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 $1,009). 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 64% 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 $598. You can even find prices in February for less than $598, as users have found deals to Oslo Gardermoen Airport from as low as $192. The month of December 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 32%.

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.

$373+ Flights from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Oslo Gardermoen

Round-trip from	$495 (Mytrip)
One-way from	$373 (Mytrip)
Popular in	August
Cheapest in	December
Average price	$728

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($215 potential increase over avg. RT price).

Search Deals

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

Search Deals

Average for round-trip flights in July 2025

Search Deals

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 July 28, 2025.

Sun 11/211:05 amDCA - OSL

2 stops19h 05mAir Canada

Mon 11/1011:50 amOSL - DCA

2 stops16h 06mAir Canada

Deal found 7/26

$488

Wed 9/106:00 amDCA - OSL

2 stops25h 05mMultiple Airlines

Wed 9/175:40 amOSL - DCA

2 stops22h 11mMultiple Airlines

Deal found 7/27

$495

Wed 9/103:35 pmDCA - OSL

2 stops13h 05mBritish Airways

Wed 9/247:40 amOSL - DCA

2 stops16h 59mBritish Airways

Deal found 7/28

$513

Sun 8/178:00 pmDCA - OSL

2 stops16h 00mUnited Airlines

Mon 8/257:15 amOSL - DCA

2 stops17h 48mUnited Airlines

Deal found 7/26

$529

Tue 10/142:55 pmDCA - OSL

2 stops13h 40mAmerican Airlines

Tue 10/211:10 pmOSL - DCA

2 stops15h 47mAmerican Airlines

Deal found 7/27

$551

Wed 9/311:00 amDCA - OSL

1 stop13h 50mScandinavian Airlines

Wed 9/171:10 pmOSL - DCA

1 stop16h 31mScandinavian Airlines

Deal found 7/27

$566

Fri 8/223:40 pmDCA - OSL

2 stops14h 10mDelta

Wed 9/36:00 amOSL - DCA

2 stops18h 14mDelta

Deal found 7/27

$578

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 July 28, 2025.

Wed 9/106:00 amDCA - OSL

2 stops25h 05mMultiple Airlines

Wed 9/175:40 amOSL - DCA

2 stops22h 11mMultiple Airlines

Deal found 7/27

$495

Wed 9/103:35 pmDCA - OSL

2 stops13h 05mBritish Airways

Wed 9/247:40 amOSL - DCA

2 stops16h 59mBritish Airways

Deal found 7/28

$513

Sun 8/178:00 pmDCA - OSL

2 stops16h 00mUnited Airlines

Mon 8/257:15 amOSL - DCA

2 stops17h 48mUnited Airlines

Deal found 7/26

$529

Mon 9/84:35 pmDCA - OSL

2 stops19h 30mAir Canada

Mon 9/156:45 amOSL - DCA

2 stops15h 06mAir Canada

Deal found 7/26

$550

Tue 10/142:55 pmDCA - OSL

2 stops13h 40mAmerican Airlines

Tue 10/211:10 pmOSL - DCA

2 stops15h 47mAmerican Airlines

Deal found 7/27

$551

Wed 9/311:00 amDCA - OSL

1 stop13h 50mScandinavian Airlines

Wed 9/171:10 pmOSL - DCA

1 stop16h 31mScandinavian Airlines

Deal found 7/27

$566

Fri 8/223:40 pmDCA - OSL

2 stops14h 10mDelta

Wed 9/36:00 amOSL - DCA

2 stops18h 14mDelta

Deal found 7/27

$578

Last-minute flights from Reagan-National to Oslo Gardermoen
Discover last-minute flight deals from Reagan-National to Oslo Gardermoen. Data last updated July 28, 2025 and is based on user searches.

Sun 8/36:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Wed 8/131:10 pmOSL - DCA

