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$472+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — OSL
mar. 13 — mar. 201
jue. 3/13
jue. 3/20
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 marzo 8, 2025.

Round-trip from

$515
(Finnair)

One-way from

$472
(Delta)

Popular in

July

Cheapest in

December

Average price

$765
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. 30% potential increase in price ($293 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 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 marzo 8, 2025.

This Finnair deal was found by Cheapflights users on 3/7. 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.
mié. 4/26:59 pmDCA - OSL
2 stops22h 31mFinnair
mié. 4/98:35 amOSL - DCA
2 stops19h 54mFinnair
Deal found 3/7$515
This United Airlines deal was found by Cheapflights users on 3/7. 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.
jue. 3/204:10 pmDCA - OSL
2 stops20h 25mUnited Airlines
lun. 3/246:20 amOSL - DCA
2 stops19h 40mUnited Airlines
Deal found 3/7$563
This Delta deal was found by Cheapflights users on 3/7. 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.
lun. 3/244:25 pmDCA - OSL
2 stops14h 30mDelta
dom. 4/611:50 amOSL - DCA
2 stops14h 06mDelta
Deal found 3/7$573
This Booking.com deal was found by Cheapflights users on 3/7. 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.
sáb. 5/103:54 pmDCA - OSL
2 stops18h 31mBritish Airways
sáb. 5/178:20 amOSL - DCA
2 stops20h 16mBritish Airways
Deal found 3/7$608
This Gurufare deal was found by Cheapflights users on 3/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/711:00 amDCA - OSL
1 stop13h 50mScandinavian Airlines
jue. 5/221:10 pmOSL - DCA
1 stop15h 35mScandinavian Airlines
Deal found 3/6$609
This United deal was found by Cheapflights users on 3/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/286:30 pmDCA - OSL
2 stops16h 00mMultiple Airlines
mar. 4/16:45 amOSL - DCA
2 stops20h 23mMultiple Airlines
Deal found 3/7$655
This Priceline deal was found by Cheapflights users on 3/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/269:40 amDCA - OSL
2 stops21h 25mAir Canada
mar. 6/36:35 amOSL - DCA
2 stops21h 18mAir Canada
Deal found 3/7$688
This oojo deal was found by Cheapflights users on 3/7. 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.
dom. 8/248:00 amDCA - OSL
2 stops22h 35mIcelandair
sáb. 8/304:30 pmOSL - DCA
2 stops23h 11mIcelandair
Deal found 3/7$870
This American Airlines deal was found by Cheapflights users on 3/7. 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.
mar. 7/297:00 pmDCA - OSL
2 stops15h 35mAmerican Airlines
mié. 8/611:35 amOSL - DCA
2 stops16h 40mAmerican Airlines
Deal found 3/7$886
This Aeromexico deal was found by Cheapflights users on 3/6. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/146:25 pmDCA - OSL
2 stops22h 05mAir France
lun. 7/215:35 pmOSL - DCA
2 stops34h 55mAir France
Deal found 3/6$957

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 marzo 8, 2025.

Fly from

Reagan-National

Fly to

Oslo

Route

Depart

Return

Price

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

mié. 4/2

6:59 pm-11:30 pm

2 stops22h 31m

Oslo Gardermoen

mié. 4/9

8:35 am-10:29 pm

2 stops19h 54m

$515

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

jue. 3/20

4:10 pm-5:35 pm

2 stops20h 25m

Oslo Gardermoen

lun. 3/24

6:20 am-9:00 pm

2 stops19h 40m

$563

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

lun. 3/24

4:25 pm-11:55 am

2 stops14h 30m

Oslo Gardermoen

dom. 4/6

11:50 am-7:56 pm

2 stops14h 06m

$573

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

sáb. 5/10

3:54 pm-4:25 pm

2 stops18h 31m

Oslo Gardermoen

sáb. 5/17

8:20 am-10:36 pm

2 stops20h 16m

$608

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

mié. 5/7

11:00 am-6:50 am

1 stop13h 50m

Oslo Gardermoen

jue. 5/22

1:10 pm-10:45 pm

1 stop15h 35m

$609

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

vie. 3/28

6:30 pm-3:30 pm

2 stops16h 00m

Oslo Gardermoen

mar. 4/1

6:45 am-9:08 pm

2 stops20h 23m

$655

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

lun. 5/26

9:40 am-1:05 pm

2 stops21h 25m

Oslo Gardermoen

mar. 6/3

6:35 am-9:53 pm

2 stops21h 18m

$688

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom. 8/24

8:00 am-12:35 pm

2 stops22h 35m

Oslo Gardermoen

sáb. 8/30

4:30 pm-9:41 am

2 stops23h 11m

$870

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

mar. 7/29

7:00 pm-4:35 pm

2 stops15h 35m

Oslo Gardermoen

mié. 8/6

11:35 am-10:15 pm

2 stops16h 40m

$886

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

lun. 7/14

6:25 pm-10:30 pm

2 stops22h 05m

Oslo Gardermoen

lun. 7/21

5:35 pm-10:30 pm

2 stops34h 55m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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 marzo 8, 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 marzo 8, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Oslo, such as Delta, Finnair and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
8,024 reviews
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,271 reviews
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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.

Air France
7.4
Good
1,431 reviews
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
8,649 reviews
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,317 reviews
Delta
8.0
Very good
8,024 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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 $515, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Oslo.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 23% 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?

    $472 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $482 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 $1,119). 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

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