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

British Airways, at $509, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Oslo.Alternate airlines to your destination round-trip include American Airlines and Air Canada. These flights start at 24% 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?

$486 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 Delta and Scandinavian Airlines, with prices starting from $487 and $834, respectively.

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 $1,101). 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?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Oslo 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.

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

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.

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

The best pricing can be found in the month of February. Prices to Oslo from Washington, D.C. Reagan-National Airport average $616. You can even find prices in February for less than $616, as users have found deals to Oslo from as low as $194. The month of June appears to be one of the more expensive times to travel to Oslo from Washington, D.C. Reagan-National Airport. Flying in the targeted month can save you up to 46%.

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.

$426+ Flights from Washington, D.C. Reagan-National Airport to Oslo

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Cheap flight deals from Reagan-National to Oslo

Round-trip from	$509 (British Airways)
One-way from	$486 (Justfly.com)
Popular in	July
Cheapest in	December
Average price	$584

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

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

Search Deals

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 April 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 April 16, 2025.

Mon 6/25:49 pmDCA - OSL

2 stops18h 51mBritish Airways

Tue 6/177:45 amOSL - DCA

2 stops21h 22mBritish Airways

Deal found 4/15

$504

Thu 11/65:58 pmDCA - OSL

2 stops14h 17mAmerican Airlines

Tue 11/111:15 pmOSL - DCA

2 stops15h 18mAmerican Airlines

Deal found 4/15

$557

Tue 10/147:45 pmDCA - OSL

2 stops14h 50mFinnair

Wed 10/2211:35 amOSL - DCA

2 stops17h 20mFinnair

Deal found 4/14

$562

Sat 11/296:00 amDCA - OSL

2 stops24h 10mAir Canada

Sat 12/66:20 amOSL - DCA

2 stops20h 40mAir Canada

Deal found 4/16

$564

Tue 5/139:40 amDCA - OSL

2 stops21h 25mMultiple Airlines

Tue 5/206:35 amOSL - DCA

2 stops15h 14mMultiple Airlines

Deal found 4/16

$570

Wed 5/72:59 pmDCA - OSL

2 stops14h 51mDelta

Thu 5/226:00 amOSL - DCA

2 stops18h 07mDelta

Deal found 4/15

$579

Mon 5/121:15 pmDCA - OSL

2 stops15h 35mUnited Airlines

Sat 5/246:35 amOSL - DCA

2 stops19h 05mUnited Airlines

Deal found 4/15

$614

Tue 5/1311:10 amDCA - OSL

1 stop13h 40mScandinavian Airlines

Tue 5/209:55 amOSL - DCA

2 stops18h 50mScandinavian Airlines

Deal found 4/16

$616

Mon 5/54:15 pmDCA - OSL

2 stops14h 20mIcelandair

Mon 5/194:30 pmOSL - DCA

2 stops22h 50mIcelandair

Deal found 4/14

$830

Sun 6/84:56 pmDCA - OSL

2 stops16h 49mAir France

Sat 6/145:35 pmOSL - DCA

2 stops31h 24mAir France

Deal found 4/15

$868

Best flights from Reagan-National to Oslo
Discover carefully curated flight deals from Reagan-National to Oslo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2025.

