Dulles Intl

$455+ Cheap flights from Oslo to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — IAD
Jun 20 — Jun 271
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Cheapflights Tip: The best prices from Oslo to Washington, D.C. Dulles Intl are usually found in January or September, booked 80 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap flight deals from Oslo to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) to Dulles Intl (IAD). 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 June 15, 2025.

Round-trip from

$455
(Iberia)

Popular in

July

Cheapest in

January

Average price

$573
From Oslo to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 12% potential increase in price ($73 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in June 2025

Find flight deals from Oslo to Dulles Intl

Cheapest flights from Oslo to Dulles Intl
Explore the most affordable flight options available from Oslo to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:40 amOSL - IAD
1 stop18h 30mAmerican Airlines
Tue 9/235:50 pmIAD - OSL
1 stop23h 35mAmerican Airlines
Deal found 6/13$455
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:20 amOSL - IAD
1 stop12h 15mDelta
Mon 10/135:00 pmIAD - OSL
2 stops14h 45mDelta
Deal found 6/14$456
This British Airways deal was found by Cheapflights users on 6/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:45 amOSL - IAD
1 stop18h 25mBritish Airways
Tue 10/77:25 pmIAD - OSL
1 stop14h 50mBritish Airways
Deal found 6/13$458
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Wed 8/132:55 pmTRF - IAD
1 stop11h 04mScandinavian Airlines
Tue 9/2310:05 pmIAD - TRF
1 stop10h 15mScandinavian Airlines
Deal found 6/13$465
This Mytrip deal was found by Cheapflights users on 6/14. 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.
Wed 10/89:45 amOSL - IAD
2 stops17h 40mAir Canada
Sun 10/125:37 pmIAD - OSL
2 stops36h 38mAir Canada
Deal found 6/14$468
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:35 amOSL - IAD
2 stops34h 39mUnited Airlines
Fri 10/38:20 amIAD - OSL
2 stops21h 55mUnited Airlines
Deal found 6/13$499
This FlightHub deal was found by Cheapflights users on 6/14. 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.
Thu 8/146:35 amOSL - IAD
1 stop14h 40mMultiple Airlines
Tue 10/79:35 amIAD - OSL
2 stops20h 40mMultiple Airlines
Deal found 6/14$512
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 8/146:35 amOSL - IAD
1 stop14h 40mLufthansa
Tue 10/710:20 pmIAD - OSL
2 stops19h 30mLufthansa
Deal found 6/13$541
This SWISS deal was found by Cheapflights users on 6/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/295:40 amOSL - IAD
2 stops44h 20mSWISS
Tue 8/58:45 pmIAD - OSL
1 stop21h 10mSWISS
Deal found 6/14$581
This oojo deal was found by Cheapflights users on 6/14. 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 10/3010:00 amOSL - IAD
1 stop13h 15mScandinavian Airlines
Mon 11/38:30 pmIAD - OSL
1 stop14h 10mScandinavian Airlines
Deal found 6/14$642
This Gotogate deal was found by Cheapflights users on 6/14. 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.
Sun 9/149:00 amTRF - IAD
2 stops19h 10mMultiple Airlines
Mon 9/228:30 pmIAD - TRF
2 stops18h 40mMultiple Airlines
Deal found 6/14$809
This Brussels Airlines deal was found by Cheapflights users on 6/13. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/66:05 pmOSL - IAD
1 stop25h 25mBrussels Airlines
Mon 7/215:35 pmIAD - OSL
1 stop23h 15mBrussels Airlines
Deal found 6/13$816

Cheapflights Fare Finder

Customize your flight search to find flights from Oslo to Dulles Intl 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 June 15, 2025.
Use the filters below to find and compare flights from Oslo to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Oslo

Fly to

Dulles Intl

Route

Depart

Return

Price

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 8/13

7:40 am-8:10 pm

1 stop18h 30m

Washington, D.C. Dulles Intl

Tue 9/23

10:40 pm-11:25 pm

1 stop18h 45m

$455

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 10/2

9:20 am-3:35 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Mon 10/13

5:00 pm-1:45 pm

2 stops14h 45m

$456

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 8/14

7:45 am-8:10 pm

1 stop18h 25m

Washington, D.C. Dulles Intl

Tue 10/7

7:25 pm-4:15 pm

1 stop14h 50m

$458

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 8/13

7:40 am-8:10 pm

1 stop18h 30m

Washington, D.C. Dulles Intl

Tue 9/23

10:40 pm-11:25 pm

1 stop18h 45m

$459

OsloWashington, D.C.

TRF - IAD

TRFIAD

Oslo Sandefjord

Wed 8/13

2:55 pm-7:59 pm

1 stop11h 04m

Washington, D.C. Dulles Intl

Tue 9/23

10:05 pm-2:20 pm

1 stop10h 15m

$465

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Wed 10/8

9:45 am-9:25 pm

2 stops17h 40m

Washington, D.C. Dulles Intl

Sun 10/12

5:37 pm-12:15 pm

2 stops36h 38m

$468

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Thu 7/17

1:00 pm-7:04 am

2 stops24h 04m

Washington, D.C. Dulles Intl

Mon 12/1

11:10 pm-5:45 pm

1 stop12h 35m

$490

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Tue 7/15

6:55 pm-7:25 pm

1 stop30h 30m

Washington, D.C. Dulles Intl

Thu 12/4

11:10 pm-5:45 pm

1 stop12h 35m

$507

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 7/18

5:40 am-3:25 pm

1 stop15h 45m

Washington, D.C. Dulles Intl

Sun 11/2

5:25 pm-12:10 pm

1 stop12h 45m

$574

OsloWashington, D.C.

OSL - IAD

OSLIAD

Oslo Gardermoen

Fri 7/18

6:05 am-4:20 pm

1 stop16h 15m

Washington, D.C. Dulles Intl

Wed 12/3

6:50 pm-4:25 pm

1 stop15h 35m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oslo to Dulles Intl. Price data was last updated on June 13, 2025.

The price you pay for your flight from Oslo to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 80 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 Oslo to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Oslo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Oslo to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 IAD?

Find hourly flight availability from Oslo to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2025.

It’s typically best to fly out from Oslo to Washington, D.C. Dulles Intl Airport in the afternoon. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl 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 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).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated June 15, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Oslo to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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!
8.0
Very good
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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!
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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!
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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!
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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!
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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

Find useful and relevant information for your journey from Oslo to Dulles Intl. 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 Oslo to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Oslo to Washington, D.C. Dulles Intl Airport is Delta. Our recent data shows that you can find tickets from as low as $456 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at $458 and $459 round-trip. These flights start at 14% lower than the current average price 3 months from now.

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

    $465 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Scandinavian Airlines and British Airways, with prices starting from $478 and $487, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Oslo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Oslo to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 5 airlines flying from Oslo to Dulles Intl

Discover the top 5 airlines that operate flights from Oslo to Dulles Intl. 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 June 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$319Average$597FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$354Average$581FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$407Average$525FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$448Average$535FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$459Average$651FlexibilityNo cancel feeOn-time69%

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