HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oulu

$755+ Cheap flights from Dulles Intl (IAD) to Oulu (OUL)

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.
IAD — OUL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Oulu with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Dulles Intl to Oulu

Cheapest flights from Dulles Intl to Oulu
Explore the most affordable flight options available from Dulles Intl to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This KAYAK deal was found by Cheapflights users on 4/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1310:20 pmIAD - OUL
2 stops33h 05mLufthansa
Wed 12/175:05 pmOUL - IAD
1 stop34h 00mLufthansa
Deal found 4/15$755
This British Airways deal was found by Cheapflights users on 4/15. 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.
Wed 8/1310:40 pmIAD - OUL
2 stops19h 20mBritish Airways
Wed 12/172:15 pmOUL - IAD
2 stops32h 20mBritish Airways
Deal found 4/15$840
This American Airlines deal was found by Cheapflights users on 4/15. 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 8/135:20 pmIAD - OUL
2 stops17h 35mMultiple Airlines
Sat 12/205:35 amOUL - IAD
3 stops21h 10mMultiple Airlines
Deal found 4/15$3,885

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Oulu 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 April 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Oulu that are best for you.

Fly from

Dulles Intl

Fly to

Oulu

Route

Depart

Return

Price

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Wed 8/13

10:20 pm-2:25 pm

2 stops33h 05m

Oulu

Wed 12/17

5:05 pm-8:05 pm

1 stop34h 00m

$755

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Wed 8/13

10:40 pm-1:00 am

2 stops19h 20m

Oulu

Wed 12/17

2:15 pm-3:35 pm

2 stops32h 20m

$840

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Wed 8/13

5:20 pm-5:55 pm

2 stops17h 35m

Oulu

Sat 12/20

5:35 am-7:45 pm

3 stops21h 10m

$3,885

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Best time to book a flight from Dulles Intl to Oulu

Have a flexible travel schedule? Discover the best time to fly to Oulu 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 Oulu

Rainfall in Oulu by month

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

In terms of precipitation, rainfall in Oulu ranges from 0.4 - 2.4 inches per month. August is typically the wettest month, when rainfall can reach 2.4 in. April is typically the driest time to visit Oulu when rainfall is around 0.4 in.

Temperature in Oulu by month

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

If weather is an important factor for your trip to Oulu, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Oulu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Oulu from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Oulu, you will be flying into Oulu. Oulu (OUL) is just 6.5 mi from the center of the city. Oulu is the only Oulu airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Oulu from Washington, D.C. Dulles Intl on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Oulu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.