Tue 7/12:54 pmDCA - OSL

2 stops13h 41mBritish Airways

Wed 7/3011:35 amOSL - DCA

2 stops16h 45mBritish Airways

Deal found 4/15

$509

Tue 5/139:40 amDCA - OSL

2 stops21h 25mMultiple Airlines

Tue 5/206:35 amOSL - DCA

2 stops15h 14mMultiple Airlines

Deal found 4/16

$570

Mon 5/1212:35 pmDCA - OSL

2 stops15h 50mAmerican Airlines

Sat 5/241:10 pmOSL - DCA

2 stops15h 26mAmerican Airlines

Deal found 4/16

$593

Tue 5/64:35 pmDCA - OSL

2 stops19h 30mAir Canada

Mon 6/26:35 amOSL - DCA

2 stops21h 18mAir Canada

Deal found 4/16

$601

Wed 5/71:15 pmDCA - OSL

2 stops15h 35mUnited Airlines

Thu 5/226:35 amOSL - DCA

2 stops15h 14mUnited Airlines

Deal found 4/16

$605

Tue 5/1311:10 amDCA - OSL

1 stop13h 40mScandinavian Airlines

Tue 5/209:55 amOSL - DCA

2 stops18h 50mScandinavian Airlines

Deal found 4/16

$616

Sat 4/2612:30 pmDCA - OSL

2 stops16h 35mDelta

Sun 5/49:20 amOSL - DCA

2 stops17h 14mDelta

Deal found 4/16

$665

Mon 7/148:00 amDCA - OSL

2 stops25h 25mIcelandair

Mon 7/214:30 pmOSL - DCA

2 stops21h 08mIcelandair

Deal found 4/16

$931

Wed 5/712:45 pmDCA - OSL

2 stops17h 15mTAP AIR PORTUGAL

Wed 5/149:55 amOSL - DCA

3 stops28h 05mTAP AIR PORTUGAL

Deal found 4/16

$1,549

Fri 5/165:49 pmDCA - OSL

2 stops16h 46mFinnair

Tue 5/271:10 pmOSL - DCA

2 stops15h 26mFinnair

Deal found 4/16

$3,350

Last-minute flights from Reagan-National to Oslo
Discover last-minute flight deals from Reagan-National to Oslo. Data last updated April 16, 2025 and is based on user searches.

Tue 4/226:00 pmDCA - OSL

2 stops15h 25mIcelandair

Thu 5/291:50 pmOSL - DCA

2 stops24h 10mIcelandair

Deal found 4/15

$998

Sat 4/2612:30 pmDCA - OSL

2 stops16h 35mDelta

Sun 5/42:15 pmOSL - DCA

2 stops14h 30mDelta

Deal found 4/15

$665

Sat 4/266:25 amDCA - OSL

1 stop18h 25mScandinavian Airlines

Sun 5/41:10 pmOSL - DCA

1 stop15h 35mScandinavian Airlines

Deal found 4/16

$1,046

Sat 4/266:25 amDCA - OSL

1 stop18h 25mMultiple Airlines

Sun 5/49:00 amOSL - DCA

2 stops16h 43mMultiple Airlines

Deal found 4/15

$1,757

Mon 5/54:15 pmDCA - OSL

2 stops14h 20mIcelandair

Mon 5/194:30 pmOSL - DCA

2 stops22h 50mIcelandair

Deal found 4/14

$830

Tue 5/64:35 pmDCA - OSL

2 stops19h 30mAir Canada

Wed 6/46:50 amOSL - DCA

2 stops14h 59mAir Canada

Deal found 4/15

$586

Wed 5/712:35 pmDCA - OSL

2 stops16h 05mBritish Airways

Wed 6/47:40 amOSL - DCA

2 stops16h 19mBritish Airways

Deal found 4/15

$572

Wed 5/72:59 pmDCA - OSL

2 stops14h 51mDelta

Thu 5/226:00 amOSL - DCA

2 stops18h 07mDelta

Deal found 4/15

$579

Wed 5/712:45 pmDCA - OSL

2 stops17h 15mTAP AIR PORTUGAL

Wed 5/149:55 amOSL - DCA

3 stops28h 05mTAP AIR PORTUGAL

Deal found 4/16

$1,549

Mon 5/1212:35 pmDCA - OSL

2 stops15h 50mAmerican Airlines

Sat 5/241:10 pmOSL - DCA

2 stops15h 26mAmerican Airlines

Deal found 4/16

$593

Mon 5/121:15 pmDCA - OSL

2 stops15h 35mUnited Airlines

Sat 5/246:35 amOSL - DCA

2 stops19h 05mUnited Airlines

Deal found 4/15

$614

Tue 5/139:40 amDCA - OSL

2 stops21h 25mMultiple Airlines

Tue 5/206:35 amOSL - DCA

2 stops15h 14mMultiple Airlines

Deal found 4/16

$570

One-way flights from Reagan-National to Oslo
Search for one-way flight options from Reagan-National to Oslo. Find affordable one-way fares based on user searches. Data last updated April 16, 2025.

