How long is the flight from Oslo Gardermoen Airport to Washington, D.C.?

Airlines like British Airways, Finnair, and Icelandair fly from Oslo Gardermoen Airport to Washington, D.C. in about 11h 30m. The time it takes to get you to your destination can typically vary by up to 5h 16m. There are 3885 mi between Oslo Gardermoen Airport and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Our cheapest airline available from Oslo Gardermoen Airport to Washington, D.C. is British Airways. Our recent data shows that you can find tickets from as low as $406 on this airline. Additional options worth looking into are Scandinavian Airlines and Lufthansa, starting at $438 and $448 round-trip. Users have found that British Airways is 22% cheaper than the other options available to this destination.

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

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $291. British Airways flights start at $300 while deals on Finnair start at $351 one-way.

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

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Oslo Gardermoen Airport to Washington, D.C.?

While some choose either Oslo Gardermoen - Washington, D.C. Reagan-National or Oslo Gardermoen - Baltimore/Washington, Oslo Gardermoen - Washington, D.C. Dulles Intl is the most popular route from Oslo Gardermoen Airport to Washington, D.C..

What are the most popular airlines that fly from Oslo Gardermoen Airport to Washington, D.C.?

Consider British Airways, Lufthansa or Scandinavian Airlines when booking your flight. These represent the most popular airlines when flying from Oslo Gardermoen Airport to Washington, D.C..

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

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 30% on your flight compared to booking on days when demand is much higher.

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

The best pricing can be found in the month of February. Prices to Washington, D.C. from Oslo Gardermoen Airport average $523. You can even find prices in February for less than $523, as users have found deals to Washington, D.C. from as low as $361. The month of July appears to be one of the more expensive times to travel to Washington, D.C. from Oslo Gardermoen Airport. Flying in the targeted month can save you up to 25%.

Can I find deals for flights from Oslo Gardermoen to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Oslo Gardermoen to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Oslo Gardermoen to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Washington, D.C..

Can I find deals for business class flights from Oslo Gardermoen to Washington, D.C.?

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

$291+ Cheap Flights from Oslo Gardermoen Airport to Washington, D.C.

Q: How much does it cost to fly round-trip from Oslo Gardermoen Airport to Washington, D.C.?

Airfare is below average for this route at the moment. Oslo Gardermoen Airport to Washington, D.C. flights typically cost between $440 and $588 in October. The cheapest round-trip price found within the last 3 days was $437 on Multiple Airlines (Oct 24-Nov 6).

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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

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Cheapflights Tip: The best prices from Oslo Gardermoen to Washington, D.C. are usually found in February or November, booked 42 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Oslo Gardermoen to Washington, D.C.

Round-trip from	$437 (Ticket)
One-way from	$291 (American Airlines)
Popular in	July
Cheapest in	February
Average price	$485

From Oslo Gardermoen to Washington, D.C. (WAS)

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One-way flight from Oslo Gardermoen to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($51 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 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 Oslo Gardermoen to Washington, D.C.

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

Fri 10/247:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Thu 11/69:25 pmIAD - OSL

1 stop12h 55mMultiple Airlines

Deal found 9/10

$437

Sun 10/197:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Mon 11/36:50 pmIAD - OSL

