$608 Cheap Flights from Oslo (OSL) to Washington (DCA)

View $608 flight on Sat, Nov 15, 2025Opens in a new window

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

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Cheap Flights from Oslo to Washington (OSL-DCA)

Prices were available within the past 7 days and start at $608 for one-way flights and $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Nov 4 - Wed, Nov 19
OSL
Oslo
DCA
Washington
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Nov 4 from Oslo to Washington, returning Wed, Nov 19, priced at $469 found 1 day ago
American Airlines
Mon, Sep 22 - Mon, Sep 29
OSL
Oslo
DCA
Washington
$478 Roundtrip, found 13 hours ago
$478
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Sep 22 from Oslo to Washington, returning Mon, Sep 29, priced at $478 found 13 hours ago
Air Canada
Thu, Oct 23 - Wed, Oct 29
OSL
Oslo
DCA
Washington
$485 Roundtrip, found 1 day ago
$485
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Oct 23 from Oslo to Washington, returning Wed, Oct 29, priced at $485 found 1 day ago
American Airlines
Mon, Sep 22 - Mon, Sep 29
OSL
Oslo
DCA
Washington
$490 Roundtrip, found 13 hours ago
$490
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Sep 22 from Oslo to Washington, returning Mon, Sep 29, priced at $490 found 13 hours ago
American Airlines
Mon, Sep 22 - Mon, Sep 29
OSL
Oslo
DCA
Washington
$491 Roundtrip, found 13 hours ago
$491
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Sep 22 from Oslo to Washington, returning Mon, Sep 29, priced at $491 found 13 hours ago
British Airways
Tue, Jan 6 - Sun, Jan 11
OSL
Oslo
DCA
Washington
$492 Roundtrip, found 3 days ago
$492
Roundtrip
found 3 days ago
Select British Airways flight, departing Tue, Jan 6 from Oslo to Washington, returning Sun, Jan 11, priced at $492 found 3 days ago
British Airways
Tue, Nov 4 - Wed, Nov 19
OSL
Oslo
DCA
Washington
$494 Roundtrip, found 1 day ago
$494
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Nov 4 from Oslo to Washington, returning Wed, Nov 19, priced at $494 found 1 day ago
Delta
Mon, Sep 22 - Mon, Sep 29
OSL
Oslo
DCA
Washington
$497 Roundtrip, found 13 hours ago
$497
Roundtrip
found 13 hours ago
Select Delta flight, departing Mon, Sep 22 from Oslo to Washington, returning Mon, Sep 29, priced at $497 found 13 hours ago
British Airways
Fri, Oct 31 - Sat, Nov 8
OSL
Oslo
DCA
Washington
$499 Roundtrip, found 6 days ago
$499
Roundtrip
found 6 days ago
Select British Airways flight, departing Fri, Oct 31 from Oslo to Washington, returning Sat, Nov 8, priced at $499 found 6 days ago
KLM
Mon, Sep 22 - Mon, Sep 29
OSL
Oslo
DCA
Washington
$524 Roundtrip, found 13 hours ago
$524
Roundtrip
found 13 hours ago
Select KLM flight, departing Mon, Sep 22 from Oslo to Washington, returning Mon, Sep 29, priced at $524 found 13 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $489
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $489
Flights from Oslo (OSL) to Washington (DCA)
Origin airport
Gardermoen
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, American Airlines, British Airways, Delta, Finnair, Iberia, LOT-Polish Airlines, Scandinavian Airlines, TAP Portugal, United
Roundtrip price
$468
Distance
3880 mi

Oslo to Washington Flights

The cheapest times to fly from Oslo to Washington

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 Oslo to Washington are during the month of November. You can find some of the cheapest flights from Oslo to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Washington

Sunday is one of the best days to book for cheap flights from Oslo to Washington: 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 Oslo to Washington

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 Oslo to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $608 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 Oslo to Washington 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 Oslo to Washington 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.

 

Frequently asked questions

How much does a flight from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA) cost?
Get a cheap one-way flight from $608 or cheap return flight from $469 from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from OSL to DCA is November, 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 Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA)?
To find the cheapest airline flying from OSL to DCA, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA)?
There aren't any daily direct flights available from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from OSL to DCA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA)?
Choose a flight from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA) last-minute?
Last-minute fares from OSL to DCA are usually more expensive. To lock in the lowest rates, start searching for flights early. That being said, if you're flexible with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book an OSL to DCA flight and hotel package?
You'll typically save money by securing an OSL to DCA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Ronald Reagan Washington National Airport (DCA)?
It's generally possible to reschedule or cancel your OSL to DCA 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 possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.