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$266+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Oslo are usually found in February or January, booked 86 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 April 22, 2025.

Round-trip from

$452
(oojo)

One-way from

$266
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$523
From Washington, D.C. (WAS) to Oslo
Search Deals
One-way flight from Washington, D.C. (WAS) to Oslo
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Highest demand for flights based on searches. 19% potential increase in price ($144 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 22, 2025.

This oojo deal was found by Cheapflights users on 4/22. 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.
Sun 11/307:30 pmBWI - OSL
1 stop10h 05mIcelandair
Sun 12/79:30 pmOSL - BWI
1 stop27h 00mIcelandair
Deal found 4/22$438
This oojo deal was found by Cheapflights users on 4/21. 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.
Thu 10/168:30 pmIAD - OSL
1 stop12h 55mIcelandair
Sun 10/2612:50 pmOSL - IAD
1 stop14h 20mIcelandair
Deal found 4/21$477
This FlightHub deal was found by Cheapflights users on 4/21. 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 9/410:05 pmIAD - OSL
1 stop12h 30mScandinavian Airlines
Thu 9/112:45 pmOSL - IAD
1 stop11h 14mScandinavian Airlines
Deal found 4/21$491
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 12/36:05 pmBWI - OSL
1 stop15h 05mMultiple Airlines
Sun 12/76:45 pmOSL - BWI
2 stops28h 10mMultiple Airlines
Deal found 4/22$512
This deal was found by Cheapflights users on 4/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:05 pmIAD - TRF
1 stop10h 15mScandinavian Airlines
Mon 10/132:55 pmTRF - IAD
1 stop11h 04mScandinavian Airlines
Deal found 4/22$523
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 11/62:54 pmDCA - OSL
2 stops14h 01mAmerican Airlines
Tue 11/111:15 pmOSL - DCA
2 stops15h 18mAmerican Airlines
Deal found 4/22$558
This British Airways deal was found by Cheapflights users on 4/22. 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.
Sat 11/298:30 pmBWI - OSL
1 stop11h 40mBritish Airways
Sat 12/611:25 amOSL - BWI
1 stop13h 20mBritish Airways
Deal found 4/22$564
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:00 amDCA - OSL
2 stops19h 10mAir Canada
Sat 12/66:20 amOSL - DCA
2 stops14h 59mAir Canada
Deal found 4/22$564
This FlightHub deal was found by Cheapflights users on 4/22. 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 11/610:20 pmIAD - OSL
1 stop13h 35mMultiple Airlines
Tue 11/116:20 amOSL - IAD
2 stops14h 53mMultiple Airlines
Deal found 4/22$565
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 11/285:50 pmIAD - OSL
1 stop15h 05mUnited Airlines
Sun 12/76:20 amOSL - IAD
2 stops14h 53mUnited Airlines
Deal found 4/22$570
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/63:55 pmIAD - OSL
2 stops15h 40mAir Canada
Tue 11/116:20 amOSL - IAD
2 stops14h 53mAir Canada
Deal found 4/22$572
This Delta deal was found by Cheapflights users on 4/22. 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 8/125:30 pmBWI - OSL
2 stops14h 15mDelta
Tue 8/1911:50 amOSL - BWI
2 stops15h 53mDelta
Deal found 4/22$575

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 April 22, 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

Tue 8/12

8:30 pm-3:25 pm

1 stop12h 55m

Oslo Gardermoen

Tue 8/19

4:30 pm-7:25 pm

1 stop32h 55m

$452

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Thu 10/16

8:30 pm-3:25 pm

1 stop12h 55m

Oslo Gardermoen

Sun 10/26

12:50 pm-10:10 pm

1 stop14h 20m

$477

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Thu 9/4

10:05 pm-4:35 pm

1 stop12h 30m

Oslo Gardermoen

Thu 9/11

2:45 pm-7:59 pm

1 stop11h 14m

$491

Washington, D.C.Oslo

IAD - TRF

IADTRF

Washington, D.C. Dulles Intl

Wed 10/8

10:05 pm-2:20 pm

1 stop10h 15m

Oslo Sandefjord

Mon 10/13

2:55 pm-7:59 pm

1 stop11h 04m

$523

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Tue 5/13

10:25 am-1:05 pm

2 stops20h 40m

Oslo Gardermoen

Thu 6/12

5:40 am-4:15 pm

1 stop16h 35m

$574

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Tue 8/12

5:30 pm-1:45 pm

2 stops14h 15m

Oslo Gardermoen

Tue 8/19

11:50 am-9:43 pm

2 stops15h 53m

$575

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 5/7

9:40 am-1:05 pm

2 stops21h 25m

Oslo Gardermoen

Sun 5/11

3:35 pm-10:19 am

2 stops24h 44m

$579

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Wed 8/13

6:50 pm-10:55 pm

1 stop22h 05m

Oslo Gardermoen

Fri 8/22

6:15 am-5:40 pm

1 stop17h 25m

$583

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Wed 5/7

9:45 am-1:05 pm

2 stops21h 20m

Oslo Gardermoen

Sun 5/11

5:40 am-9:25 pm

2 stops21h 45m

$583

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 8/4

8:30 pm-6:35 pm

2 stops16h 05m

Oslo Gardermoen

Fri 8/22

6:30 am-3:35 pm

1 stop15h 05m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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 April 18, 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 86 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 $1,101). 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 April 22, 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.

Rainfall in Oslo by month

Plan your trip to Oslo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.

Temperature in Oslo by month

Plan your trip to Oslo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 April 22, 2025.
To help decide which airline to fly from Washington, D.C. to Oslo, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $452, 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 Delta - these airlines can fly you to your destination from $491 and $575, respectively. Icelandair is currently priced 26% 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 Icelandair, with whom users have recently found tickets for as low as $303. However, be on the lookout for offers from TAP AIR PORTUGAL and Air Canada, 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 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 $47 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 $1,101). 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$395Average$619FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$411Average$673FlexibilityNo cancel feeOn-time77%
DeltaCheapest$501Average$592FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$760FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$531Average$752FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$535Average$719FlexibilityNo cancel feeOn-time76%
KLMCheapest$542Average$720FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$566Average$640FlexibilityNo cancel feeOn-time77%

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