$470+ Cheap flights from St. Louis (STL) to Finland
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HEL
Mar 18 — Mar 251
1 adult, Economy
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Find cheap flights from St. Louis to Finland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Finland
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Best
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One-way
Cheapest flights from St. Louis to FinlandExplore the most affordable flight options available from St. Louis to Finland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.
Explore the most affordable flight options available from St. Louis to Finland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.
This Travelis deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:22 am
STL
- HEL
1 stop16h 28m
Finnair
Tue 4/1412:35 pm
HEL
- STL
1 stop14h 55m
Finnair
Deal found 2/14![Finnair logo]()
$470
This Finnair deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:05 am
STL
- HEL
1 stop22h 55m
Multiple Airlines
Tue 4/1412:35 pm
HEL
- STL
2 stops19h 11m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:00 am
STL
- HEL
1 stop19h 45m
American Airlines
Tue 4/712:35 pm
HEL
- STL
1 stop18h 24m
American Airlines
Deal found 2/14![American Airlines logo]()
$476
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:35 pm
STL
- HEL
2 stops16h 20m
Lufthansa
Tue 4/76:00 am
HEL
- STL
2 stops23h 08m
Lufthansa
Deal found 2/14![Lufthansa logo]()
$493
This KLM deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:25 pm
STL
- HEL
2 stops16h 15m
KLM
Tue 4/147:00 am
HEL
- STL
2 stops21h 42m
KLM
Deal found 2/14![KLM logo]()
$495
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:00 am
STL
- HEL
2 stops24h 55m
United Airlines
Tue 4/77:05 am
HEL
- STL
2 stops33h 20m
United Airlines
Deal found 2/14![United Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:49 pm
STL
- HEL
2 stops16h 06m
United Airlines
Tue 10/207:05 am
HEL
- STL
1 stop14h 20m
United Airlines
Deal found 2/12![United Airlines logo]()
$513
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:10 pm
STL
- HEL
2 stops22h 45m
Air Canada
Tue 10/207:05 am
HEL
- STL
2 stops19h 36m
Air Canada
Deal found 2/12![Air Canada logo]()
$516
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:40 pm
STL
- HEL
2 stops20h 15m
Air Canada
Tue 10/207:05 am
HEL
- STL
2 stops19h 36m
Air Canada
Deal found 2/12![Air Canada logo]()
$520
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:18 pm
STL
- HEL
2 stops18h 22m
Delta
Tue 10/201:55 pm
HEL
- STL
2 stops26h 57m
Delta
Deal found 2/12![Delta logo]()
$521
This KAYAK deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:49 pm
STL
- HEL
2 stops22h 46m
Lufthansa
Tue 10/207:05 am
HEL
- STL
1 stop14h 20m
Lufthansa
Deal found 2/12![Lufthansa logo]()
$523
Best flights from St. Louis to FinlandDiscover carefully curated flight deals from St. Louis to Finland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 16, 2026.
Discover carefully curated flight deals from St. Louis to Finland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 16, 2026.
This Finnair deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:05 am
STL
- HEL
1 stop22h 55m
Multiple Airlines
Tue 4/1412:35 pm
HEL
- STL
2 stops19h 11m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:06 pm
STL
- HEL
2 stops15h 54m
American Airlines
Tue 4/712:35 pm
HEL
- STL
1 stop31h 02m
American Airlines
Deal found 2/14![American Airlines logo]()
$476
This KLM deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:25 pm
STL
- HEL
2 stops16h 15m
KLM
Tue 4/147:00 am
HEL
- STL
2 stops21h 42m
KLM
Deal found 2/14![KLM logo]()
$495
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:00 am
STL
- HEL
2 stops24h 55m
United Airlines
Tue 4/77:05 am
HEL
- STL
2 stops33h 20m
United Airlines
Deal found 2/14![United Airlines logo]()
$500
This FlightHub deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:49 pm
STL
- HEL
2 stops18h 01m
Lufthansa
Tue 3/1012:45 pm
HEL
- STL
2 stops17h 14m
Lufthansa
Deal found 2/15![Lufthansa logo]()
$689
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:34 pm
STL
- HEL
2 stops17h 21m
American Airlines
Sat 4/41:25 pm
HEL
- STL
1 stop18h 33m
American Airlines
Deal found 2/13![American Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:55 pm
STL
- HEL
2 stops22h 40m
United Airlines
Sat 4/46:45 am
HEL
- STL
2 stops23h 43m
United Airlines
Deal found 2/13![United Airlines logo]()
$627
This Air Canada deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:45 am
STL
- HEL
3 stops21h 25m
Multiple Airlines
Tue 4/76:10 am
HEL
- STL
2 stops41h 14m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$635
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:30 am
STL
- HEL
2 stops26h 20m
United Airlines
Tue 3/107:05 am
HEL
- STL
2 stops39h 24m
United Airlines
Deal found 2/13![United Airlines logo]()
$698
Last-minute flights from St. Louis to FinlandDiscover last-minute flight deals from St. Louis to Finland. Data last updated February 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Finland. Data last updated February 16, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:22 am
STL
- HEL
1 stop16h 48m
American Airlines
Sat 4/41:25 pm
HEL
- STL
1 stop18h 33m
American Airlines
Deal found 2/13![American Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:55 pm
STL
- HEL
2 stops22h 40m
United Airlines
Sat 4/46:45 am
HEL
- STL
2 stops23h 43m
United Airlines
Deal found 2/13![United Airlines logo]()
$627
This Travelis deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:22 am
STL
- HEL
1 stop16h 28m
Finnair
Tue 4/1412:35 pm
HEL
- STL
1 stop14h 55m
Finnair
Deal found 2/14![Finnair logo]()
$470
This Finnair deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:05 am
