslo Gardermoen - Washington, D.C. Reagan-National or Oslo Gardermoen - Baltimore/Washington 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, January is the cheapest month in which you can book a flight from Oslo to Washington, D.C. (average of $299). Flying from Oslo 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
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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 October 30, 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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