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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport (average of $567). Flying from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,005). 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.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Oslo Gardermoen Airport 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 Gardermoen Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to Oslo Gardermoen Airport, 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).

What is the cheapest day to fly round-trip from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport?

Travelers have found that booking a Wednesday departure is the best way to save up to 68% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport?

Travelers have found it’s best to book a flight 60 days in advance to save up to 20% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 60 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport 1-2 weeks in advance for as low as $467, or $539 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport?

The best pricing can be found in the month of February. Prices to Oslo Gardermoen Airport from Washington, D.C. Reagan-National Airport average $590. You can even find prices in February for less than $590, as users have found deals to Oslo Gardermoen Airport from as low as $192. The month of June appears to be one of the more expensive times to travel to Oslo Gardermoen Airport from Washington, D.C. Reagan-National Airport. Flying in the targeted month can save you up to 29%.

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

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

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

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 Gardermoen.

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

Yes. Cheapflights offers flight deals from Reagan-National to Oslo Gardermoen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$354+ Flights from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport

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Cheap flight deals from Reagan-National to Oslo Gardermoen

Round-trip from	$461 (Scandinavian Airlines)
One-way from	$354 (Kiwi.com)
Popular in	August
Cheapest in	December
Average price	$599

From Washington, D.C. Reagan-National to Oslo Gardermoen

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One-way flight from Washington, D.C. Reagan-National to Oslo Gardermoen

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Highest demand for flights based on searches. 24% potential increase in price ($210 potential increase over avg. RT price).

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Cheapest flight prices on average. 11% potential price decrease ($68 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Reagan-National to Oslo Gardermoen

Cheapest flights from Reagan-National to Oslo Gardermoen
Explore the most affordable flight options available from Reagan-National to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Tue 10/146:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Tue 10/2111:05 amOSL - DCA

2 stops17h 02mScandinavian Airlines

Deal found 9/11

$481

Tue 10/71:15 pmDCA - OSL

2 stops15h 05mScandinavian Airlines

Tue 10/219:00 amOSL - DCA

2 stops16h 40mScandinavian Airlines

Deal found 9/11

$500

Tue 11/256:00 amDCA - OSL

2 stops24h 10mMultiple Airlines

Tue 12/26:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/10

$501

Sat 11/2911:05 amDCA - OSL

2 stops19h 05mAir Canada

Sat 12/66:15 amOSL - DCA

2 stops15h 16mAir Canada

Deal found 9/10

$528

Thu 11/134:00 pmDCA - OSL

2 stops14h 10mMultiple Airlines

Mon 11/176:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/11

$533

Thu 10/303:20 pmDCA - OSL

2 stops14h 40mMultiple Airlines

Tue 11/46:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/11

$535

Mon 12/15:00 pmDCA - OSL

2 stops13h 55mUnited Airlines

Mon 12/86:15 amOSL - DCA

2 stops15h 16mUnited Airlines

Deal found 9/11

$539

Mon 12/12:59 pmDCA - OSL

2 stops16h 51mDelta

Thu 12/116:25 amOSL - DCA

2 stops17h 34mDelta

Deal found 9/10

$544

Sun 10/267:06 pmDCA - OSL

2 stops16h 29mAmerican Airlines

Sun 11/27:20 amOSL - DCA

2 stops18h 33mAmerican Airlines

Deal found 9/11

$545

Sat 10/255:00 pmDCA - OSL

2 stops15h 05mMultiple Airlines

Sat 11/19:35 amOSL - DCA

2 stops16h 20mMultiple Airlines

Deal found 9/10

$549

Sat 10/182:55 pmDCA - OSL

2 stops17h 25mMultiple Airlines

Sat 11/111:20 amOSL - DCA

2 stops16h 37mMultiple Airlines

Deal found 9/10

$552

Best flights from Reagan-National to Oslo Gardermoen
Discover carefully curated flight deals from Reagan-National to Oslo Gardermoen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 10/146:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Tue 10/2111:05 amOSL - DCA

