$483 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 4/13. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Finland

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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, Apr 13 - Fri, Apr 24
Multiple Airlines Logo
8:53 am - 2:15 pm
STL
-
HEL
21h 22m1 stop
Multiple Airlines Logo
12:35 pm - 6:17 pm
HEL
-
STL
13h 42m1 stop
$483Multiple Airlines
Sun, Jan 25 - Tue, Feb 10
Delta Logo
6:57 pm - 4:25 pm
STL
-
HEL
37h 28m2 stops
Delta Logo
7:00 am - 8:37 pm
HEL
-
STL
21h 37m2 stops
$488Delta
Sun, Jan 25 - Tue, Feb 10
Multiple Airlines Logo
3:50 pm - 1:10 pm
STL
-
HEL
13h 20m1 stop
Multiple Airlines Logo
1:55 pm - 3:29 pm
HEL
-
STL
33h 34m2 stops
$489Multiple Airlines
Mon, Apr 13 - Fri, Apr 24
Delta Logo
11:43 am - 4:40 pm
STL
-
HEL
20h 57m2 stops
Delta Logo
7:00 am - 8:38 pm
HEL
-
STL
21h 38m2 stops
$496Delta
Mon, Feb 9 - Wed, Feb 18
Delta Logo
9:59 am - 4:25 pm
STL
-
HEL
22h 26m2 stops
Delta Logo
2:05 pm - 5:42 pm
HEL
-
STL
35h 37m2 stops
$497Delta
Sun, Jan 25 - Tue, Feb 10
Multiple Airlines Logo
11:37 am - 1:55 pm
STL
-
HEL
18h 18m1 stop
Multiple Airlines Logo
4:50 pm - 10:51 am
HEL
-
STL
26h 01m1 stop
$552Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
Multiple Airlines Logo
11:41 am - 2:00 pm
STL
-
HEL
18h 19m1 stop
Multiple Airlines Logo
4:25 pm - 11:48 pm
HEL
-
STL
15h 23m1 stop
$583Multiple Airlines
Tue, Feb 10 - Sun, Feb 15
Multiple Airlines Logo
5:56 pm - 4:25 pm
STL
-
HEL
14h 29m2 stops
Multiple Airlines Logo
7:00 am - 11:36 pm
HEL
-
STL
24h 36m2 stops
$597Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
United Airlines Logo
6:05 pm - 1:35 am
STL
-
HEL
23h 30m2 stops
United Airlines Logo
6:45 am - 10:28 pm
HEL
-
STL
23h 43m2 stops
$599United Airlines
Wed, Feb 11 - Sun, Feb 15
Multiple Airlines Logo
10:19 am - 1:10 pm
STL
-
HEL
18h 51m2 stops
Multiple Airlines Logo
7:00 am - 11:36 pm
HEL
-
STL
24h 36m2 stops
$603Multiple 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.

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 $481.

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 United Airlines ($488).

Good to know

Low seasonFebruary
Cheapest flight$483
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 22% 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 11073 reviews
8.0Crew
6.4Food
6.9Entertainment
7.5Boarding
7.2Comfort
Airline reviews

Better service. No food options, but we did get drinks and a cookie.

8.0 ExcellentKrishna, Dec 2025
PHX - LAS
Read more American Airlines reviews

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

I don’t know who decides what food to serve on these flights but I would be so embarrassed if I served this to anyone and call it food…

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

Information on your arrival and departure airports