$533 Cheap Flights from Washington (IAD) to Turku (TKU)

View $533 flight on Tue, Aug 26, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Turku (TKU)

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Cheap Flights from Washington to Turku (IAD-TKU)

Prices were available within the past 7 days and start at $533 for one-way flights and $511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sun, Sep 7 - Sun, Sep 14
IAD
Washington
TKU
Turku
$511 Roundtrip, found 4 days ago
$511
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Sun, Sep 7 from Washington to Turku, returning Sun, Sep 14, priced at $511 found 4 days ago
Scandinavian Airlines
Sun, Sep 7 - Sun, Sep 14
IAD
Washington
TKU
Turku
$551 Roundtrip, found 4 days ago
$551
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Sun, Sep 7 from Washington to Turku, returning Sun, Sep 14, priced at $551 found 4 days ago
Scandinavian Airlines
Thu, Sep 11 - Thu, Sep 18
IAD
Washington
TKU
Turku
$554 Roundtrip, found 23 hours ago
$554
Roundtrip
found 23 hours ago
Select Scandinavian Airlines flight, departing Thu, Sep 11 from Washington to Turku, returning Thu, Sep 18, priced at $554 found 23 hours ago
Scandinavian Airlines
Tue, Aug 26 - Mon, Sep 1
IAD
Washington
TKU
Turku
$581 Roundtrip, found 1 day ago
$581
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Tue, Aug 26 from Washington to Turku, returning Mon, Sep 1, priced at $581 found 1 day ago
Scandinavian Airlines
Sat, Sep 6 - Sat, Sep 13
IAD
Washington
TKU
Turku
$588 Roundtrip, found 5 days ago
$588
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Sat, Sep 6 from Washington to Turku, returning Sat, Sep 13, priced at $588 found 5 days ago
Scandinavian Airlines
Sun, Sep 7 - Sun, Sep 14
IAD
Washington
TKU
Turku
$611 Roundtrip, found 4 days ago
$611
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Sun, Sep 7 from Washington to Turku, returning Sun, Sep 14, priced at $611 found 4 days ago
Scandinavian Airlines
Sat, Sep 6 - Sat, Sep 13
IAD
Washington
TKU
Turku
$618 Roundtrip, found 5 days ago
$618
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Sat, Sep 6 from Washington to Turku, returning Sat, Sep 13, priced at $618 found 5 days ago
Swiss International Air Lines
Thu, Sep 11 - Thu, Sep 18
IAD
Washington
TKU
Turku
$756 Roundtrip, found 23 hours ago
$756
Roundtrip
found 23 hours ago
Select Swiss International Air Lines flight, departing Thu, Sep 11 from Washington to Turku, returning Thu, Sep 18, priced at $756 found 23 hours ago
Lufthansa
Thu, Sep 11 - Thu, Sep 18
IAD
Washington
TKU
Turku
$763 Roundtrip, found 23 hours ago
$763
Roundtrip
found 23 hours ago
Select Lufthansa flight, departing Thu, Sep 11 from Washington to Turku, returning Thu, Sep 18, priced at $763 found 23 hours ago
Austrian Airlines
Thu, Sep 11 - Thu, Sep 18
IAD
Washington
TKU
Turku
$764 Roundtrip, found 23 hours ago
$764
Roundtrip
found 23 hours ago
Select Austrian Airlines flight, departing Thu, Sep 11 from Washington to Turku, returning Thu, Sep 18, priced at $764 found 23 hours ago
Flights from Washington (IAD) to Turku (TKU)
Origin airport
Washington Dulles Intl.
Destination airport
Turku
Airlines serving
Scandinavian Airlines
Roundtrip price
$511
Distance
4224 mi

Washington to Turku Flights

The cheapest times to fly from Washington to Turku

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Turku are during the month of September. You can find some of the cheapest flights from Washington to Turku with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Turku

Sunday is one of the best days to book for cheap flights from Washington to Turku: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Turku

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Turku in 2025. You can also book with separate airlines for your outbound and return journeys, from $533 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Turku flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Turku airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU) cost?
Discover the latest flight deals from IAD to TKU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to TKU?
The cheapest flights from IAD to TKU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to TKU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to TKU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU)?
You'll have to take a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from IAD to TKU?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU) last-minute?
Last-minute bookings from IAD to TKU are generally more expensive. For the best prices, start looking for flights early. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book an IAD to TKU flight and hotel package?
Securing an IAD to TKU flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Turku Airport (TKU)?
Typically, you can reschedule or cancel your IAD to TKU flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further information, go to our Customer Service portal.

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*Available to One Key members.