1 stop15h 30mMultiple Airlines

Deal found 9/10

$439

Sat 10/252:15 pmOSL - IAD

1 stop32h 50mKLM

Mon 11/106:05 pmIAD - OSL

1 stop22h 25mKLM

Deal found 9/11

$442

Thu 9/187:15 pmOSL - IAD

1 stop26h 20mKLM

Wed 10/15:25 pmIAD - OSL

1 stop11h 40mKLM

Deal found 9/11

$444

Sun 10/261:05 pmOSL - IAD

1 stop11h 25mIcelandair

Sun 11/27:40 pmIAD - OSL

1 stop9h 55mIcelandair

Deal found 9/11

$445

Sat 10/258:20 amOSL - DCA

2 stops16h 46mBritish Airways

Mon 11/101:44 pmDCA - OSL

2 stops15h 11mBritish Airways

Deal found 9/11

$454

Wed 10/296:55 amOSL - IAD

2 stops16h 59mBritish Airways

Mon 11/39:45 pmIAD - OSL

1 stop14h 55mBritish Airways

Deal found 9/10

$456

Sat 10/258:20 amOSL - IAD

2 stops17h 25mBritish Airways

Mon 11/109:45 pmIAD - OSL

1 stop18h 55mBritish Airways

Deal found 9/11

$462

Fri 10/247:50 amOSL - BWI

1 stop17h 55mAmerican Airlines

Thu 11/61:53 pmBWI - OSL

2 stops18h 22mAmerican Airlines

Deal found 9/10

$464

Wed 10/2911:50 amOSL - IAD

1 stop33h 45mAmerican Airlines

Mon 11/36:20 pmIAD - OSL

1 stop22h 20mAmerican Airlines

Deal found 9/11

$465

Wed 10/2912:25 pmOSL - DCA

2 stops15h 32mFinnair

Mon 11/35:45 pmDCA - OSL

2 stops20h 25mFinnair

Deal found 9/10

$465

Thu 10/27:45 amOSL - IAD

2 stops32h 22mAmerican Airlines

Mon 10/137:25 pmIAD - OSL

1 stop22h 05mAmerican Airlines

Deal found 9/11

$467

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

Fri 10/247:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Thu 11/69:25 pmIAD - OSL

1 stop12h 55mMultiple Airlines

Deal found 9/10

$437

Sat 10/258:20 amOSL - DCA

2 stops16h 46mBritish Airways

Mon 11/101:44 pmDCA - OSL

2 stops15h 11mBritish Airways

Deal found 9/11

$454

Wed 10/2912:25 pmOSL - DCA

2 stops15h 32mFinnair

Mon 11/35:45 pmDCA - OSL

2 stops20h 25mFinnair

Deal found 9/10

$465

Sat 10/251:50 pmOSL - IAD

1 stop11h 30mIcelandair

Sat 11/18:40 pmIAD - OSL

1 stop9h 55mIcelandair

Deal found 9/10

$467

Thu 10/27:45 amOSL - DCA

2 stops21h 22mAmerican Airlines

Mon 10/135:30 pmDCA - OSL

2 stops19h 10mAmerican Airlines

Deal found 9/10

$468

Thu 10/26:30 amOSL - IAD

1 stop15h 05mDelta

Mon 10/139:20 pmIAD - OSL

1 stop13h 20mDelta

Deal found 9/9

$469

Sun 10/269:35 amOSL - DCA

2 stops19h 24mUnited Airlines

Sun 11/25:00 amDCA - OSL

2 stops25h 05mUnited Airlines

Deal found 9/11

$505

Thu 11/271:45 pmOSL - DCA

2 stops25h 10mAir Canada

Sun 11/306:59 amDCA - OSL

2 stops24h 06mAir Canada

Deal found 9/9

$511

Sun 10/197:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Mon 11/36:50 pmIAD - OSL

1 stop15h 30mMultiple Airlines

Deal found 9/10

$439

Thu 10/231:50 pmOSL - IAD

1 stop11h 30mIcelandair

Wed 11/57:40 pmIAD - OSL

1 stop9h 55mIcelandair

Deal found 9/11

$467

Fri 10/247:50 amOSL - DCA

2 stops20h 25mAmerican Airlines

Thu 11/61:44 pmDCA - OSL

2 stops18h 31mAmerican Airlines

Deal found 9/10

$469

Wed 10/2912:40 pmOSL - DCA

2 stops16h 12mDelta

Mon 11/33:00 pmDCA - OSL

2 stops16h 50mDelta

Deal found 9/11

$471

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

Thu 9/187:15 pmOSL - IAD

1 stop26h 20mKLM

Wed 10/15:25 pmIAD - OSL

1 stop11h 40mKLM

Deal found 9/11

$444

Thu 10/27:45 amOSL - IAD

2 stops32h 22mAmerican Airlines

Mon 10/137:25 pmIAD - OSL

1 stop22h 05mAmerican Airlines

Deal found 9/11

$467

Sun 10/197:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Mon 11/36:50 pmIAD - OSL