STL
- HEL
1 stop22h 55m
Multiple Airlines
Tue 4/1412:35 pm
HEL
- STL
2 stops19h 11m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$475
This KLM deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:25 pm
STL
- HEL
2 stops16h 15m
KLM
Tue 4/147:00 am
HEL
- STL
2 stops21h 42m
KLM
Deal found 2/14![KLM logo]()
$495
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:00 am
STL
- HEL
1 stop19h 45m
American Airlines
Tue 4/712:35 pm
HEL
- STL
1 stop18h 24m
American Airlines
Deal found 2/14![American Airlines logo]()
$476
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:35 pm
STL
- HEL
2 stops16h 20m
Lufthansa
Tue 4/76:00 am
HEL
- STL
2 stops23h 08m
Lufthansa
Deal found 2/14![Lufthansa logo]()
$493
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:00 am
STL
- HEL
2 stops24h 55m
United Airlines
Tue 4/77:05 am
HEL
- STL
2 stops33h 20m
United Airlines
Deal found 2/14![United Airlines logo]()
$500
This Air Canada deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:45 am
STL
- HEL
3 stops21h 25m
Multiple Airlines
Tue 4/76:10 am
HEL
- STL
2 stops41h 14m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$635
One-way flights from St. Louis to FinlandSearch for one-way flight options from St. Louis to Finland. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
Search for one-way flight options from St. Louis to Finland. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
This BusinessClass deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
STL
- HEL
2 stops25h 25m
Scandinavian Airlines
Deal found 2/15![Scandinavian Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:46 am
STL
- HEL
1 stop14h 59m
American Airlines
Deal found 2/15![American Airlines logo]()
$690
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:20 pm
STL
- HEL
3 stops56h 35m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$693
Find flight deals from St. Louis to Finland
Keep the following information in mind while searching for St. Louis to Finland flight deals. Data was last updated February 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $470 (Travelis) |
Popular in | July |
Cheapest in | February |
Average price | $554 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Finland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 16, 2026.
Use the filters below to find and compare flights from St. Louis to Finland that are best for you.
Fly from
St. Louis
Fly to
Finland
Route
Depart
Return
Price
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Mon 3/30
7:05 am-2:00 pm
1 stop22h 55m
Helsinki-Vantaa
Tue 4/14
12:35 pm-11:46 pm
2 stops19h 11m
$475
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Tue 3/31
2:06 pm-2:00 pm
2 stops15h 54m
Helsinki-Vantaa
Tue 4/7
12:35 pm-11:37 am
1 stop31h 02m
$476
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Mon 3/30
5:25 pm-5:40 pm
2 stops16h 15m
Helsinki-Vantaa
Tue 4/14
7:00 am-8:42 pm
2 stops21h 42m
$495
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Tue 3/31
10:00 am-6:55 pm
2 stops24h 55m
Helsinki-Vantaa
Tue 4/7
7:05 am-8:25 am
2 stops33h 20m
$500
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Wed 3/25
1:34 pm-1:55 pm
2 stops17h 21m
Helsinki-Vantaa
Sat 4/4
1:25 pm-11:58 pm
1 stop18h 33m
$582
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Wed 3/25
5:55 pm-11:35 pm
2 stops22h 40m
Helsinki-Vantaa
Sat 4/4
6:45 am-10:28 pm
2 stops23h 43m
$627
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Tue 3/31
7:45 am-1:10 pm
3 stops21h 25m
Helsinki-Vantaa
Tue 4/7
6:10 am-3:24 pm
2 stops41h 14m
$635
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Tue 3/3
4:49 pm-6:50 pm
2 stops18h 01m
Helsinki-Vantaa
Tue 3/10
12:45 pm-10:59 pm
2 stops17h 14m
$689
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Tue 3/3
8:30 am-6:50 pm
2 stops26h 20m
Helsinki-Vantaa
Tue 3/10
7:05 am-3:29 pm
2 stops39h 24m
$698
St. LouisHelsinki
STL - HEL
STLHEL
Lambert-St Louis
Fri 2/20
7:00 am-4:25 pm
2 stops25h 25m
$580
Showing 1-10 of 12 results
Best time to book a flight from St. Louis to Finland
Have a flexible travel schedule? Discover the best time to fly to Finland from St. Louis with our price prediction graph.
STL-HEL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Finland
STL-FI0
STL-HEL
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Finland
Get insights into the airlines that provide service to Finland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Finland. Reviews last updated February 16, 2026.
Peruse reviews from past customers who have flown with American Airlines from St. Louis to Finland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.9
Boarding
7.5
Comfort
7.2
Overall
7.2
Crew
8.0
Food
6.4
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
Entertainment
6.9
Boarding
7.5
Comfort
7.2
Overall
7.2
Crew
8.0
Food
6.4
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Finland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Finland
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Complete your trip
Complete your trip to Finland by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Finland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Finland flights
Browse other St. Louis and Finland flight options. Last updated on February 16, 2026.
Popular flight searches
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St. Louis to Finland flights
Consider these flights traveling from St. Louis to Finland.
Fly to Finland regions
Consider these flights traveling to Finland regions.
Top airline flying from St. Louis to Finland
Discover the top airline that operate flights from St. Louis to Finland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$484 | Average$668 | FlexibilityNo cancel fee | On-time71% |