$744 Find Cheap Flights from St. Louis to Finland - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Finland departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap St. Louis to Finland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Finland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Nov 9 - Mon, Nov 23
Lufthansa Logo
2:00 pm - 6:50 pm
STL
-
HEL
20h 50m
2 stops
Lufthansa Logo
7:35 pm - 9:13 pm
HEL
-
STL
33h 38m
2 stops
$744Lufthansa
Wed, Nov 25 - Sun, Nov 29
Scandinavian Airlines Logo
1:30 pm - 3:25 pm
STL
-
HEL
17h 55m
2 stops
Scandinavian Airlines Logo
9:00 pm - 11:39 pm
HEL
-
STL
34h 39m
2 stops
$749Scandinavian Airlines
Mon, Nov 2 - Fri, Nov 6
United Airlines Logo
7:04 pm - 6:50 pm
STL
-
HEL
15h 46m
2 stops
United Airlines Logo
12:45 pm - 10:41 am
HEL
-
STL
29h 56m
2 stops
$752United Airlines
Mon, Nov 9 - Mon, Nov 23
United Airlines Logo
8:28 am - 6:50 pm
STL
-
HEL
26h 22m
3 stops
United Airlines Logo
12:45 pm - 3:26 pm
HEL
-
STL
58h 41m
2 stops
$755United Airlines
Sun, Sep 6 - Sun, Sep 13
Scandinavian Airlines Logo
3:44 pm - 3:20 pm
STL
-
HEL
15h 36m
2 stops
Scandinavian Airlines Logo
4:00 pm - 11:42 pm
HEL
-
STL
39h 42m
2 stops
$778Scandinavian Airlines
Mon, Nov 9 - Mon, Nov 23
Multiple Airlines Logo
5:00 am - 11:10 am
STL
-
HEL
22h 10m
1 stop
Multiple Airlines Logo
4:40 pm - 9:30 am
HEL
-
STL
24h 50m
2 stops
$780Multiple Airlines
Mon, Nov 9 - Mon, Nov 23
American Airlines Logo
12:58 pm - 11:10 am
STL
-
HEL
14h 12m
1 stop
American Airlines Logo
12:30 pm - 8:17 pm
HEL
-
STL
15h 47m
1 stop
$781American Airlines
Mon, Oct 5 - Mon, Oct 19
Lufthansa Logo
1:29 pm - 12:05 pm
STL
-
HEL
14h 36m
2 stops
Lufthansa Logo
6:15 pm - 1:25 pm
HEL
-
STL
27h 10m
1 stop
$802Lufthansa
Mon, Nov 9 - Mon, Nov 23
Air Canada Logo
11:25 am - 6:50 pm
STL
-
HEL
23h 25m
3 stops
Air Canada Logo
12:45 pm - 12:06 pm
HEL
-
STL
31h 21m
3 stops
$808Air Canada
Mon, Nov 2 - Fri, Nov 6
United Airlines Logo
7:04 pm - 6:50 pm
STL
-
HEL
15h 46m
2 stops
United Airlines Logo
12:45 pm - 9:13 pm
HEL
-
STL
16h 28m
2 stops
$812United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Finland flights

Get data-powered insights and trends into flights from St. Louis to Finland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Finland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Finland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Finland is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $1,744 and $1,091 respectively.

Find deals

Good to know

Low season

February

Cheapest flight

$744
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from St. Louis to Helsinki

FAQs - booking Finland flights

  • How does KAYAK find such low prices on flights from St. Louis to Finland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Finland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Finland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Finland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Finland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Finland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Finland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Finland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Finland

Information on your arrival and departure airports

St. Louis (STL)