1 stop15h 30mMultiple Airlines

Deal found 9/10

$439

Fri 10/247:15 pmOSL - IAD

1 stop26h 20mMultiple Airlines

Thu 11/69:25 pmIAD - OSL

1 stop12h 55mMultiple Airlines

Deal found 9/10

$437

Fri 10/247:50 amOSL - BWI

1 stop17h 55mAmerican Airlines

Thu 11/61:53 pmBWI - OSL

2 stops18h 22mAmerican Airlines

Deal found 9/10

$464

Sat 10/252:15 pmOSL - IAD

1 stop32h 50mKLM

Mon 11/106:05 pmIAD - OSL

1 stop22h 25mKLM

Deal found 9/11

$442

Sat 10/258:20 amOSL - DCA

2 stops16h 46mBritish Airways

Mon 11/101:44 pmDCA - OSL

2 stops15h 11mBritish Airways

Deal found 9/11

$454

Sat 10/258:20 amOSL - IAD

2 stops17h 25mBritish Airways

Mon 11/109:45 pmIAD - OSL

1 stop18h 55mBritish Airways

Deal found 9/11

$462

Sun 10/261:05 pmOSL - IAD

1 stop11h 25mIcelandair

Sun 11/27:40 pmIAD - OSL

1 stop9h 55mIcelandair

Deal found 9/11

$445

Wed 10/296:55 amOSL - IAD

2 stops16h 59mBritish Airways

Mon 11/39:45 pmIAD - OSL

1 stop14h 55mBritish Airways

Deal found 9/10

$456

Wed 10/2911:50 amOSL - IAD

1 stop33h 45mAmerican Airlines

Mon 11/36:20 pmIAD - OSL

1 stop22h 20mAmerican Airlines

Deal found 9/11

$465

Wed 10/2912:25 pmOSL - DCA

2 stops15h 32mFinnair

Mon 11/35:45 pmDCA - OSL

2 stops20h 25mFinnair

Deal found 9/10

$465

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

Fri 2/137:10 amOSL - IAD

1 stop18h 45mAmerican Airlines

Deal found 9/11

$291

Fri 2/137:10 amOSL - BWI

1 stop17h 35mAmerican Airlines

Deal found 9/11

$291

Sat 12/277:10 amOSL - BWI

2 stops18h 19mAmerican Airlines

Deal found 9/10

$297

Fri 2/137:10 amOSL - BWI

2 stops18h 14mBritish Airways

Deal found 9/11

$300

Fri 2/137:10 amOSL - DCA

2 stops18h 50mAmerican Airlines

Deal found 9/11

$301

Fri 12/267:10 amOSL - BWI

1 stop17h 35mBritish Airways

Deal found 9/10

$342

Wed 10/159:10 pmOSL - IAD

2 stops24h 10mMultiple Airlines

Deal found 9/10

$345

Sat 12/277:10 amOSL - DCA

2 stops17h 47mMultiple Airlines

Deal found 9/10

$345

Fri 2/135:20 pmOSL - IAD

2 stops32h 35mFinnair

Deal found 9/11

$351

Mon 10/612:50 pmOSL - IAD

1 stop14h 00mTAP AIR PORTUGAL

Deal found 9/10

$368

Sat 12/277:10 amOSL - IAD

1 stop14h 25mMultiple Airlines

Deal found 9/10

$405

Sun 9/216:50 pmOSL - IAD

1 stop26h 30mTAP AIR PORTUGAL

Deal found 9/11

$406

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 10/24

7:15 pm-3:35 pm

1 stop26h 20m

Washington, D.C. Dulles Intl

Thu 11/6

9:25 pm-4:20 pm

1 stop12h 55m

$437

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sun 10/19

7:15 pm-3:35 pm

1 stop26h 20m

Washington, D.C. Dulles Intl

Mon 11/3

6:50 pm-4:20 pm

1 stop15h 30m

$439

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Sat 10/25

8:20 am-7:06 pm

2 stops16h 46m

Washington, D.C. Reagan-National

Mon 11/10

1:44 pm-10:55 am

2 stops15h 11m

$454

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Wed 10/29

12:25 pm-10:57 pm

2 stops15h 32m

Washington, D.C. Reagan-National

Mon 11/3

5:45 pm-8:10 pm

2 stops20h 25m

$465

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Sat 10/25

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Sat 11/1

8:40 pm-11:35 am

1 stop9h 55m

$467

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 10/23

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 11/5

7:40 pm-11:35 am

1 stop9h 55m

$467

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Thu 10/2

7:45 am-11:07 pm

2 stops21h 22m

Washington, D.C. Reagan-National

Mon 10/13

5:30 pm-6:40 pm

2 stops19h 10m

$468

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 10/2

6:30 am-3:35 pm

1 stop15h 05m

Washington, D.C. Dulles Intl

Mon 10/13

9:20 pm-4:40 pm

1 stop13h 20m

$469

OsloWashington, D.C.

OSL - DCA

OSLDCA

Oslo Gardermoen

Fri 10/24

7:50 am-10:15 pm

2 stops20h 25m

Washington, D.C. Reagan-National

Thu 11/6

1:44 pm-2:15 pm

2 stops18h 31m

$469

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 10/29

9:25 am-5:05 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Mon 11/3

6:50 pm-4:20 pm

1 stop15h 30m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 59 results

...

Best time to book a flight from Oslo Gardermoen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Oslo Gardermoen 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 Oslo Gardermoen Airport to Washington, D.C.

How far ahead should I book a flight from Oslo Gardermoen Airport to Washington, D.C.?

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $292). Flying from Oslo Gardermoen Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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 time of day to fly from OSL to WAS?

It’s optimal to fly from Oslo Gardermoen Airport to Washington, D.C. in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Oslo Gardermoen Airport to Washington, D.C.?

