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$159+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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

Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/181:00 pmIAD - OSL
2 stops18h 00mUnited Airlines
Wed 12/246:05 amOSL - IAD
1 stop15h 45mUnited Airlines
Deal found 12/17$559
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/183:30 pmDCA - OSL
2 stops18h 10mUnited Airlines
Wed 12/241:50 pmOSL - DCA
2 stops30h 27mUnited Airlines
Deal found 12/17$569
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/1810:44 amBWI - OSL
2 stops22h 56mUnited Airlines
Wed 12/241:50 pmOSL - BWI
2 stops33h 08mUnited Airlines
Deal found 12/17$588
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 12/176:20 pmIAD - OSL
2 stops17h 20mLufthansa
Wed 12/246:05 amOSL - IAD
1 stop15h 45mLufthansa
Deal found 12/16$742
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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.
Sun 12/2110:25 pmIAD - OSL
2 stops19h 05mLufthansa
Tue 12/236:25 pmOSL - IAD
2 stops26h 55mLufthansa
Deal found 12/17$917
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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.
Mon 12/226:10 pmIAD - OSL
2 stops17h 20mLufthansa
Thu 1/81:45 pmOSL - IAD
2 stops30h 15mLufthansa
Deal found 12/17$925
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:20 pmIAD - OSL
2 stops36h 50mMultiple Airlines
Wed 12/316:05 amOSL - IAD
1 stop15h 45mMultiple Airlines
Deal found 12/16$934
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.
Tue 12/166:30 pmIAD - OSL
2 stops23h 10mUnited Airlines
Wed 12/316:05 amOSL - IAD
2 stops35h 11mUnited Airlines
Deal found 12/16$959
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:20 pmIAD - OSL
2 stops35h 50mSWISS
Sun 12/211:00 pmOSL - IAD
1 stop34h 05mSWISS
Deal found 12/16$967
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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.
Fri 12/1910:25 pmIAD - OSL
2 stops18h 55mLufthansa
Sun 12/211:50 pmOSL - IAD
2 stops30h 10mLufthansa
Deal found 12/15$983
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 12/176:20 pmIAD - OSL
2 stops23h 25mUnited Airlines
Sun 12/211:50 pmOSL - IAD
2 stops30h 50mUnited Airlines
Deal found 12/16$999
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 12/175:18 pmBWI - OSL
2 stops37h 42mUnited Airlines
Sun 12/211:50 pmOSL - BWI
2 stops37h 36mUnited Airlines
Deal found 12/16$1,120

Find 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 December 18, 2025.

Round-trip from

$363
(Ticket)

One-way from

$159
(oojo)

Popular in

June

Cheapest in

February

Average price

$763
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 ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 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 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 December 18, 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

Fri 1/9

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Sun 1/25

9:30 pm-6:30 pm

1 stop27h 00m

$400

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Sun 2/1

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Sun 2/8

1:05 pm-6:40 pm

1 stop11h 35m

$415

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Sat 1/31

7:40 pm-8:35 pm

1 stop18h 55m

Oslo Gardermoen

Wed 2/4

1:10 pm-6:40 pm

1 stop11h 30m

$419

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 1/25

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Thu 1/29

1:10 pm-6:30 pm

1 stop11h 20m

$419

Washington, D.C.Oslo

IAD - TRF

IADTRF

Washington, D.C. Dulles Intl

Wed 2/25

8:30 pm-2:05 pm

1 stop11h 35m

Oslo Sandefjord

Tue 3/3

2:35 pm-5:15 pm

1 stop32h 40m

$473

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Sun 1/25

11:05 am-12:10 pm

2 stops19h 05m

Oslo Gardermoen

Wed 1/28

6:05 am-3:33 pm

2 stops15h 28m

$491

Washington, D.C.Oslo

IAD - TRF

IADTRF

Washington, D.C. Dulles Intl

Mon 3/30

8:20 pm-2:30 pm

1 stop12h 10m

Oslo Sandefjord

Wed 4/15

6:00 am-4:50 pm

1 stop16h 50m

$497

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 4/23

5:59 pm-11:55 pm

2 stops23h 56m

Oslo Gardermoen

Wed 4/29

8:30 pm-10:33 pm

2 stops32h 03m

$500

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Fri 1/16

10:00 pm-11:20 pm

1 stop19h 20m

Oslo Gardermoen

Fri 1/23

1:45 pm-8:15 pm

1 stop12h 30m

$500

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 1/14

6:10 am-10:55 am

2 stops22h 45m

Oslo Gardermoen

Sun 1/18

8:45 am-10:03 pm

2 stops19h 18m

$500

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 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 December 12, 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 $379). Flying from Washington, D.C. to Oslo in July is currently the most expensive (average of $488). 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 December 18, 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 December 18, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Oslo, such as Scandinavian Airlines, United Airlines, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,607 reviews
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
9,092 reviews
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
591 reviews
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,635 reviews
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
British Airways
6.7
Okay
7,585 reviews
Scandinavian Airlines
7.4
Good
1,607 reviews

Food

6.7

Boarding

7.6

Crew

8.0

Overall

7.4

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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 $389, 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 KLM - these airlines can fly you to your destination from $400 and $514, respectively. Icelandair is currently priced 34% 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 $166. However, be on the lookout for offers from Icelandair and Lufthansa, 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 Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Travelers on a layover in Reykjavik can visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool, by traveling 23.2 mi, 23.3 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 $379). Flying from Washington, D.C. to Oslo in July is currently the most expensive (average of $488). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Washington, D.C. to Oslo

Discover the top 7 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$388Average$557FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$713FlexibilityNo cancel feeOn-time77%
KLMCheapest$514Average$618FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$531Average$756FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$540Average$732FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$543Average$574FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$552Average$751FlexibilityNo cancel feeOn-time70%

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