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$243+ Cheap flights from Washington, D.C. (WAS) to Oslo

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Oslo are usually found in February or April, booked 67 days in advance, depart on a Thursday or Wednesday and return on a Friday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Oslo (OS1). 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 July 30, 2025.

Round-trip from

$396
(Ticket)

One-way from

$258
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$693
From Washington, D.C. (WAS) to Oslo
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One-way flight from Washington, D.C. (WAS) to Oslo
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Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Washington, D.C. to Oslo

Cheapest flights from Washington, D.C. to Oslo
Explore the most affordable flight options available from Washington, D.C. to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Ticket deal was found by Cheapflights users on 7/28. 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.
Wed 8/278:30 pmBWI - OSL
1 stop12h 55mIcelandair
Wed 9/34:30 pmOSL - BWI
1 stop32h 55mIcelandair
Deal found 7/28$396
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:15 pmIAD - OSL
1 stop31h 20mIcelandair
Mon 10/61:50 pmOSL - IAD
1 stop11h 30mIcelandair
Deal found 7/30$464
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:05 pmIAD - OSL
1 stop10h 05mScandinavian Airlines
Mon 10/61:35 pmOSL - IAD
1 stop12h 24mScandinavian Airlines
Deal found 7/29$466
This British Airways deal was found by Cheapflights users on 7/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:35 pmBWI - OSL
1 stop32h 20mBritish Airways
Wed 12/173:05 pmOSL - BWI
1 stop33h 40mBritish Airways
Deal found 7/30$476
This Iberia deal was found by Cheapflights users on 7/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 pmIAD - OSL
1 stop14h 20mIberia
Mon 12/153:00 pmOSL - IAD
1 stop31h 30mIberia
Deal found 7/30$486
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 11/55:29 pmIAD - OSL
2 stops14h 41mAmerican Airlines
Wed 11/1211:50 amOSL - IAD
2 stops17h 17mAmerican Airlines
Deal found 7/28$490
This Finnair deal was found by Cheapflights users on 7/28. 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.
Mon 12/16:20 pmIAD - OSL
2 stops31h 40mFinnair
Mon 12/812:25 pmOSL - IAD
2 stops33h 10mFinnair
Deal found 7/28$491
This Booking.com deal was found by Cheapflights users on 7/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:55 amIAD - OSL
2 stops20h 15mMultiple Airlines
Wed 12/39:35 amOSL - IAD
2 stops16h 54mMultiple Airlines
Deal found 7/28$492
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:20 pmIAD - OSL
1 stop13h 45mLufthansa
Mon 9/16:35 amOSL - IAD
1 stop12h 55mLufthansa
Deal found 7/28$507
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:10 pmIAD - OSL
1 stop12h 35mUnited Airlines
Mon 12/81:50 pmOSL - IAD
2 stops15h 31mUnited Airlines
Deal found 7/28$509
This Orbitz deal was found by Cheapflights users on 7/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:20 pmIAD - OSL
1 stop17h 10mBritish Airways
Fri 11/147:10 amOSL - IAD
2 stops21h 57mBritish Airways
Deal found 7/28$512
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:35 pmDCA - OSL
2 stops13h 05mBritish Airways
Wed 9/247:40 amOSL - DCA
2 stops16h 59mBritish Airways
Deal found 7/28$513

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Oslo 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 July 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Oslo that are best for you.

Fly from

Washington, D.C.

Fly to

Oslo

Route

Depart

Return

Price

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Wed 8/27

8:30 pm-3:25 pm

1 stop12h 55m

Oslo Gardermoen

Wed 9/3

4:30 pm-7:25 pm

1 stop32h 55m

$396

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Wed 10/1

11:15 pm-12:35 pm

1 stop31h 20m

Oslo Gardermoen

Mon 10/6

1:50 pm-7:20 pm

1 stop11h 30m

$464

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 9/28

10:05 pm-2:10 pm

1 stop10h 05m

Oslo Gardermoen

Mon 10/6

1:35 pm-7:59 pm

1 stop12h 24m

$466

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Tue 12/9

6:00 pm-2:20 pm

1 stop14h 20m

Oslo Gardermoen

Mon 12/15

3:00 pm-4:30 pm

1 stop31h 30m

$486

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Wed 11/5

5:29 pm-2:10 pm

2 stops14h 41m

Oslo Gardermoen

Wed 11/12

11:50 am-11:07 pm

2 stops17h 17m

$490

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 12/1

6:20 pm-8:00 am

2 stops31h 40m

Oslo Gardermoen

Mon 12/8

12:25 pm-3:35 pm

2 stops33h 10m

$491

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Thu 11/27

9:55 am-12:10 pm

2 stops20h 15m

Oslo Gardermoen

Wed 12/3

9:35 am-8:29 pm

2 stops16h 54m

$492

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 8/25

10:20 pm-6:05 pm

1 stop13h 45m

Oslo Gardermoen

Mon 9/1

6:35 am-1:30 pm

1 stop12h 55m

$507

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 12/1

11:10 pm-5:45 pm

1 stop12h 35m

Oslo Gardermoen

Mon 12/8

1:50 pm-11:21 pm

2 stops15h 31m

$509

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Fri 11/7

6:20 pm-5:30 pm

1 stop17h 10m

Oslo Gardermoen

Fri 11/14

7:10 am-11:07 pm

2 stops21h 57m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 57 results
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Best time to book a flight from Washington, D.C. to Oslo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Oslo. Price data was last updated on July 25, 2025.

The price you pay for your flight from Washington, D.C. to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 67 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 Washington, D.C. to Oslo?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $567). Flying from Washington, D.C. to Oslo in June is currently the most expensive (average of $1,010). 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 WAS to OSL?

Find hourly flight availability from Washington, D.C. to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

It’s typically best to fly out from Washington, D.C. to Oslo in the morning. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated July 30, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Oslo, such as Delta, Finnair, and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    Currently priced at $396, Icelandair will fly you from Washington, D.C. to Oslo and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and British Airways - these airlines can fly you to your destination from $466 and $476, respectively. Icelandair is currently priced 33% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $328. However, be on the lookout for offers from Icelandair and Iberia, as they are both options that can get you from Washington, D.C. to Oslo for a low price.

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

    The most popular flight routes from Washington, D.C. to Oslo are Washington, D.C. Dulles Intl - Oslo Gardermoen, Washington, D.C. Reagan-National - Oslo Gardermoen and Baltimore/Washington - Oslo Gardermoen.

  • Where are the most common layover locations when flying from Washington, D.C. to Oslo?

    Washington, D.C. to Oslo flights have a layover in Reykjavik most of the time.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Most Reykjavik visitors opt to spend their time experiencing Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool. Travelers on a layover in Reykjavik can visit Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool, by traveling 23.3 mi, 23.2 mi, and 24.6 mi, respectively after landing at Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $69 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Washington, D.C. to Oslo flights?

    Of the flights from Washington, D.C. to Oslo that have layovers, the fewest flights stop in Copenhagen.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Oslo.

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

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $567). Flying from Washington, D.C. to Oslo in June is currently the most expensive (average of $1,010). 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

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Top 8 airlines flying from Washington, D.C. to Oslo

Discover the top 8 airlines that operate flights from Washington, D.C. to Oslo. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$389Average$616FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$698FlexibilityNo cancel feeOn-time77%
DeltaCheapest$501Average$589FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$732FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$535Average$719FlexibilityNo cancel feeOn-time76%
KLMCheapest$548Average$784FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$563Average$751FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$566Average$616FlexibilityNo cancel feeOn-time77%

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