App
Customer Support
AED
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from St. Louis to Helsinki Starting at AED 2,267

Discover our range of affordable one-way and round-trip flights from St. Louis to Helsinki and kick-start your next adventure today!

  • One way
  • Round-trip
      • STL10:49
        16h 1m
        1 stop
        HEL10:50
        Tue, Feb 25|St. Louis - Helsinki|Finnair
        AED 2,267AED 4,443
        49% OFF
        49% OFF
        AED 4,443AED 2,267

        Choose Finnair flights from St. Louis to Helsinki. The one-way connecting flight with Finnair departs from St. Louis Lambert International Airport on Tue, Feb 25, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,267 including taxes and charges.

      • STL09:15
        17h 35m
        1 stop
        HEL10:50
        Tue, Feb 25|St. Louis - Helsinki|Iberia
        AED 2,352AED 4,443
        47% OFF
        47% OFF
        AED 4,443AED 2,352

        Choose Iberia flights from St. Louis to Helsinki. The one-way connecting flight with Iberia departs from St. Louis Lambert International Airport on Tue, Feb 25, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,352 including taxes and charges.

      • STL11:21
        15h 24m
        1 stop
        HEL10:45
        Tue, Apr 15|St. Louis - Helsinki|Iberia
        AED 2,466AED 4,443
        45% OFF
        45% OFF
        AED 4,443AED 2,466

        Choose Iberia flights from St. Louis to Helsinki. The one-way connecting flight with Iberia departs from St. Louis Lambert International Airport on Tue, Apr 15, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,466 including taxes and charges.

      • STL18:00
        12h 15m
        1 stop
        HEL14:15
        Tue, Apr 15|St. Louis - Helsinki|American Airlines
        AED 2,541
        AED 2,541

        Choose American Airlines flights from St. Louis to Helsinki. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Tue, Apr 15, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,541 including taxes and charges.

      • STL15:45
        13h 55m
        1 stop
        HEL13:40
        Fri, Mar 7|St. Louis - Helsinki|Lufthansa
        AED 2,704
        AED 2,704

        Choose Lufthansa flights from St. Louis to Helsinki. The one-way connecting flight with Lufthansa departs from St. Louis Lambert International Airport on Fri, Mar 7, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,704 including taxes and charges.

      • STL17:37
        34h 13m
        1 stop
        HEL10:50
        Sat, Mar 8|St. Louis - Helsinki|American Airlines
        AED 2,718
        AED 2,718

        Choose American Airlines flights from St. Louis to Helsinki. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Sat, Mar 8, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,718 including taxes and charges.

      • STL05:10
        21h 40m
        1 stop
        HEL10:50
        Mon, Feb 24|St. Louis - Helsinki|American Airlines
        AED 2,732
        AED 2,732

        Choose American Airlines flights from St. Louis to Helsinki. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Mon, Feb 24, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,732 including taxes and charges.

      • STL15:40
        14h 35m
        1 stop
        HEL14:15
        Tue, Apr 15|St. Louis - Helsinki|United Airlines
        AED 2,752
        AED 2,752

        Choose United Airlines flights from St. Louis to Helsinki. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Apr 15, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,752 including taxes and charges.

      • STL09:29
        17h 21m
        1 stop
        HEL10:50
        Mon, Feb 24|St. Louis - Helsinki|Iberia
        AED 2,833
        AED 2,833

        Choose Iberia flights from St. Louis to Helsinki. The one-way connecting flight with Iberia departs from St. Louis Lambert International Airport on Mon, Feb 24, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,833 including taxes and charges.

