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$154+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Oslo are usually found in February or September, booked 67 days in advance, depart on a Thursday or Wednesday and return on a Friday

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 October 30, 2025.

This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:40 pmIAD - OSL
1 stop9h 55mIcelandair
Thu 12/41:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/29$382
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:40 pmIAD - OSL
1 stop9h 55mIcelandair
Thu 12/41:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/28$385
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:40 pmIAD - OSL
1 stop9h 55mIcelandair
Tue 12/91:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/30$389
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:40 pmBWI - OSL
1 stop18h 55mIcelandair
Thu 12/111:10 pmOSL - BWI
1 stop11h 30mIcelandair
Deal found 10/29$392
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:40 pmIAD - OSL
1 stop9h 55mIcelandair
Sat 12/61:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/28$392
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmBWI - OSL
1 stop9h 55mIcelandair
Sun 12/79:30 pmOSL - BWI
1 stop27h 10mIcelandair
Deal found 10/29$394
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmIAD - OSL
1 stop9h 55mIcelandair
Sun 12/71:05 pmOSL - IAD
1 stop11h 25mIcelandair
Deal found 10/29$403
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:40 pmBWI - OSL
1 stop9h 55mIcelandair
Thu 12/41:10 pmOSL - BWI
1 stop11h 30mIcelandair
Deal found 10/28$415
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:40 pmIAD - OSL
1 stop9h 55mIcelandair
Mon 12/151:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/29$415
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:30 pmIAD - OSL
1 stop18h 25mTAP AIR PORTUGAL
Sun 12/71:00 pmOSL - IAD
1 stop32h 15mTAP AIR PORTUGAL
Deal found 10/29$427
This Icelandair deal was found by Cheapflights users on 10/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:40 pmIAD - OSL
1 stop9h 55mIcelandair
Mon 12/81:10 pmOSL - IAD
1 stop11h 20mIcelandair
Deal found 10/27$442
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:30 pmIAD - OSL
1 stop12h 40mTAP AIR PORTUGAL
Tue 12/166:45 pmOSL - IAD
1 stop32h 15mTAP AIR PORTUGAL
Deal found 10/28$448

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 October 30, 2025.

Round-trip from

$382
(Scandinavian Airlines)

One-way from

$154
(Ticket)

Popular in

June

Cheapest in

February

Average price

$556
From Washington, D.C. (WAS) to Oslo
Search Deals
One-way flight from Washington, D.C. (WAS) to Oslo
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 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

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sat 11/29

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Thu 12/4

1:10 pm-6:30 pm

1 stop11h 20m

$382

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Wed 3/25

8:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Sun 3/29

4:30 pm-7:25 pm

1 stop32h 55m

$394

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Sun 3/29

8:30 pm-12:35 pm

1 stop10h 05m

Oslo Gardermoen

Thu 4/2

4:30 pm-10:30 pm

1 stop12h 00m

$420

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Sun 1/11

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Thu 1/15

1:10 pm-6:40 pm

1 stop11h 30m

$420

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Thu 12/4

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Mon 12/8

1:10 pm-6:30 pm

1 stop11h 20m

$442

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 1/5

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Sat 3/28

1:10 pm-7:30 pm

1 stop11h 20m

$488

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 12/8

12:15 pm-9:20 am

2 stops15h 05m

Oslo Gardermoen

Mon 12/15

10:00 am-10:57 pm

2 stops18h 57m

$500

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 12/8

12:19 pm-9:50 am

2 stops15h 31m

Oslo Gardermoen

Mon 12/15

8:00 am-7:19 pm

2 stops17h 19m

$500

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 12/1

10:55 pm-5:40 pm

1 stop12h 45m

Oslo Gardermoen

Mon 12/8

6:15 am-8:59 pm

2 stops20h 44m

$507

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Thu 11/6

5:40 pm-11:00 am

1 stop11h 20m

Oslo Gardermoen

Mon 11/10

6:15 am-8:54 pm

2 stops20h 39m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 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 October 24, 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $378). Flying from Washington, D.C. to Oslo in July is currently the most expensive (average of $503). 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 October 30, 2025.

It’s typically best to fly out from Washington, D.C. to Oslo in the evening. Doing so could potentially save you 44% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. to Oslo?

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 October 30, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Oslo, such as Delta, Scandinavian Airlines, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Scandinavian Airlines
7.4
Good
1,545 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Icelandair
7.1
Good
562 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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.

  • How long is the flight from Washington, D.C. to Oslo?

    Departing from Washington, D.C. to Oslo will take you 9h 55m. There are 3885 mi between Washington, D.C. and Oslo. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $392, 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 $400 and $517, 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 $154. However, be on the lookout for offers from Icelandair and KLM, 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, Baltimore/Washington - Oslo Gardermoen and Washington, D.C. Reagan-National - 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 $48 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $378). Flying from Washington, D.C. to Oslo in July is currently the most expensive (average of $503). 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

Browse thousands of different options on Cheapflights for your next trip

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$392Average$564FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$695FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$517Average$751FlexibilityNo cancel feeOn-time70%
DeltaCheapest$532Average$575FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$542Average$720FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$543Average$574FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$545Average$748FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$549Average$728FlexibilityNo cancel feeOn-time76%

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