Which airports can I use when flying from St. Louis to Helsinki?

Flights from St. Louis to Helsinki usually depart from Lambert-St Louis (STL) and arrive at Helsinki-Vantaa (HEL).

What cabin classes can I book on flights from St. Louis to Helsinki?

Three cabin classes are available on flights from St. Louis to Helsinki: • Economy Class • Premium Economy Class • Business Class

Which airports do connecting flights from St. Louis to Helsinki pass through?

One-stop flights from St. Louis to Helsinki most commonly connect through: • Dallas/Fort Worth (DFW) - 64% of one-stop connections • Chicago O'Hare Intl (ORD) - 21% of one-stop connections • Frankfurt am Main (FRA) - 15% of one-stop connections Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

Can I save money by using flexible dates for flights from St. Louis to Helsinki?

On the St. Louis to Helsinki route, being flexible with your departure day can save you up to 69%. Sunday is the cheapest day at $551 round-trip on average, while Saturday is the most expensive at $1,744: a $1,193 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Helsinki?

Some of the most popular sights in Helsinki are Helsinki Central Station Square, Esplanadi park and Senate Square. These are among the most viewed places in Helsinki on KAYAK.

How long is a flight from St. Louis to Helsinki?

A nonstop flight from St. Louis to Helsinki takes 0h 00m, covering 4,678 miles.

Do I need a passport to fly from St. Louis to Helsinki?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How much time can I save by choosing a different layover airport from St. Louis to Helsinki?

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 13h 54m, compared with 14h 30m via Frankfurt am Main (FRA) and 14h 41m via Dallas/Fort Worth (DFW).

What is the time difference between St. Louis and Helsinki?

Helsinki is 8 hours ahead of St. Louis (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Helsinki-Vantaa Airport (HEL)?

Helsinki-Vantaa Airport (HEL) hosts 5 major car rental companies, with daily rates starting from around $3 for economy cars. Top options include: • ADDCAR RENTAL • GREEN MOTION • Alamo • Sixt • Europcar

How much should I expect to pay for a St. Louis to Helsinki flight?

Round-trip flights from St. Louis to Helsinki range from $560 to $1,055, with an average of $760 over the past 12 months. Anything below $560 counts as a good deal.

What is the cheapest airline to fly from St. Louis to Helsinki?

Lufthansa ($651) and American Airlines ($703) are the cheapest airlines to fly round-trip from St. Louis to Helsinki according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from St. Louis to Helsinki?

Dallas/Fort Worth (DFW) is the most popular layover for the St. Louis to Helsinki route. 64% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DFW.

What is the cheapest layover airport when flying from St. Louis to Helsinki?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average round-trip price of $797. Based on KAYAK data over the past 3 months.

When flying from St. Louis to Helsinki which airport offers the shortest layover?

Dallas/Fort Worth (DFW) had the shortest average connection time for St. Louis to Helsinki layovers at 498 minutes over the past 3 months.

$477 CHEAP FLIGHTS from St. Louis to Helsinki (STL - HEL)

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Cheapest round-trip

$651

Typical prices: $560-$1,055

Lufthansa

Fri 11/30Thu 12/6

STL - HEL • 2 stops

Nonstop flights

Not available

There are currently no direct flights between St. Louis and Helsinki. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

January

Cheapest • 37% price drop

November

Most popular

Good to know

Top layover airports

Chicago O'Hare Intl (ORD)

Cheapest • Avg $797 (round-trip)

Frankfurt am Main (FRA)

Shortest trip • 14h 30m (one-way)

Insights

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We hope you love your trip to Helsinki!

Flight Deals

Cheap Flights from St. Louis to Helsinki (STL-HEL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from St. Louis to Helsinki

Mon, Nov 30 - Sun, Dec 6

6:50 pm - 6:45 pmSTL Lambert-St Louis-HEL Helsinki-Vantaa

15h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 am - 1:45 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

14h 40m1 stop Frankfurt am Main

$651Lufthansa

Mon, Nov 30 - Sun, Dec 6

6:50 pm - 6:45 pmSTL Lambert-St Louis-HEL Helsinki-Vantaa

15h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 am - 10:59 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

23h 54m2 stops Frankfurt am Main Chicago O'Hare Intl

$669Multiple Airlines

Mon, Nov 30 - Sun, Dec 6

12:56 pm - 11:40 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

14h 44m1 stop Dallas/Fort Worth

12:30 pm - 9:59 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

17h 29m1 stop Dallas/Fort Worth

$703American Airlines

Mon, Feb 8 - Thu, Feb 11

9:22 am - 6:45 pmSTL Lambert-St Louis-HEL Helsinki-Vantaa

25h 23m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

12:35 pm - 9:13 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

16h 38m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$747United Airlines

Mon, Feb 8 - Thu, Feb 11

3:21 pm - 6:45 pmSTL Lambert-St Louis-HEL Helsinki-Vantaa

19h 24m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

12:35 pm - 9:13 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

16h 38m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$747United Airlines

Fri, Dec 11 - Tue, Dec 15

12:58 pm - 10:30 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

13h 32m1 stop Dallas/Fort Worth

12:30 pm - 9:59 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

17h 29m1 stop Dallas/Fort Worth

$873American Airlines

Fri, Dec 11 - Tue, Dec 15

8:29 am - 10:30 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

18h 01m1 stop Dallas/Fort Worth

12:30 pm - 10:15 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

17h 45m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$877American Airlines

