Oslo

$336+ Cheap flights from Reagan-National (DCA) 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — OSL
jan 11 — jan 181
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Cheap flight deals from Reagan-National to Oslo

Cheapest flights from Reagan-National to Oslo
Explore the most affordable flight options available from Reagan-National to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on dezembro 12, 2025.

This British Airways deal was found by Cheapflights users on 12/10. 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.
qua 12/104:49 pmDCA - OSL
2 stops15h 21mBritish Airways
seg 12/1511:35 amOSL - DCA
2 stops15h 55mBritish Airways
Deal found 12/10$926
This Air Canada deal was found by Cheapflights users on 12/10. 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.
ter 12/238:40 pmDCA - OSL
2 stops39h 00mAir Canada
sex 12/266:45 amOSL - DCA
2 stops14h 46mAir Canada
Deal found 12/10$984
This Air Canada deal was found by Cheapflights users on 12/10. 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.
qua 12/246:59 amDCA - OSL
2 stops28h 41mAir Canada
sex 12/266:45 amOSL - DCA
2 stops14h 46mAir Canada
Deal found 12/10$1,040
This American Airlines deal was found by Cheapflights users on 12/10. 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.
qua 12/103:54 pmDCA - OSL
2 stops16h 16mAmerican Airlines
qua 12/176:55 amOSL - DCA
2 stops18h 02mAmerican Airlines
Deal found 12/10$1,085
This United Airlines deal was found by Cheapflights users on 12/11. 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.
sex 12/1210:30 amDCA - OSL
2 stops20h 35mUnited Airlines
sex 12/196:45 amOSL - DCA
2 stops22h 05mUnited Airlines
Deal found 12/11$1,132
This American Airlines deal was found by Cheapflights users on 12/10. 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.
qua 12/103:54 pmDCA - OSL
2 stops16h 16mAmerican Airlines
dom 12/2112:25 pmOSL - DCA
2 stops16h 32mAmerican Airlines
Deal found 12/10$1,154
This oojo deal was found by Cheapflights users on 12/9. 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.
qua 12/106:10 amDCA - OSL
2 stops22h 45mBritish Airways
qua 12/176:55 amOSL - DCA
2 stops20h 03mBritish Airways
Deal found 12/9$1,170
This Air Canada deal was found by Cheapflights users on 12/10. 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.
qua 12/246:59 amDCA - OSL
2 stops28h 41mAir Canada
dom 12/2811:50 amOSL - DCA
2 stops28h 31mAir Canada
Deal found 12/10$1,192
This Air Canada deal was found by Cheapflights users on 12/10. 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.
ter 12/238:40 pmDCA - OSL
2 stops39h 00mAir Canada
dom 12/2811:50 amOSL - DCA
2 stops28h 31mAir Canada
Deal found 12/10$1,218
This Air Canada deal was found by Cheapflights users on 12/10. 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.
qua 12/246:59 amDCA - OSL
2 stops28h 41mAir Canada
seg 12/2911:50 amOSL - DCA
2 stops28h 31mAir Canada
Deal found 12/10$1,266
This Air Canada deal was found by Cheapflights users on 12/10. 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.
qua 12/246:59 amDCA - OSL
2 stops28h 41mAir Canada
sáb 12/2711:50 amOSL - DCA
2 stops33h 41mAir Canada
Deal found 12/10$1,268
This American Airlines deal was found by Cheapflights users on 12/10. 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.
qua 12/104:49 pmDCA - OSL
2 stops15h 21mAmerican Airlines
seg 12/297:20 amOSL - DCA
2 stops17h 22mAmerican Airlines
Deal found 12/10$1,290

Find flight deals from Reagan-National to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 dezembro 12, 2025.

Round-trip from

$451
(FlightHub)

One-way from

$336
(oojo)

Popular in

June

Cheapest in

February

Average price

$747
From Washington, D.C. Reagan-National to Oslo
One-way flight from Washington, D.C. Reagan-National to Oslo
Highest demand for flights based on searches. 15% potential increase in price ($106 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 dezembro 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Oslo that are best for you.

Fly from

Reagan-National

Fly to

Oslo

Route

Depart

Return

Price

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom 1/25

11:10 am-9:20 am

2 stops16h 10m

Oslo Gardermoen

dom 2/1

10:00 am-10:48 pm

2 stops18h 48m

$488

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom 1/25

8:45 pm-10:55 am

2 stops32h 10m

Oslo Gardermoen

dom 2/1

8:45 am-10:03 pm

2 stops19h 18m

$500

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

sáb 1/10

8:45 pm-10:35 am

2 stops31h 50m

Oslo Gardermoen

sáb 1/17

8:50 pm-10:03 pm

2 stops31h 13m

$500

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

ter 1/27

10:15 pm-10:55 am

2 stops30h 40m

Oslo Gardermoen

dom 2/1

8:45 am-10:03 pm

2 stops19h 18m

$500

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

sex 1/16

1:44 pm-5:30 pm

2 stops21h 46m

Oslo Gardermoen

seg 1/19

2:40 pm-10:03 am

2 stops25h 23m

$511

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom 2/8

1:35 pm-10:40 pm

2 stops27h 05m

Oslo Gardermoen

dom 2/15

7:20 am-6:43 pm

2 stops17h 23m

$511

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom 3/8

4:45 pm-1:45 pm

2 stops16h 00m

Oslo Gardermoen

seg 3/16

2:40 pm-11:00 pm

2 stops37h 20m

$511

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

ter 2/24

12:05 pm-3:20 pm

2 stops21h 15m

Oslo Gardermoen

sáb 2/28

11:05 am-7:56 pm

2 stops14h 51m

$512

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom 5/3

10:10 am-4:05 pm

2 stops23h 55m

Oslo Gardermoen

dom 5/10

7:45 am-10:15 pm

2 stops20h 30m

$513

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

sex 1/9

5:00 pm-1:50 pm

2 stops14h 50m

Oslo Gardermoen

sex 1/16

9:35 am-10:48 pm

2 stops19h 13m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 30 results
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Best time to book a flight from Reagan-National to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Reagan-National 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. Reagan-National Airport to Oslo

What is the cheapest time of day to fly from DCA to OSL?

Find hourly flight availability from Reagan-National 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 dezembro 12, 2025.

When flying from Washington, D.C. Reagan-National Airport to Oslo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National Airport to Oslo?

    Airlines like Scandinavian Airlines and British Airways fly from Washington, D.C. Reagan-National Airport to Oslo in about 16h 10m. The time it takes to get you to your destination can typically vary by up to 16h. There are 3877 mi between Washington, D.C. Reagan-National Airport and Oslo. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Reagan-National to Oslo that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Oslo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Oslo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Oslo.

  • Can I find deals for business class flights from Reagan-National to Oslo?

    Yes. Cheapflights offers flight deals from Reagan-National 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.

See more FAQs

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