1 stop16h 31mScandinavian Airlines

Deal found 7/26

$698

Mon 8/410:35 amDCA - OSL

2 stops16h 10mDelta

Wed 8/139:20 amOSL - DCA

2 stops15h 32mDelta

Deal found 7/26

$634

Mon 8/43:45 pmDCA - OSL

2 stops38h 50mIcelandair

Sun 8/104:30 pmOSL - DCA

2 stops45h 33mIcelandair

Deal found 7/26

$1,330

Wed 8/611:00 amDCA - OSL

2 stops25h 05mUnited Airlines

Sat 8/166:35 amOSL - DCA

2 stops22h 07mUnited Airlines

Deal found 7/25

$652

Wed 8/61:44 pmDCA - OSL

2 stops16h 16mTAP AIR PORTUGAL

Wed 8/138:55 pmOSL - DCA

3 stops29h 08mTAP AIR PORTUGAL

Deal found 7/27

$2,085

Thu 8/712:55 pmDCA - OSL

3 stops26h 25mMultiple Airlines

Thu 8/148:00 amOSL - DCA

3 stops34h 03mMultiple Airlines

Deal found 7/28

$1,200

Sun 8/178:00 pmDCA - OSL

2 stops16h 00mUnited Airlines

Mon 8/257:15 amOSL - DCA

2 stops17h 48mUnited Airlines

Deal found 7/26

$529

Sun 8/177:20 pmDCA - OSL

2 stops15h 15mAmerican Airlines

Sun 8/317:45 amOSL - DCA

2 stops18h 01mAmerican Airlines

Deal found 7/27

$679

Fri 8/227:32 pmDCA - OSL

2 stops20h 58mBritish Airways

Tue 8/267:45 amOSL - DCA

2 stops20h 30mBritish Airways

Deal found 7/27

$542

Fri 8/223:40 pmDCA - OSL

2 stops14h 10mDelta

Wed 9/36:00 amOSL - DCA

2 stops18h 14mDelta

Deal found 7/27

$578

Mon 8/256:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Wed 9/311:05 amOSL - DCA

2 stops17h 10mScandinavian Airlines

Deal found 7/27

$579

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 July 28, 2025.

Wed 8/2711:00 amDCA - OSL

3 stops30h 20mMultiple Airlines

Deal found 7/28

$373

Wed 8/276:30 amDCA - OSL

2 stops22h 10mBritish Airways

Deal found 7/28

$384

Thu 8/711:00 amDCA - OSL

2 stops16h 15mDelta

Deal found 7/27

$408

Sat 8/97:00 pmDCA - OSL

2 stops17h 05mUnited Airlines

Deal found 7/27

$411

Sat 9/279:40 amDCA - OSL

2 stops26h 25mAir Canada

Deal found 7/26

$417

Wed 8/276:05 amDCA - OSL

1 stop18h 45mScandinavian Airlines

Deal found 7/28

$644

Wed 9/31:45 pmDCA - OSL

3 stops23h 30mTAP AIR PORTUGAL

Deal found 7/27

$737

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

Wed 9/10

6:00 am-1:05 pm

2 stops25h 05m

Oslo Gardermoen

Wed 9/17

5:40 am-9:51 pm

2 stops22h 11m

$495

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 9/10

3:35 pm-10:40 am

2 stops13h 05m

Oslo Gardermoen

Wed 9/24

7:40 am-6:39 pm

2 stops16h 59m

$513

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Sun 8/17

8:00 pm-6:00 pm

2 stops16h 00m

Oslo Gardermoen

Mon 8/25

7:15 am-7:03 pm

2 stops17h 48m

$529

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 9/8

4:35 pm-6:05 pm

2 stops19h 30m

Oslo Gardermoen

Mon 9/15

6:45 am-3:51 pm

2 stops15h 06m

$550

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 10/14

2:55 pm-10:35 am

2 stops13h 40m

Oslo Gardermoen

Tue 10/21

1:10 pm-10:57 pm

2 stops15h 47m

$551

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 9/3

11:00 am-6:50 am

1 stop13h 50m

Oslo Gardermoen

Wed 9/17

1:10 pm-11:41 pm

1 stop16h 31m

$566

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Fri 8/22

3:40 pm-11:50 am

2 stops14h 10m

Oslo Gardermoen

Wed 9/3

6:00 am-6:14 pm

2 stops18h 14m

$578

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 8/27

11:00 am-11:20 pm

3 stops30h 20m

$373

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 8/27

6:30 am-10:40 am

2 stops22h 10m

$384

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 8/7

11:00 am-9:15 am

2 stops16h 15m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 14 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.

Reviews of airlines servicing Oslo Gardermoen

Peruse reviews from past customers who have flown with Delta, United Airlines, and Scandinavian Airlines from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,975 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,892 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,447 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,813 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport round-trip?
Currently priced at $513, British Airways will fly you from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from $529 and $550, respectively. British Airways is 20% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Oslo Gardermoen Airport are British Airways ($384), Delta ($408), and United Airlines ($411).
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 $1,009). 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

Browse thousands of different options on Cheapflights for your next trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$373+ 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 8/27. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Oslo Gardermoen

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 July 28, 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 July 28, 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?

Find hourly flight availability from Reagan-National to Oslo Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

Reviews of airlines servicing Oslo Gardermoen

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.

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

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

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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Oslo Gardermoen

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

100% Free

Book with Flexibility

Travel Smart

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 July 28, 2025.