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Oslo

$160+ Cheap flights from Dulles Intl (IAD) 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Dulles Intl to Oslo

Cheapest flights from Dulles Intl to Oslo
Explore the most affordable flight options available from Dulles Intl to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Ticket deal was found by Cheapflights users on 1/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:40 pm
IAD
-
OSL
1 stop18h 55m
Icelandair
Sun 3/19:30 pm
OSL
-
IAD
1 stop27h 00m
Icelandair
Deal found 1/27$366
This oojo deal was found by Cheapflights users on 1/27. 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.
Thu 4/1610:35 pm
IAD
-
OSL
1 stop13h 15m
TAP AIR PORTUGAL
Thu 4/2312:50 pm
OSL
-
IAD
1 stop13h 45m
TAP AIR PORTUGAL
Deal found 1/27$387
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:30 pm
IAD
-
OSL
1 stop10h 05m
Icelandair
Sun 4/261:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Deal found 1/28$391
This oojo deal was found by Cheapflights users on 1/26. 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.
Tue 2/245:30 pm
IAD
-
OSL
1 stop12h 40m
TAP AIR PORTUGAL
Tue 3/36:45 pm
OSL
-
IAD
1 stop32h 15m
TAP AIR PORTUGAL
Deal found 1/26$393
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 1/2810:30 pm
IAD
-
OSL
1 stop13h 35m
TAP AIR PORTUGAL
Wed 2/41:00 pm
OSL
-
IAD
1 stop32h 15m
TAP AIR PORTUGAL
Deal found 1/27$394
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/98:40 pm
IAD
-
OSL
1 stop9h 55m
Icelandair
Tue 3/171:10 pm
OSL
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/27$396
This oojo deal was found by Cheapflights users on 1/28. 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.
Wed 3/47:40 pm
IAD
-
OSL
1 stop9h 55m
Icelandair
Wed 3/111:10 pm
OSL
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/28$397
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 4/158:30 pm
IAD
-
OSL
1 stop12h 55m
Icelandair
Tue 4/214:30 pm
OSL
-
IAD
1 stop32h 50m
Icelandair
Deal found 1/27$399
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 4/228:30 pm
IAD
-
OSL
1 stop12h 55m
Icelandair
Thu 4/304:30 pm
OSL
-
IAD
1 stop32h 50m
Icelandair
Deal found 1/27$406
This oojo deal was found by Cheapflights users on 1/26. 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.
Thu 4/308:30 pm
IAD
-
OSL
1 stop10h 05m
Icelandair
Wed 5/61:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Deal found 1/26$412
This oojo deal was found by Cheapflights users on 1/27. 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.
Fri 5/18:30 pm
IAD
-
OSL
1 stop10h 05m
Icelandair
Thu 5/71:50 pm
OSL
-
IAD
1 stop11h 30m
Icelandair
Deal found 1/27$413
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:20 pm
IAD
-
TRF
1 stop12h 10m
Scandinavian Airlines
Wed 5/66:00 am
TRF
-
IAD
1 stop16h 50m
Scandinavian Airlines
Deal found 1/28$556

Find flight deals from Dulles Intl to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 January 29, 2026.

Round-trip from

$366
(Ticket)

One-way from

$160
(Mytrip)

Popular in

June

Cheapest in

April

Average price

$514
From Washington, D.C. Dulles Intl to Oslo
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Oslo
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Oslo that are best for you.

Fly from

Dulles Intl

Fly to

Oslo

Route

Depart

Return

Price

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 2/23

7:40 pm-11:35 am

1 stop9h 55m

Oslo Gardermoen

Fri 2/27

1:10 pm-6:30 pm

1 stop11h 20m

$451

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 2/9

9:45 am-12:10 pm

2 stops20h 25m

Oslo Gardermoen

Thu 2/12

4:35 pm-3:50 pm

1 stop29h 15m

$514

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 2/23

5:40 pm-11:00 am

1 stop11h 20m

Oslo Gardermoen

Fri 2/27

6:15 am-3:50 pm

1 stop15h 35m

$515

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 3/1

6:50 pm-2:45 pm

1 stop13h 55m

Oslo Gardermoen

Fri 3/13

4:25 pm-5:05 pm

1 stop29h 40m

$515

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 2/8

6:50 pm-8:50 pm

1 stop20h 00m

Oslo Gardermoen

Thu 2/12

7:45 am-4:05 pm

1 stop14h 20m

$515

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Wed 4/22

8:22 am-10:05 pm

2 stops31h 43m

Oslo Gardermoen

Thu 4/30

7:05 am-4:05 pm

1 stop15h 00m

$516

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Tue 2/24

5:40 pm-11:00 am

1 stop11h 20m

Oslo Gardermoen

Tue 3/3

6:15 am-8:54 pm

2 stops20h 39m

$518

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 2/23

7:52 pm-4:20 pm

2 stops14h 28m

Oslo Gardermoen

Thu 3/5

6:30 am-4:05 pm

1 stop15h 35m

$519

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Mon 4/20

6:50 pm-6:45 pm

2 stops17h 55m

Oslo Gardermoen

Mon 4/27

6:30 am-5:57 pm

2 stops17h 27m

$521

Washington, D.C.Oslo

IAD - OSL

IADOSL

Washington, D.C. Dulles Intl

Sun 2/8

8:20 am-5:10 pm

2 stops26h 50m

Oslo Gardermoen

Thu 2/12

1:45 pm-8:15 pm

1 stop12h 30m

$522

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 33 results
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Best time to book a flight from Dulles Intl to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Dulles Intl 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. Dulles Intl Airport to Oslo

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Oslo. Price data was last updated on January 23, 2026.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Oslo. 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 Washington, D.C. Dulles Intl Airport to Oslo?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oslo (average of $380). Flying from Washington, D.C. Dulles Intl Airport to Oslo in July is currently the most expensive (average of $555). 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.

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

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 January 29, 2026.
Read reviews from past customers who have flown United Airlines, Scandinavian Airlines, and Icelandair from Washington, D.C. Dulles Intl Airport to Oslo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Scandinavian Airlines
7.3
Good
1,674 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
606 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,754 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,705 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Oslo. 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. Dulles Intl Airport to Oslo?

    Icelandair and Scandinavian Airlines can get you from Washington, D.C. Dulles Intl Airport to Oslo in just under 9h 55m. Your travel time can differ by up to 2h 15m. The distance from Washington, D.C. Dulles Intl Airport to Oslo is about 3885 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Oslo is Icelandair. Our recent data shows that you can find tickets from as low as $389 on this airline. Additional options worth looking into are Scandinavian Airlines and British Airways, starting at $400 and $512 round-trip. These flights start at 33% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $159. Icelandair flights start at $207 while deals on Lufthansa start at $378 one-way.

  • Can I find deals for flights from Dulles Intl to Oslo that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Oslo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Oslo?

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

  • Can I find deals for business class flights from Dulles Intl to Oslo?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Oslo?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oslo (average of $380). Flying from Washington, D.C. Dulles Intl Airport to Oslo in July is currently the most expensive (average of $555). 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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Alternative routes for Dulles Intl to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Dulles Intl to Oslo

Discover the top 6 airlines that operate flights from Dulles Intl 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$389Average$584FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$656FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$512Average$714FlexibilityNo cancel feeOn-time70%
KLMCheapest$513Average$615FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$529Average$672FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$531Average$739FlexibilityNo cancel feeOn-time69%

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