2 stops17h 02mScandinavian Airlines

Deal found 9/11

$481

Sat 11/2911:05 amDCA - OSL

2 stops19h 05mAir Canada

Sat 12/66:15 amOSL - DCA

2 stops15h 16mAir Canada

Deal found 9/10

$528

Thu 11/134:00 pmDCA - OSL

2 stops14h 10mMultiple Airlines

Mon 11/176:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/11

$533

Thu 1/14:30 pmDCA - OSL

2 stops15h 45mAmerican Airlines

Sun 1/1111:30 amOSL - DCA

2 stops16h 45mAmerican Airlines

Deal found 9/11

$541

Mon 12/12:59 pmDCA - OSL

2 stops16h 51mDelta

Thu 12/116:25 amOSL - DCA

2 stops17h 34mDelta

Deal found 9/10

$544

Tue 10/71:15 pmDCA - OSL

2 stops15h 05mScandinavian Airlines

Tue 10/219:00 amOSL - DCA

2 stops16h 40mScandinavian Airlines

Deal found 9/11

$500

Thu 10/303:20 pmDCA - OSL

2 stops14h 40mMultiple Airlines

Tue 11/46:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/11

$535

Mon 12/111:05 amDCA - OSL

2 stops19h 05mAir Canada

Thu 12/116:15 amOSL - DCA

2 stops19h 30mAir Canada

Deal found 9/11

$535

Sun 10/267:06 pmDCA - OSL

2 stops16h 29mAmerican Airlines

Sun 11/27:20 amOSL - DCA

2 stops18h 33mAmerican Airlines

Deal found 9/11

$545

Wed 12/311:10 amDCA - OSL

2 stops24h 10mScandinavian Airlines

Sun 12/710:00 amOSL - DCA

2 stops19h 58mScandinavian Airlines

Deal found 9/9

$512

Last-minute flights from Reagan-National to Oslo Gardermoen
Discover last-minute flight deals from Reagan-National to Oslo Gardermoen. Data last updated September 11, 2025 and is based on user searches.

Sun 9/141:00 pmDCA - OSL

2 stops15h 50mUnited Airlines

Sat 9/276:35 amOSL - DCA

2 stops20h 28mUnited Airlines

Deal found 9/9

$575

Tue 10/71:15 pmDCA - OSL

2 stops15h 05mScandinavian Airlines

Tue 10/219:00 amOSL - DCA

2 stops16h 40mScandinavian Airlines

Deal found 9/11

$500

Tue 10/146:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Tue 10/2111:05 amOSL - DCA

2 stops17h 02mScandinavian Airlines

Deal found 9/11

$481

Tue 10/143:00 pmDCA - OSL

2 stops16h 05mMultiple Airlines

Tue 10/216:35 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/10

$562

Tue 10/145:00 pmDCA - OSL

2 stops14h 45mDelta

Tue 10/216:00 amOSL - DCA

2 stops18h 00mDelta

Deal found 9/11

$563

Sat 10/182:55 pmDCA - OSL

2 stops17h 25mMultiple Airlines

Sat 11/111:20 amOSL - DCA

2 stops16h 37mMultiple Airlines

Deal found 9/10

$552

Fri 10/241:00 pmDCA - OSL

2 stops17h 15mMultiple Airlines

Tue 10/286:15 amOSL - DCA

2 stops17h 08mMultiple Airlines

Deal found 9/10

$579

Sat 10/255:00 pmDCA - OSL

2 stops15h 05mMultiple Airlines

Sat 11/19:35 amOSL - DCA

2 stops16h 20mMultiple Airlines

Deal found 9/10

$549

Sun 10/267:06 pmDCA - OSL

2 stops16h 29mAmerican Airlines

Sun 11/27:20 amOSL - DCA

2 stops18h 33mAmerican Airlines

Deal found 9/11

$545

Thu 10/303:20 pmDCA - OSL

2 stops14h 40mMultiple Airlines

Tue 11/46:15 amOSL - DCA

2 stops15h 16mMultiple Airlines

Deal found 9/11

$535

One-way flights from Reagan-National to Oslo Gardermoen
Search for one-way flight options from Reagan-National to Oslo Gardermoen. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sat 11/82:00 pmDCA - OSL

