How long does it take to fly to Oulu?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Oulu you fly into. For example, flying from Baltimore to Oulu takes 20h 25m on average. On the other hand, flying from Washington, D.C. to Oulu takes 21h 56m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Washington, D.C. to Oulu?

British Airways and Finnair are the most popular carriers operating from Washington, D.C. to Oulu

When did momondo last update prices for flights from Washington, D.C. to Oulu Airport?

Prices for flights from Washington, D.C. to Oulu Airport were last updated today.

How many operators does momondo search for flights from Washington, D.C. to Oulu Airport?

The number of operators available for flights from Washington, D.C. to Oulu Airport is 1 as of March 2026.

How old do you have to be to fly from Washington, D.C. to Oulu Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Oulu Airport.

What documentation or ID do you need to fly to Oulu Airport?

The travel and health documents required for your trip to Oulu Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oulu Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$648 Cheap Flights from Washington, D.C. to Oulu in 2026

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Find the cheapest flights from Washington, D.C. to Oulu

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:45 pm - 9:35 pm

IAD

OUL

40h 50m

2 stops

5:35 pm - 7:50 pm

OUL

IAD

33h 15m

2 stops

$1,234Turkish Airlines

Sun, Jun 14 - Wed, Jun 17

10:25 pm - 9:35 pm

IAD

OUL

16h 10m

3 stops

5:40 am - 3:45 pm

OUL

IAD

17h 05m

2 stops

$4,160Multiple Airlines

Sun, Jun 14 - Wed, Jun 17

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Sun 6/14

9:45 pm-9:35 pm

2 stops40h 50m

Oulu

Wed 6/17

5:35 pm-7:50 pm

2 stops33h 15m

$1,234

Quickest round-trip

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Sun 6/14

10:25 pm-9:35 pm

3 stops16h 10m

Oulu

Wed 6/17

5:40 am-3:45 pm

2 stops17h 05m

$4,160

Cheapest one-way

Washington, D.C.Oulu

IAD - OUL

IADOUL

Washington, D.C. Dulles Intl

Tue 5/5

5:40 pm-1:00 am

2 stops24h 20m

$648

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Tue 5/5

9:30 pm-10:10 am

2 stops29h 40m

$667

Quickest one-way

Washington, D.C.Oulu

DCA - OUL

DCAOUL

Washington, D.C. Reagan-National

Tue 5/5

5:31 pm-9:35 pm

2 stops21h 04m

$676

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Oulu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

Can stopping save me money on Washington, D.C. to Oulu flights?

You could potentially save up to 38% on your flight if you consider stops on a Washington, D.C. to Oulu flight.

When to book flights from Washington, D.C. to Oulu

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Oulu according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Oulu (WAS to OUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Oulu

Fastest flight time	18h 37m
Direct flights	None

The fastest flight from Washington, D.C. to Oulu takes 18h 37m

There are no direct flights from Washington, D.C. to Oulu. There are no popular flight routes from Washington, D.C. to Oulu.

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How far is Washington, D.C. to Oulu by plane?
Oulu is 4151.3 mi away from Washington, D.C.. By plane, this route typically takes 18h 37m.
When did momondo last update prices for flights from Washington, D.C. to Oulu Airport?
Prices for flights from Washington, D.C. to Oulu Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Oulu Airport?
The number of operators available for flights from Washington, D.C. to Oulu Airport is 1 as of March 2026.
How old do you have to be to fly from Washington, D.C. to Oulu Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Oulu Airport.
What documentation or ID do you need to fly to Oulu Airport?
The travel and health documents required for your trip to Oulu Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oulu Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Washington, D.C. to Oulu

Compare and see reviews for airlines that fly from Washington, D.C. to Oulu with momondo

Airline	Rating	Free Cancellation	Price
Finnair	PriceFrom $663	Free Cancellation	Rating 7.6 1,371 reviews		Search Finnair flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Oulu?

Finding the right flight to Oulu from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Oulu quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Oulu with flexible booking policies on momondo?

Yes. All flights to Oulu from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Oulu?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Oulu.

I’m not ready to book a flight from Washington, D.C. to Oulu right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Oulu from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.