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Oslo Gardermoen

$260+ Cheap flights from Washington, D.C. (WAS) to Oslo Gardermoen (OSL)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Oslo Gardermoen 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 Gardermoen

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Oslo Gardermoen (OSL). 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 29, 2025.

Round-trip from

$396
(Ticket)

One-way from

$260
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$693
From Washington, D.C. (WAS) to Oslo Gardermoen
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One-way flight from Washington, D.C. (WAS) to Oslo Gardermoen
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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 Gardermoen

Cheapest flights from Washington, D.C. to Oslo Gardermoen
Explore the most affordable flight options available from Washington, D.C. to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 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 Ovago deal was found by Cheapflights users on 7/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:35 pmBWI - OSL
1 stop20h 05mBritish Airways
Tue 12/27:25 pmOSL - BWI
1 stop29h 20mBritish Airways
Deal found 7/27$472
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.
Thu 9/118:30 pmIAD - OSL
1 stop12h 55mIcelandair
Thu 9/181:50 pmOSL - IAD
1 stop11h 30mIcelandair
Deal found 7/28$481
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.
Mon 12/11:20 pmIAD - OSL
2 stops16h 50mMultiple Airlines
Mon 12/81:00 pmOSL - IAD
1 stop33h 40mMultiple Airlines
Deal found 7/28$485
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 12/88:50 pmOSL - IAD
2 stops24h 45mFinnair
Deal found 7/28$491
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:05 amDCA - OSL
2 stops19h 05mAir Canada
Mon 12/86:45 amOSL - DCA
2 stops14h 46mAir Canada
Deal found 7/27$492
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:20 pmIAD - OSL
2 stops16h 50mAir Canada
Tue 12/26:45 amOSL - IAD
2 stops20h 14mAir Canada
Deal found 7/27$492
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amDCA - OSL
2 stops25h 05mMultiple Airlines
Wed 9/175:40 amOSL - DCA
2 stops22h 11mMultiple Airlines
Deal found 7/27$495
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 oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:05 pmIAD - OSL
1 stop18h 30mScandinavian Airlines
Sat 9/208:55 pmOSL - IAD
1 stop29h 04mScandinavian Airlines
Deal found 7/27$510

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Oslo Gardermoen 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 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Oslo Gardermoen Airport that are best for you.

Fly from

Washington, D.C.

Fly to

Oslo Gardermoen

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

Thu 9/11

8:30 pm-3:25 pm

1 stop12h 55m

Oslo Gardermoen

Thu 9/18

1:50 pm-7:20 pm

1 stop11h 30m

$481

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 8/17

8:45 pm-1:05 pm

1 stop34h 20m

Oslo Gardermoen

Mon 8/25

6:45 am-9:01 pm

2 stops20h 16m

$492

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 9/10

6:00 am-1:05 pm

2 stops25h 05m

Oslo Gardermoen

Wed 9/17

5:40 am-9:51 pm

2 stops22h 11m

$495

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 8/17

2:25 pm-6:05 pm

2 stops21h 40m

Oslo Gardermoen

Mon 8/25

6:45 am-9:01 pm

2 stops20h 16m

$501

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

Sun 9/14

10:05 pm-10:35 pm

1 stop18h 30m

Oslo Gardermoen

Sat 9/20

8:55 pm-7:59 pm

1 stop29h 04m

$510

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 9/10

3:35 pm-10:40 am

2 stops13h 05m

Oslo Gardermoen

Wed 9/24

7:40 am-6:39 pm

2 stops16h 59m

$513

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Tue 8/26

7:25 pm-11:25 pm

2 stops22h 00m

Oslo Gardermoen

Tue 9/2

7:45 am-6:52 pm

2 stops17h 07m

$522

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

Wed 8/20

6:54 pm-11:30 pm

2 stops22h 36m

Oslo Gardermoen

Wed 9/3

7:40 am-9:46 pm

2 stops20h 06m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 48 results
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Best time to book a flight from Washington, D.C. to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen 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 Gardermoen Airport

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

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

The best time to book flights from Washington, D.C. to Oslo Gardermoen Airport is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Oslo Gardermoen Airport?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo Gardermoen Airport (average of $567). Flying from Washington, D.C. to Oslo Gardermoen Airport 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 Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

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

What’s the top layover airport for flights from Washington, D.C. to Oslo Gardermoen Airport?

Share of 1-stop round-trip flights from Washington, D.C. to Oslo Gardermoen Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Copenhagen (CPH) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. to Oslo Gardermoen Airport on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Oslo Gardermoen Airport?

Average round-trip fare for 1-stop flights from Washington, D.C. to Oslo Gardermoen Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $498.

What’s the fastest layover option from Washington, D.C. to Oslo Gardermoen Airport?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Oslo Gardermoen Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 1h 58m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Oslo Gardermoen Airport?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Oslo Gardermoen Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Copenhagen (CPH) offer the fastest connection on this route, with an average layover time of 1h 01m.

Reviews of airlines servicing Oslo Gardermoen

Get insights into the airlines that provide service to Oslo Gardermoen. 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 Gardermoen. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, Air France, and SWISS from Washington, D.C. to Oslo Gardermoen Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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
1,683 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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
8,893 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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!
Scandinavian Airlines
7.3
Good
1,449 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

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 Gardermoen. 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 Gardermoen Airport round-trip?

    Our cheapest airline available from Washington, D.C. to Oslo Gardermoen Airport is Icelandair. Our recent data shows that you can find tickets from as low as $396 on this airline. Additional options worth looking into are Air Canada and Lufthansa, starting at $501 and $507 round-trip. Icelandair is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $289. Icelandair flights start at $355 while deals on Delta start at $383 one-way.

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

    The most popular route from Washington, D.C. to Oslo Gardermoen Airport is Washington, D.C. Dulles Intl - Oslo Gardermoen. You may also consider Washington, D.C. Reagan-National - Oslo Gardermoen or Baltimore/Washington - Oslo Gardermoen.

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

    Washington, D.C. to Oslo Gardermoen Airport 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?

    Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. 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 Gardermoen Airport flights?

    Washington, D.C. to Oslo Gardermoen Airport flights that have layovers will least frequently stop in Copenhagen.

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

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

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

    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 Gardermoen.

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

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo Gardermoen Airport (average of $567). Flying from Washington, D.C. to Oslo Gardermoen Airport 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

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Gardermoen

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Alternative routes for Washington, D.C. to Oslo Gardermoen

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
Dulles Intl to Sandefjord flights

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

Discover the top 8 airlines that operate flights from Washington, D.C. to Oslo Gardermoen. 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 29, 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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