Skip to Main Content.

Groups & meetings

Expedia Magazine

One Key credit cards

List your property Support Trips

Unlock instant savings with Member Prices

Adobe

Cheap Finnair flights St. Louis (STL) to Turku (TKU)

Roundtrip
One-way
Multi-city

Travelers

Adults

ChildrenAges 2 to 17

InfantsYounger than 2

Economy Premium economy Business class First class

Leaving from

Going to

Departing

Returning

Add a place to stay

Add a car

Direct flights only

Finnair Flights from Lambert-St. Louis Intl. Airport to Turku Airport
Finnair Flights
Flights
Expedia.com

Travel information

Travel information

Origin airport	Lambert-St. Louis Intl.
Destination airport	Turku
Distance	4602 mi

*Available to One Key members.

Company

About
Jobs
List your property
Partnerships
Newsroom
Investor Relations
Advertising
Affiliate Marketing
Feedback

Explore

United States of America travel guide
Hotels in United States of America
Vacation rentals in United States of America
Vacation packages in United States of America
Domestic flights
Car rentals in United States of America
All accommodation types
One Key credit cards

Policies

Privacy
Cookies
Terms of use
One Key™ terms and conditions
Vrbo terms and conditions
Accessibility
Your privacy choices
Content guidelines and reporting content

Help

Support
Cancel your hotel or vacation rental booking
Cancel your flight
Refund basics
Use an Expedia coupon
International travel documents
Your rights as a flights traveler

© 2025 Expedia, Inc., an Expedia Group company. All rights reserved. Expedia and the Expedia Logo are trademarks or registered trademarks of Expedia, Inc. CST# 2029030-50.

431655a7-0359-4a56-b84b-672d9ecb56b23c4e067c-ff91-4394-a49f-6e6d1537dbda