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$248+ Cheap flights from Washington, D.C. (WAS) 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSL
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Washington, D.C. to Oslo are usually found in February or January, booked 73 days in advance, depart on a Thursday or Wednesday and return on a Friday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 febrero 20, 2025.

Round-trip from

$390
(FlightHub)

One-way from

$248
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$465
From Washington, D.C. (WAS) to Oslo
Search Deals
One-way flight from Washington, D.C. (WAS) to Oslo
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Highest demand for flights based on searches. 24% potential increase in price ($206 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Washington, D.C. to Oslo

Cheapest flights from Washington, D.C. to Oslo
Explore the most affordable flight options available from Washington, D.C. to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/268:30 pmBWI - OSL
1 stop10h 05mIcelandair
vie. 4/41:50 pmOSL - BWI
1 stop11h 35mIcelandair
Deal found 2/20$390
This Flightnetwork deal was found by Cheapflights users on 2/19. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/168:40 pmIAD - OSL
1 stop9h 55mIcelandair
mar. 4/11:50 pmOSL - IAD
1 stop11h 30mIcelandair
Deal found 2/19$404
This oojo deal was found by Cheapflights users on 2/20. 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.
mar. 3/256:30 pmIAD - OSL
1 stop12h 35mTAP AIR PORTUGAL
lun. 3/3112:50 pmOSL - IAD
1 stop32h 30mTAP AIR PORTUGAL
Deal found 2/20$453
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/267:10 pmBWI - OSL
1 stop21h 55mMultiple Airlines
mar. 4/16:30 pmOSL - BWI
2 stops35h 28mMultiple Airlines
Deal found 2/20$515
This Finnair deal was found by Cheapflights users on 2/19. 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. 3/1210:55 pmIAD - OSL
1 stop18h 45mFinnair
mié. 4/27:40 amOSL - IAD
1 stop18h 30mFinnair
Deal found 2/19$516
This Finnair deal was found by Cheapflights users on 2/18. 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.
mar. 4/16:59 pmDCA - OSL
2 stops18h 46mFinnair
mar. 4/88:35 amOSL - DCA
2 stops19h 54mFinnair
Deal found 2/18$519
This Gotogate deal was found by Cheapflights users on 2/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/169:45 pmIAD - OSL
1 stop15h 30mMultiple Airlines
mar. 4/16:35 amOSL - IAD
2 stops14h 38mMultiple Airlines
Deal found 2/19$520
This Booking.com deal was found by Cheapflights users on 2/19. 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.
dom. 3/166:59 pmDCA - OSL
2 stops13h 46mBritish Airways
mar. 4/17:45 amOSL - DCA
2 stops16h 14mBritish Airways
Deal found 2/19$530
This Travelocity deal was found by Cheapflights users on 2/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/184:53 pmBWI - OSL
2 stops24h 47mBritish Airways
mar. 3/257:25 pmOSL - BWI
1 stop29h 20mBritish Airways
Deal found 2/18$533
This oojo deal was found by Cheapflights users on 2/19. 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.
jue. 3/207:00 pmIAD - OSL
1 stop10h 55mBritish Airways
jue. 4/311:40 amOSL - IAD
1 stop14h 30mBritish Airways
Deal found 2/19$542
This Finnair deal was found by Cheapflights users on 2/20. 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.
jue. 3/279:30 pmBWI - OSL
2 stops14h 05mFinnair
jue. 4/38:45 pmOSL - BWI
2 stops28h 50mFinnair
Deal found 2/20$545
This Booking.com deal was found by Cheapflights users on 2/19. 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.
dom. 3/166:10 pmIAD - TRF
1 stop13h 25mScandinavian Airlines
mar. 4/12:55 pmTRF - IAD
1 stop11h 04mScandinavian Airlines
Deal found 2/19$551

Find flights from Washington, D.C. to Oslo within your budget

Customize your flight search to find flights from Washington, D.C. 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 febrero 20, 2025.

Fly from

Washington, D.C.