Mon, Feb 8 - Thu, Feb 11

12:53 pm - 11:40 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

14h 47m1 stop Dallas/Fort Worth

12:30 pm - 7:41 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

15h 11m1 stop Dallas/Fort Worth

$1,064Finnair

Sat, Dec 26 - Mon, Jan 4

6:56 pm - 11:40 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

32h 44m1 stop Dallas/Fort Worth

1:25 pm - 10:25 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

17h 00m1 stop Miami

$1,165Finnair

Sat, Dec 26 - Mon, Jan 4

6:56 pm - 11:40 amSTL Lambert-St Louis-HEL Helsinki-Vantaa

32h 44m1 stop Dallas/Fort Worth

1:25 pm - 10:25 pmHEL Helsinki-Vantaa-STL Lambert-St Louis

17h 00m1 stop Miami

$1,171Finnair

Booking Insights

Price, demand and travel trends for St. Louis to Helsinki flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Helsinki with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from St. Louis to Helsinki?

Round-trip flights from St. Louis to Helsinki start at $651. Prices are typical for this route right now, with typical round-trip fares ranging from $560 to $1,055. The lowest price found in the past 5 days was $651 on Lufthansa.

Find deals

Low season	May
High season	November
Cheapest flight	$651

Best time to beat the crowds but there is an average 17% increase in price.

Flight from St. Louis to Helsinki

When to book flights from St. Louis to Helsinki

Are your dates flexible? Find out the best times to travel from St. Louis to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from St. Louis to Helsinki?
Three cabin classes are available on flights from St. Louis to Helsinki:

• Economy Class
• Premium Economy Class
• Business Class
How long is a flight from St. Louis to Helsinki?
A nonstop flight from St. Louis to Helsinki takes 0h 00m, covering 4,678 miles.
Do I need a passport to fly from St. Louis to Helsinki?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a St. Louis to Helsinki flight?
Round-trip flights from St. Louis to Helsinki range from $560 to $1,055, with an average of $760 over the past 12 months. Anything below $560 counts as a good deal.
What car rental options are available at Helsinki-Vantaa Airport (HEL)?
Helsinki-Vantaa Airport (HEL) hosts 5 major car rental companies, with daily rates starting from around $3 for economy cars. Top options include:
• ADDCAR RENTAL
• GREEN MOTION
• Alamo
• Sixt
• Europcar
Which airports can I use when flying from St. Louis to Helsinki?
Flights from St. Louis to Helsinki usually depart from Lambert-St Louis (STL) and arrive at Helsinki-Vantaa (HEL).
Which airports do connecting flights from St. Louis to Helsinki pass through?
One-stop flights from St. Louis to Helsinki most commonly connect through:

• Dallas/Fort Worth (DFW) - 64% of one-stop connections
• Chicago O'Hare Intl (ORD) - 21% of one-stop connections
• Frankfurt am Main (FRA) - 15% of one-stop connections

Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from St. Louis to Helsinki?
On the St. Louis to Helsinki route, being flexible with your departure day can save you up to 69%. Sunday is the cheapest day at $551 round-trip on average, while Saturday is the most expensive at $1,744: a $1,193 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How much time can I save by choosing a different layover airport from St. Louis to Helsinki?
Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 13h 54m, compared with 14h 30m via Frankfurt am Main (FRA) and 14h 41m via Dallas/Fort Worth (DFW).
What is the time difference between St. Louis and Helsinki?
Helsinki is 8 hours ahead of St. Louis (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Helsinki?
Some of the most popular sights in Helsinki are Helsinki Central Station Square, Esplanadi park and Senate Square. These are among the most viewed places in Helsinki on KAYAK.

If your dates can be flexible, aim for a Sunday departure instead of Saturday. On this route, Sunday flights average $551 - about $1,193 less than Saturday (68% savings) based on the last 12 months.
If you can choose when to travel, plan your St. Louis to Helsinki trip for January. Fares historically average $482 round-trip in that month - typically $1,262 less than the most expensive month, which is December (based on the last 12 months).

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STL - HEL

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Everything you should know

Cheap Flights from St. Louis to Helsinki (STL-HEL)

Recent round-trip flight deals from St. Louis to Helsinki

Recent one-way flight deals from St. Louis to Helsinki

Recent last minute flight deals from St. Louis to Helsinki

Price, demand and travel trends for St. Louis to Helsinki flights

How much is a round-trip flight from St. Louis to Helsinki?

What is the cheapest airline to fly from St. Louis to Helsinki?

What is the most popular layover airport when flying from St. Louis to Helsinki?

What is the cheapest layover airport when flying from St. Louis to Helsinki?

When flying from St. Louis to Helsinki which airport offers the shortest layover?

Key details for St. Louis to Helsinki flights

Low season

High season

Cheapest flight

When to book flights from St. Louis to Helsinki

Your St. Louis to Helsinki flight questions, answered

Your guide to booking St. Louis to Helsinki flights

More options for your flight from St. Louis to Helsinki

Complete your trip to Helsinki with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from St. Louis to Helsinki

Find direct flights to and from St. Louis and Helsinki

Flights from domestic origins to Helsinki

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