Sat 7/54:30 pmDCA - OSL

2 stops19h 35mAir Canada

Deal found 4/16

$486

Sun 7/63:40 pmDCA - OSL

2 stops14h 10mDelta

Deal found 4/15

$487

Wed 7/96:45 pmDCA - OSL

3 stops18h 20mMultiple Airlines

Deal found 4/15

$732

Thu 8/76:05 amDCA - TRF

2 stops24h 30mScandinavian Airlines

Deal found 4/15

$834

Thu 8/77:45 pmDCA - TRF

3 stops19h 20mFinnair

Deal found 4/15

$1,039

Fri 7/183:00 pmDCA - TRF

3 stops19h 35mMultiple Airlines

Deal found 4/15

$1,388

Sat 6/213:00 pmDCA - OSL

2 stops15h 35mIcelandair

Deal found 4/16

$2,556

Sun 7/611:00 amDCA - OSL

1 stop13h 50mScandinavian Airlines

Deal found 4/15

$2,570

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 6/2

5:49 pm-6:40 pm

2 stops18h 51m

Oslo Gardermoen

Tue 6/17

7:45 am-11:07 pm

2 stops21h 22m

$504

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 8/11

4:30 pm-6:05 pm

2 stops19h 35m

Oslo Gardermoen

Sat 8/23

5:40 am-10:27 pm

2 stops22h 47m

$565

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 5/13

9:40 am-1:05 pm

2 stops21h 25m

Oslo Gardermoen

Tue 5/20

6:35 am-3:49 pm

2 stops15h 14m

$570

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Wed 5/7

2:59 pm-11:50 am

2 stops14h 51m

Oslo Gardermoen

Thu 5/22

6:00 am-6:07 pm

2 stops18h 07m

$579

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 5/12

12:35 pm-10:25 am

2 stops15h 50m

Oslo Gardermoen

Sat 5/24

1:10 pm-10:36 pm

2 stops15h 26m

$593

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 5/12

1:15 pm-10:50 am

2 stops15h 35m

Oslo Gardermoen

Sat 5/24

6:35 am-7:40 pm

2 stops19h 05m

$614

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Tue 5/13

11:10 am-6:50 am

1 stop13h 40m

Oslo Gardermoen

Tue 5/20

9:55 am-10:45 pm

2 stops18h 50m

$616

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Mon 5/5

4:15 pm-12:35 pm

2 stops14h 20m

Oslo Gardermoen

Mon 5/19

4:30 pm-9:20 am

2 stops22h 50m

$830

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Sun 6/8

4:56 pm-3:45 pm

2 stops16h 49m

Oslo Gardermoen

Sat 6/14

5:35 pm-6:59 pm

2 stops31h 24m

$868

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

Thu 8/7

6:00 am-2:45 pm

2 stops26h 45m

$426

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 17 results

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?

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

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

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

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

7,916 reviews

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

7,916 reviews

Delta

8.0

Very good

7,916 reviews

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

1,269 reviews

Delta

8.0

Very good

7,916 reviews

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

8,665 reviews

Delta

8.0

Very good

7,916 reviews

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

1,335 reviews

Delta

8.0

Very good

7,916 reviews

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

7,916 reviews

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

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Oslo round-trip?
British Airways, at $509, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Oslo.Alternate airlines to your destination round-trip include American Airlines and Air Canada. These flights start at 24% 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?
$486 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 Delta and Scandinavian Airlines, with prices starting from $487 and $834, 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 $1,101). 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

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$426+ 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 8/7. 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 with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Reagan-National to Oslo

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Find flight deals from Reagan-National to Oslo

Cheapest flights from Reagan-National to OsloExplore 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 April 16, 2025.

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 April 16, 2025.

Cheapflights Fare Finder

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

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.

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 April 16, 2025.

Rainfall in Oslo by month

Plan your trip to Oslo by taking into account the average rainfall totals by month.

Temperature in Oslo by month

Plan your trip to Oslo by taking into account the average temperature totals by month.

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 April 16, 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.

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?

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

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

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

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

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

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

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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 April 16, 2025.