Fly to

Oslo

Route

Depart

Return

Price

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

mié. 3/26

8:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

jue. 4/3

1:50 pm-7:25 pm

1 stop11h 35m

$390

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

dom. 3/16

8:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

mar. 4/1

1:50 pm-7:20 pm

1 stop11h 30m

$404

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

mar. 3/25

6:30 pm-12:05 pm

1 stop12h 35m

Oslo Gardermoen

lun. 3/31

12:50 pm-3:20 pm

1 stop32h 30m

$453

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

mié. 3/26

7:10 pm-10:05 pm

1 stop21h 55m

Oslo Gardermoen

mar. 4/1

6:30 pm-11:58 pm

2 stops35h 28m

$515

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

mié. 3/12

10:55 pm-10:40 pm

1 stop18h 45m

Oslo Gardermoen

mié. 4/2

7:40 am-8:10 pm

1 stop18h 30m

$516

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

mar. 4/1

6:59 pm-7:45 pm

2 stops18h 46m

Oslo Gardermoen

mar. 4/8

8:35 am-10:29 pm

2 stops19h 54m

$519

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

dom. 3/16

9:45 pm-6:15 pm

1 stop15h 30m

Oslo Gardermoen

mar. 4/1

6:35 am-3:13 pm

2 stops14h 38m

$520

Washington, D.C.Oslo

DCA - OSL

DCAOSL

Washington, D.C. Reagan-National

dom. 3/16

6:59 pm-1:45 pm

2 stops13h 46m

Oslo Gardermoen

mar. 4/1

7:45 am-5:59 pm

2 stops16h 14m

$530

BaltimoreOslo

BWI - OSL

BWIOSL

Baltimore/Washington

mar. 3/18

4:53 pm-10:40 pm

2 stops24h 47m

Oslo Gardermoen

mar. 3/25

7:25 pm-7:45 pm

1 stop29h 20m

$533

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

jue. 3/20

7:00 pm-10:55 am

1 stop10h 55m

Oslo Gardermoen

jue. 4/3

11:40 am-8:10 pm

1 stop14h 30m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Oslo

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

Get recent, data-driven insights about flights from Washington, D.C. to Oslo including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Oslo. Price data was last updated on February 14, 2025.

The price you pay for your flight from Washington, D.C. to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $567). Flying from Washington, D.C. to Oslo in June is currently the most expensive (average of $1,134). 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 WAS to OSL?

Find hourly flight availability from Washington, D.C. 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 febrero 20, 2025.

It’s typically best to fly out from Washington, D.C. to Oslo in the morning. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

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 febrero 20, 2025.
To help decide which airline to fly from Washington, D.C. to Oslo, see what other customers have to say about Delta, KLM and LOT. 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
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.

LOT
7.6
Good
1,080 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
1,273 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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 Washington, D.C. 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. to Oslo round-trip?

    Currently priced at $390, Icelandair will fly you from Washington, D.C. to Oslo and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and Scandinavian Airlines - these airlines can fly you to your destination from $453 and $515, respectively. Icelandair is currently priced 39% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $346. However, be on the lookout for offers from KLM and Air France, as they are both options that can get you from Washington, D.C. to Oslo for a low price.

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

    The most popular flight routes from Washington, D.C. to Oslo are Washington, D.C. Dulles Intl - Oslo Gardermoen, Baltimore/Washington - Oslo Gardermoen and Washington, D.C. Reagan-National - Oslo Gardermoen.

  • Where are the most common layover locations when flying from Washington, D.C. to Oslo?

    Washington, D.C. to Oslo flights have a layover in Reykjavik most of the time.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Most Reykjavik visitors opt to spend their time experiencing Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Travelers on a layover in Reykjavik can visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool, by traveling 23.2 mi, 23.3 mi, and 24.6 mi, respectively after landing at Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $54 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Washington, D.C. to Oslo flights?

    Of the flights from Washington, D.C. to Oslo that have layovers, the fewest flights stop in Copenhagen.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Oslo?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $567). Flying from Washington, D.C. to Oslo in June is currently the most expensive (average of $1,134). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Washington, D.C. to Oslo

Discover the top 9 airlines that operate flights from Washington, D.C. to Oslo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$396Average$653FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$410Average$649FlexibilityNo cancel feeOn-time77%
DeltaCheapest$501Average$594FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$514Average$773FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$531Average$758FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$535Average$716FlexibilityNo cancel feeOn-time76%
KLMCheapest$542Average$720FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$566Average$757FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$717Average$1,387FlexibilityNo cancel feeOn-time62%
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