      • STL11:39
        15h 11m
        1 stop
        HEL10:50
        Fri, Mar 7|St. Louis - Helsinki|Iberia
        AED 2,903
        AED 2,903

        Choose Iberia flights from St. Louis to Helsinki. The one-way connecting flight with Iberia departs from St. Louis Lambert International Airport on Fri, Mar 7, arriving at Helsinki-Vantaa Airport. One-way Prices start from AED 2,903 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        HEL02:00 pm
        Mon, Mar 3|St. Louis - Helsinki|Finnair
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

St. Louis to Helsinki flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA2480

    American Airlines

    09:29

    STL

    2.1h

    11:33

    DFW

    SMTWTFS
    Search

  2. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SMTWTFS

  3. IB4594

    Iberia

    09:49

    STL

    1.8h

    11:39

    DFW

    SMTWT-S
    Search

  4. IB6449

    Iberia

    16:50

    DFW

    9.9h

    10:45

    HEL

    SMTWTFS

  5. AY5718

    Finnair

    10:36

    STL

    1.9h

    12:30

    DFW

    SMTWTFS
    Search

  6. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SMTWTFS

  7. AA1362

    American Airlines

    11:25

    STL

    2.1h

    13:31

    DFW

    SMTWTFS
    Search

  8. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SMTWTFS

  9. IB4150

    Iberia

    11:25

    STL

    2.1h

    13:31

    DFW

    SMTWT-S
    Search

  10. IB6449

    Iberia

    16:50

    DFW

    9.9h

    10:45

    HEL

    SMTWTFS

  11. KL6363

    KLM

    13:00

    STL

    1.6h

    15:34

    ATL

    SMTWTFS
    Search

  12. KL6072

    KLM

    17:10

    ATL

    8.5h

    07:40

    AMS

    SMTWTFS

  13. KL1251

    KLM

    09:45

    AMS

    2.3h

    13:05

    HEL

    SMTWTFS

  14. UA4566

    United Airlines

    13:03

    STL

    1.5h

    14:35

    ORD

    SMTWTFS
    Search

  15. FI852

    Icelandair

    19:25

    ORD

    6.3h

    06:40

    KEF

    SMTWTFS

  16. FI342

    Icelandair

    07:30

    KEF

    3.5h

    14:00

    HEL

    SMTWTFS

  17. UA9067

    United Airlines

    15:25

    STL

    8.9h

    07:20

    FRA

    --T-T-S
    Search

  18. UA8735

    United Airlines

    09:20

    FRA

    2.4h

    12:45

    HEL

    SMT-TFS

  19. LH449

    Lufthansa

    15:30

    STL

    8.9h

    07:25

    FRA

    --T-T-S
    Search

  20. LH848

    Lufthansa

    09:25

    FRA

    2.4h

    12:50

    HEL

    SMTWTFS

  21. BA5761

    British Airways

    15:36

    STL

    1.4h

    17:00

    ORD

    SMTWT-S
    Search

  22. BA296

    British Airways

    21:15

    ORD

    7.8h

    11:00

    LHR

    SMTWTFS

  23. BA6006

    British Airways

    13:00

    LHR

    2.8h

    17:50

    HEL

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from St. Louis to Helsinki?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Helsinki from St. Louis have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from St. Louis (STL) to Helsinki (HEL) the cheapest?

    Airlines adjust prices for flights from St. Louis to Helsinki based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from St. Louis (STL) to Helsinki (HEL) cost?

    According to Trip.com's data, the lowest price is around AED 4,356.

  • What is the transportation method from the main airport to downtown in Helsinki?

    • The distance from Helsinki-Vantaa Airport to downtown is about 16 km, by taxi about 30 minutes.

  • How many airports are there in Helsinki (HEL)?

    There are 1 airport(s) near Helsinki (HEL): Helsinki-Vantaa Airport.

How to find a cheap flight from St. Louis to Helsinki

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
1
Being flexible with your dates to get the cheapest St. Louis to Helsinki ticket.
Tap "Date" on flight search bar to scan through the calender for St. Louis to Helsinki airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Tue, Feb 25 at AED 2267 for one-way flights.
2
Compare cheap St. Louis to Helsinki flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from St. Louis to Helsinki. The cheapest airline operating is Finnair.
3
Set up a Price Alert
By setting up a Price Alert for your St. Louis to Helsinki route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap St. Louis to Helsinki flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from St. Louis to Helsinki to get exclusive deals for you.

Flight Info | St. Louis to Helsinki

Cheapest direct flight priceAED 2,267
Off-season for travelJanuary
Peak season for travelDecember
Flight distance7,539.32 km
Popular airlineAmerican Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.