2 stops13h 20mScandinavian Airlines

Deal found 9/10

$354

Sat 11/86:00 amDCA - OSL

2 stops24h 10mAir Canada

Deal found 9/10

$356

Wed 11/1911:05 amDCA - OSL

2 stops19h 05mAir Canada

Deal found 9/11

$405

Thu 9/1812:00 pmDCA - OSL

2 stops23h 15mUnited Airlines

Deal found 9/9

$457

Thu 9/186:00 amDCA - OSL

2 stops24h 15mAir Canada

Deal found 9/10

$562

Sat 11/86:59 pmDCA - OSL

3 stops19h 21mMultiple Airlines

Deal found 9/10

$729

Fri 12/122:25 pmDCA - OSL

3 stops17h 50mMultiple Airlines

Deal found 9/10

$811

Thu 9/182:53 pmDCA - OSL

3 stops20h 22mMultiple Airlines

Deal found 9/9

$1,956

Thu 9/186:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Deal found 9/10

$2,133

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 10/14

6:05 am-6:50 am

1 stop18h 45m

Oslo Gardermoen

Tue 10/21

11:05 am-10:07 pm

2 stops17h 02m

$481

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 10/7

1:15 pm-10:20 am

2 stops15h 05m

Oslo Gardermoen

Tue 10/21

9:00 am-7:40 pm

2 stops16h 40m

$500

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 12/3

11:10 am-5:20 pm

2 stops24h 10m

Oslo Gardermoen

Sun 12/7

10:00 am-11:58 pm

2 stops19h 58m

$512

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Sat 11/29

11:05 am-12:10 pm

2 stops19h 05m

Oslo Gardermoen

Sat 12/6

6:15 am-3:31 pm

2 stops15h 16m

$528

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 11/13

4:00 pm-12:10 pm

2 stops14h 10m

Oslo Gardermoen

Mon 11/17

6:15 am-3:31 pm

2 stops15h 16m

$533

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 10/30

3:20 pm-11:00 am

2 stops14h 40m

Oslo Gardermoen

Tue 11/4

6:15 am-3:31 pm

2 stops15h 16m

$535

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 12/1

11:05 am-12:10 pm

2 stops19h 05m

Oslo Gardermoen

Thu 12/11

6:15 am-7:45 pm

2 stops19h 30m

$535

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 1/1

4:30 pm-2:15 pm

2 stops15h 45m

Oslo Gardermoen

Sun 1/11

11:30 am-10:15 pm

2 stops16h 45m

$541

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 12/1

2:59 pm-1:50 pm

2 stops16h 51m

Oslo Gardermoen

Thu 12/11

6:25 am-5:59 pm

2 stops17h 34m

$544

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Sun 10/26

7:06 pm-4:35 pm

2 stops16h 29m

Oslo Gardermoen

Sun 11/2

7:20 am-7:53 pm

2 stops18h 33m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results

Best time to book a flight from Reagan-National to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen 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 Gardermoen Airport

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

When flying from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport, 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.

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport?
Airlines like Scandinavian Airlines and Air Canada fly from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport in about 18h 45m. The time it takes to get you to your destination can typically vary by up to 20m. Airlines will cover a distance of 3877 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from Reagan-National to Oslo Gardermoen that include hotel bookings?
Yes. In addition to deals on Reagan-National to Oslo Gardermoen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Oslo Gardermoen?
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 Gardermoen.
Can I find deals for business class flights from Reagan-National to Oslo Gardermoen?
Yes. Cheapflights offers flight deals from Reagan-National to Oslo Gardermoen 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 Gardermoen Airport?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport (average of $567). Flying from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,005). 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.

See more FAQs

Gardermoen

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$354+ Cheap flights from Reagan-National (DCA) to Oslo Gardermoen (OSL)

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Oslo Gardermoen with Cheapflights

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Cheap flight deals from Reagan-National to Oslo Gardermoen

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Find flight deals from Reagan-National to Oslo Gardermoen

Cheapest flights from Reagan-National to Oslo GardermoenExplore the most affordable flight options available from Reagan-National to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Reagan-National to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport that are best for you.

Best time to book a flight from Reagan-National to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport

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

Related info for your journey

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

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

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

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

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

Traveling to a place near Oslo Gardermoen Airport?

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Cheapest flights from Reagan-National to Oslo Gardermoen
Explore the most affordable flight options available from Reagan-National to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.