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$374+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — OSL
Feb 9 — Feb 161
Sun 2/9
Sun 2/16
1 adult, Economy
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Cheap 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 February 4, 2025.

Round-trip from

$548
(StudentUniverse)

One-way from

$374
(Mytrip)

Popular in

July

Cheapest in

December

Average price

$605
From Washington, D.C. Reagan-National to Oslo
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One-way flight from Washington, D.C. Reagan-National to Oslo
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Highest demand for flights based on searches. 29% potential increase in price ($289 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 4, 2025.

This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/45:55 pmDCA - OSL
2 stops14h 20mAmerican Airlines
Tue 3/117:15 amOSL - DCA
2 stops18h 00mAmerican Airlines
Deal found 2/4$539
This StudentUniverse deal was found by Cheapflights users on 2/3. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:05 pmDCA - OSL
2 stops15h 30mFinnair
Tue 3/118:45 amOSL - DCA
2 stops19h 15mFinnair
Deal found 2/3$548
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Sat 2/811:10 amDCA - OSL
2 stops19h 00mAir Canada
Wed 2/196:20 amOSL - DCA
2 stops15h 09mAir Canada
Deal found 2/3$556
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/267:00 pmDCA - OSL
2 stops16h 55mUnited Airlines
Mon 3/36:20 amOSL - DCA
2 stops15h 09mUnited Airlines
Deal found 2/2$563
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 3/174:25 pmDCA - OSL
2 stops19h 00mDelta
Sun 3/2312:40 pmOSL - DCA
2 stops26h 47mDelta
Deal found 2/2$582
This British Airways deal was found by Cheapflights users on 2/2. 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.
Fri 3/146:00 amDCA - OSL
2 stops23h 35mBritish Airways
Sun 3/237:15 amOSL - DCA
2 stops31h 14mBritish Airways
Deal found 2/2$600
This Scandinavian Airlines deal was found by Cheapflights users on 2/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2611:39 amDCA - OSL
2 stops16h 41mScandinavian Airlines
Mon 3/311:10 pmOSL - DCA
1 stop15h 18mScandinavian Airlines
Deal found 2/3$697
This Air Canada deal was found by Cheapflights users on 2/3. 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 3/174:10 pmDCA - OSL
2 stops18h 10mMultiple Airlines
Thu 3/206:30 amOSL - DCA
2 stops21h 07mMultiple Airlines
Deal found 2/3$765
This oojo deal was found by Cheapflights users on 2/4. 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 10/128:30 amDCA - OSL
2 stops24h 55mIcelandair
Wed 10/221:50 pmOSL - DCA
2 stops26h 53mIcelandair
Deal found 2/4$798
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/3. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/412:29 pmDCA - OSL
2 stops17h 36mTAP AIR PORTUGAL
Tue 3/114:10 pmOSL - DCA
3 stops32h 48mTAP AIR PORTUGAL
Deal found 2/3$1,130
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/231:30 pmDCA - TRF
2 stops14h 35mMultiple Airlines
Sun 7/67:20 pmTRF - DCA
2 stops30h 32mMultiple Airlines
Deal found 2/3$1,491
This KAYAK deal was found by Cheapflights users on 2/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/231:30 pmDCA - TRF
2 stops14h 35mScandinavian Airlines
Sun 7/67:20 pmTRF - DCA
2 stops33h 10mScandinavian Airlines
Deal found 2/3$1,524

Find flights from Reagan-National to Oslo within your budget

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 February 4, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 3/4

5:55 pm-2:15 pm

2 stops14h 20m

Oslo Gardermoen

Tue 3/11

7:15 am-8:15 pm

2 stops18h 00m

$539

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 3/4

7:05 pm-4:35 pm

2 stops15h 30m

Oslo Gardermoen

Tue 3/11

8:45 am-11:00 pm

2 stops19h 15m

$548

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 3/5

6:00 am-5:55 pm

2 stops29h 55m

Oslo Gardermoen

Wed 3/12

6:20 am-9:00 pm

2 stops19h 40m

$558

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 2/26

7:00 pm-5:55 pm

2 stops16h 55m

Oslo Gardermoen

Mon 3/3

6:20 am-3:29 pm

2 stops15h 09m

$563

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 3/17

4:25 pm-4:25 pm

2 stops19h 00m

Oslo Gardermoen

Sun 3/23

12:40 pm-10:27 am

2 stops26h 47m

$582

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Fri 3/14

6:00 am-10:35 am

2 stops23h 35m

Oslo Gardermoen

Thu 3/20

7:00 am-10:30 pm

2 stops20h 30m

$600

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 3/26

11:39 am-9:20 am

2 stops16h 41m

Oslo Gardermoen

Mon 3/31

1:10 pm-10:28 pm

1 stop15h 18m

$697

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 3/17

4:10 pm-3:20 pm

2 stops18h 10m

Oslo Gardermoen

Thu 3/20

6:30 am-10:37 pm

2 stops21h 07m

$765

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 7/14

3:00 pm-3:25 pm

2 stops18h 25m

Oslo Gardermoen

Mon 7/21

4:30 pm-6:59 pm

2 stops32h 29m

$972

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 3/4

12:29 pm-12:05 pm

2 stops17h 36m

Oslo Gardermoen

Tue 3/11

4:10 pm-7:58 pm

3 stops32h 48m

$1,130

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 22 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.

Travel insights for flights from Reagan-National to Oslo

Get recent, data-driven insights about flights from Reagan-National to Oslo including ideal travel times, pricing trends, and more.

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 February 4, 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 40% versus a flight at noon.

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 February 4, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Oslo, such as Delta, Finnair and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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
8,408 reviews
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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
1,284 reviews
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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.

United Airlines
7.4
Good
8,887 reviews
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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.

Scandinavian Airlines
7.3
Good
1,320 reviews
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,408 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

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 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.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Oslo round-trip?

    Finnair, at $548, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Oslo.Alternate airlines to your destination round-trip include Air Canada and United Airlines. These flights start at 19% lower than the current average price 3 months from now.

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

    $416 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Scandinavian Airlines, with prices starting from $455 and $576, respectively.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Oslo?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Oslo (average of $567). Flying from Washington, D.C. Reagan-National Airport to Oslo in June is currently the most expensive (average of $1,144). 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.

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Alternative routes for Reagan-National to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
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