$405 Cheap Flights from Washington (DCA) to Oslo (OSL)

View $405 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)

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Cheap Flights from Washington to Oslo (DCA-OSL)

Prices were available within the past 7 days and start at $405 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Tue, Apr 21 - Wed, Apr 29
DCA
Washington
OSL
Oslo
$475 Roundtrip, found 1 day ago
$475
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Tue, Apr 21 from Washington to Oslo, returning Wed, Apr 29, priced at $475 found 1 day ago
Scandinavian Airlines
Sun, Oct 5 - Thu, Oct 23
DCA
Washington
OSL
Oslo
$504 Roundtrip, found 1 day ago
$504
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, Oct 5 from Washington to Oslo, returning Thu, Oct 23, priced at $504 found 1 day ago
Scandinavian Airlines
Thu, Nov 27 - Thu, Dec 4
DCA
Washington
OSL
Oslo
$513 Roundtrip, found 5 days ago
$513
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Thu, Nov 27 from Washington to Oslo, returning Thu, Dec 4, priced at $513 found 5 days ago
Scandinavian Airlines
Tue, Mar 10 - Tue, Mar 17
DCA
Washington
OSL
Oslo
$514 Roundtrip, found 3 days ago
$514
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Tue, Mar 10 from Washington to Oslo, returning Tue, Mar 17, priced at $514 found 3 days ago
Scandinavian Airlines
Thu, Jan 15 - Wed, Jan 21
DCA
Washington
OSL
Oslo
$514 Roundtrip, found 18 hours ago
$514
Roundtrip
found 18 hours ago
Select Scandinavian Airlines flight, departing Thu, Jan 15 from Washington to Oslo, returning Wed, Jan 21, priced at $514 found 18 hours ago
American Airlines
Sat, Jan 10 - Tue, Jan 20
DCA
Washington
OSL
Oslo
$523 Roundtrip, found 1 day ago
$523
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jan 10 from Washington to Oslo, returning Tue, Jan 20, priced at $523 found 1 day ago
Scandinavian Airlines
Tue, May 12 - Tue, May 26
DCA
Washington
OSL
Oslo
$524 Roundtrip, found 2 days ago
$524
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Tue, May 12 from Washington to Oslo, returning Tue, May 26, priced at $524 found 2 days ago
Air Canada
Wed, Dec 3 - Sat, Dec 6
DCA
Washington
OSL
Oslo
$529 Roundtrip, found 1 day ago
$529
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Dec 3 from Washington to Oslo, returning Sat, Dec 6, priced at $529 found 1 day ago
Delta
Tue, Dec 9 - Mon, Dec 15
DCA
Washington
OSL
Oslo
$530 Roundtrip, found 16 hours ago
$530
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Dec 9 from Washington to Oslo, returning Mon, Dec 15, priced at $530 found 16 hours ago
United
Thu, Oct 30 - Mon, Nov 3
DCA
Washington
OSL
Oslo
$535 Roundtrip, found 6 days ago
$535
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 30 from Washington to Oslo, returning Mon, Nov 3, priced at $535 found 6 days ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL) cost?
Grab a cheap one-way flight from $405 or cheap return flight from $475 from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)?
The cheapest month to fly from DCA to OSL is April, when there's less demand. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to OSL flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)?
There aren't any daily nonstop flights departing from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from DCA to OSL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL) route, aim to travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL) last-minute?
Booking your flight from DCA to OSL shortly before your trip is generally more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a DCA to OSL flight and hotel package?
You'll generally save money by booking a DCA to OSL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Gardermoen Airport (OSL)?
It's generally possible to cancel or reschedule your DCA to OSL flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Gardermoen
Airlines serving
Air Canada, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Scandinavian Airlines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$475
Distance
3880 mi

Book with confidence

Book with confidence

Washington to Oslo Flights

The cheapest times to fly from Washington to Oslo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Oslo are during the month of April. You can find some of the cheapest flights from Washington to Oslo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Oslo

Sunday is one of the best days to book for cheap flights from Washington to Oslo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Oslo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Oslo in 2025. You can also book with separate airlines for your outbound and return journeys, from $405 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Oslo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Oslo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Oslo Flights

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