What’s the top layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

Frankfurt am Main (FRA) – chosen by Cheapflights users on 36% of 1-stop itineraries from Oslo Gardermoen Airport to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

London (LHR) is the most affordable 1-stop option, with an average round-trip price of $506.

What’s the fastest layover option from Oslo Gardermoen Airport to Washington, D.C.?

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 12h 00m.

Which airport typically offers the quickest layover for flights from Oslo Gardermoen Airport to Washington, D.C.?

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 31m.

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Oslo Gardermoen Airport to Washington, D.C., such as KLM, Scandinavian Airlines, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Scandinavian Airlines

7.4

Good

1,484 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Icelandair

7.0

Good

546 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Lufthansa

6.8

Okay

7,409 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

British Airways

6.7

Okay

7,361 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

How long is the flight from Oslo Gardermoen Airport to Washington, D.C.?
Airlines like British Airways, Finnair, and Icelandair fly from Oslo Gardermoen Airport to Washington, D.C. in about 11h 30m. The time it takes to get you to your destination can typically vary by up to 5h 16m. There are 3885 mi between Oslo Gardermoen Airport and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Oslo Gardermoen Airport to Washington, D.C. round-trip?
Our cheapest airline available from Oslo Gardermoen Airport to Washington, D.C. is British Airways. Our recent data shows that you can find tickets from as low as $406 on this airline. Additional options worth looking into are Scandinavian Airlines and Lufthansa, starting at $438 and $448 round-trip. Users have found that British Airways is 22% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Oslo Gardermoen Airport to Washington, D.C. one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $291. British Airways flights start at $300 while deals on Finnair start at $351 one-way.
What are the most popular routes from Oslo Gardermoen Airport to Washington, D.C.?
While some choose either Oslo Gardermoen - Washington, D.C. Reagan-National or Oslo Gardermoen - Baltimore/Washington, Oslo Gardermoen - Washington, D.C. Dulles Intl is the most popular route from Oslo Gardermoen Airport to Washington, D.C..
Can I find deals for flights from Oslo Gardermoen to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Oslo Gardermoen to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oslo Gardermoen to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Washington, D.C..
Can I find deals for business class flights from Oslo Gardermoen to Washington, D.C.?
Yes. Cheapflights offers flight deals from Oslo Gardermoen to Washington, D.C. 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 Oslo Gardermoen Airport to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Washington, D.C. (average of $292). Flying from Oslo Gardermoen Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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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Top 4 airlines flying from Oslo Gardermoen to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$406	Average$525	FlexibilityNo cancel fee	On-time70%
Scandinavian Airlines	Cheapest$438	Average$706	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$448	Average$535	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$483	Average$543	FlexibilityNo cancel fee	On-time69%

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$291+ Cheap flights from Oslo Gardermoen (OSL) to Washington, D.C. (WAS)

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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oslo Gardermoen to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Oslo Gardermoen to Washington, D.C. are usually found in February or November, booked 42 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Oslo Gardermoen to Washington, D.C.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Oslo Gardermoen to Washington, D.C.

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

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Best time to book a flight from Oslo Gardermoen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Oslo Gardermoen with our price prediction graph.

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

How far ahead should I book a flight from Oslo Gardermoen Airport to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Oslo Gardermoen to Washington, D.C.. Price data was last updated on August 29, 2025.

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

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

Find hourly flight availability from Oslo Gardermoen to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

How much does it cost to fly round-trip from Oslo Gardermoen Airport to Washington, D.C.?

What’s the top layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

Share of 1-stop round-trip flights from Oslo Gardermoen Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Oslo Gardermoen Airport to Washington, D.C.?

Average round-trip fare for 1-stop flights from Oslo Gardermoen Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Oslo Gardermoen Airport to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Oslo Gardermoen Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Oslo Gardermoen Airport to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Oslo Gardermoen Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Oslo Gardermoen Airport to Washington, D.C., such as KLM, Scandinavian Airlines, and Icelandair. 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 Oslo Gardermoen to Washington, D.C.. 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 Oslo Gardermoen Airport to Washington, D.C.?

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

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

What are the most popular routes from Oslo Gardermoen Airport to Washington, D.C.?

Can I find deals for flights from Oslo Gardermoen to Washington, D.C. that include hotel bookings?

How can I find direct flights from Oslo Gardermoen to Washington, D.C.?

Can I find deals for business class flights from Oslo Gardermoen to Washington, D.C.?

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

Traveling to a place near Washington, D.C.?

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Alternative routes for Oslo Gardermoen to Washington, D.C.

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Top 4 airlines flying from Oslo Gardermoen to Washington, D.C.

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