$459 Find Cheap Flights from St. Louis to Finland

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 2/23. 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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Flight Deals

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, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
9:35 am - 10:45 am
STL
-
HEL
17h 10m1 stop
Multiple Airlines Logo
12:45 pm - 11:56 pm
HEL
-
STL
19h 11m1 stop
$459Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
7:00 am - 10:45 am
STL
-
HEL
19h 45m1 stop
Multiple Airlines Logo
8:30 pm - 7:29 pm
HEL
-
STL
30h 59m2 stops
$477Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Delta Logo
10:13 am - 4:25 pm
STL
-
HEL
22h 12m2 stops
Delta Logo
7:00 am - 4:42 pm
HEL
-
STL
17h 42m2 stops
$488Delta
Thu, Mar 12 - Thu, Mar 19
American Airlines Logo
1:34 pm - 1:55 pm
STL
-
HEL
17h 21m2 stops
American Airlines Logo
12:30 pm - 10:58 pm
HEL
-
STL
17h 28m1 stop
$527American Airlines
Thu, Mar 12 - Thu, Mar 19
American Airlines Logo
1:34 pm - 1:55 pm
STL
-
HEL
17h 21m2 stops
American Airlines Logo
7:50 am - 6:00 pm
HEL
-
STL
17h 10m2 stops
$663American Airlines
Thu, Mar 12 - Thu, Mar 19
American Airlines Logo
11:46 am - 10:45 am
STL
-
HEL
15h 59m1 stop
American Airlines Logo
12:30 pm - 7:29 pm
HEL
-
STL
13h 59m1 stop
$726American Airlines
Mon, Feb 23 - Mon, Mar 2
Scandinavian Airlines Logo
3:47 pm - 3:25 pm
STL
-
HEL
15h 38m2 stops
Scandinavian Airlines Logo
7:00 am - 11:36 pm
HEL
-
STL
24h 36m3 stops
$766Scandinavian Airlines
Mon, Feb 23 - Mon, Mar 2
Scandinavian Airlines Logo
3:47 pm - 8:20 pm
STL
-
HEL
20h 33m3 stops
Scandinavian Airlines Logo
7:00 am - 11:36 pm
HEL
-
STL
24h 36m3 stops
$773Scandinavian Airlines
Wed, Jul 1 - Wed, Jul 15
United Airlines Logo
8:00 am - 12:05 pm
STL
-
HEL
20h 05m2 stops
United Airlines Logo
6:35 am - 1:25 pm
HEL
-
STL
14h 50m1 stop
$868United Airlines
Wed, Jul 1 - Wed, Jul 15
British Airways Logo
11:20 am - 9:00 pm
STL
-
HEL
25h 40m2 stops
British Airways Logo
8:00 am - 7:46 pm
HEL
-
STL
19h 46m2 stops
$869British Airways
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.

Which airlines fly non-stop between St. Louis and Finland?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Finland.

There is just one airline that flies from St. Louis to Finland direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is to Helsinki (HEL) and costs $490.

Which airlines provide the cheapest flights from St. Louis to Finland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Finland were found on Delta ($488) and American Airlines ($527).

Find deals

Good to know

Low seasonFebruary
Cheapest flight$459
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly with an average 23% increase in price.
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.

Reviews of the top airline flying from St. Louis to Finland

 
Need help choosing which airline to fly with from St. Louis to Finland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11101 reviews
7.2Comfort
8.0Crew
6.9Entertainment
7.5Boarding
6.4Food
Airline reviews

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

6.0 GoodJonathan, Jan 2026
CLT - DFW
Read more American Airlines reviews

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

Seats were much more cramped then on the 737. Narrower and rows closer together. Flight was absolutely packed and the plugs under the seats didn't work. Was forced to check my bag even though previous flight had no issue with it.

Good food & refreshment. The seats and entrainment screens are modern compared to others. The staff though pleasant serve and attend to passengers based on nationality. Some get served first others last regardless of their seating positions.

It was fine. My connection in Charlotte to go to WPB was too late and I had to spend the night in the Charlotte Airport in the mini suites.

The flight was on time and arrived early. The crew were friendly and helpful.

My carry on baggage was damaged. Entire trip, I had to carry the baggage. When complained to the boarding crew, they got mad at me and still asked me to valet check in the cabin baggage. Rude boarding crew!!!

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

Information on your arrival and departure airports

St. Louis (STL)