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$484+ Cheap flights from Missouri to Helsinki (HEL)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HEL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Missouri to Helsinki

Cheapest flights from Missouri to Helsinki
Explore the most affordable flight options available from Missouri to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Finnair deal was found by Cheapflights users on 1/28. 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.
Wed 4/16:00 am
STL
-
HEL
1 stop24h 15m
Multiple Airlines
Wed 4/84:25 pm
HEL
-
STL
1 stop23h 58m
Multiple Airlines
Deal found 1/28$484
This American Airlines deal was found by Cheapflights users on 1/28. 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 4/11:39 pm
STL
-
HEL
2 stops16h 21m
American Airlines
Wed 4/84:25 pm
HEL
-
STL
1 stop13h 49m
American Airlines
Deal found 1/28$489
This United Airlines deal was found by Cheapflights users on 1/28. 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 4/18:54 am
STL
-
HEL
2 stops26h 01m
United Airlines
Wed 4/81:55 pm
HEL
-
STL
2 stops17h 01m
United Airlines
Deal found 1/28$500
This American Airlines deal was found by Cheapflights users on 1/28. 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 4/246:30 am
MCI
-
HEL
1 stop20h 15m
American Airlines
Thu 4/3012:35 pm
HEL
-
MCI
1 stop19h 49m
American Airlines
Deal found 1/28$534
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 4/211:46 am
STL
-
HEL
1 stop14h 59m
American Airlines
Thu 4/94:25 pm
HEL
-
STL
1 stop15h 23m
American Airlines
Deal found 1/28$534
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 4/26:05 pm
STL
-
HEL
2 stops16h 50m
United Airlines
Thu 4/96:35 am
HEL
-
STL
2 stops24h 21m
United Airlines
Deal found 1/28$550
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:38 pm
MCI
-
HEL
2 stops22h 22m
British Airways
Thu 4/3012:35 pm
HEL
-
MCI
1 stop19h 49m
British Airways
Deal found 1/28$561
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 4/246:15 am
MCI
-
HEL
2 stops22h 55m
United Airlines
Thu 4/306:35 am
HEL
-
MCI
2 stops34h 36m
United Airlines
Deal found 1/28$562
This American Airlines deal was found by Cheapflights users on 1/28. 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 11/69:38 am
STL
-
HEL
1 stop17h 07m
American Airlines
Sat 11/2112:30 pm
HEL
-
STL
1 stop15h 00m
American Airlines
Deal found 1/28$607
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 2/195:12 am
STL
-
HEL
1 stop21h 33m
American Airlines
Mon 2/2312:45 pm
HEL
-
STL
1 stop19h 11m
American Airlines
Deal found 1/28$689
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 2/1912:37 pm
MCI
-
HEL
2 stops22h 13m
United Airlines
Mon 2/236:55 am
HEL
-
MCI
2 stops23h 04m
United Airlines
Deal found 1/28$700
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 2/13:24 pm
MCI
-
HEL
2 stops25h 56m
United Airlines
Sat 2/71:50 pm
HEL
-
MCI
2 stops37h 57m
United Airlines
Deal found 1/28$783

Find flight deals from Missouri to Helsinki

Keep the following information in mind while searching for Missouri to Helsinki flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$484
(Finnair)

Popular in

May

Cheapest in

February
Provider with most accurate pricing for Lambert-St Louis-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Helsinki-Vantaa flights.
Search Deals
From Missouri to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Helsinki 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 January 29, 2026.
Use the filters below to find and compare flights from Missouri to Helsinki that are best for you.

Fly from

Missouri

Fly to

Helsinki

Route

Depart

Return

Price

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 4/1

6:00 am-2:15 pm

1 stop24h 15m

Helsinki-Vantaa

Wed 4/8

4:25 pm-8:23 am

1 stop23h 58m

$484

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 4/1

9:37 am-2:15 pm

1 stop20h 38m

Helsinki-Vantaa

Wed 4/8

4:25 pm-10:14 pm

1 stop13h 49m

$484

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 4/1

8:54 am-6:55 pm

2 stops26h 01m

Helsinki-Vantaa

Wed 4/8

1:55 pm-10:56 pm

2 stops17h 01m

$500

Kansas CityHelsinki

MCI - HEL

MCIHEL

Kansas City

Fri 4/24

2:38 pm-9:00 pm

2 stops22h 22m

Helsinki-Vantaa

Thu 4/30

12:35 pm-12:24 am

1 stop19h 49m

$561

Kansas CityHelsinki

MCI - HEL

MCIHEL

Kansas City

Fri 4/24

6:15 am-1:10 pm

2 stops22h 55m

Helsinki-Vantaa

Thu 4/30

6:35 am-9:11 am

2 stops34h 36m

$562

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 4/2

9:35 am-10:45 am

1 stop17h 10m

Helsinki-Vantaa

Thu 4/9

12:35 pm-10:14 pm

2 stops17h 39m

$579

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 2/19

1:34 pm-1:55 pm

2 stops16h 21m

Helsinki-Vantaa

Mon 2/23

12:45 pm-11:48 pm

2 stops19h 03m

$699

Kansas CityHelsinki

MCI - HEL

MCIHEL

Kansas City

Thu 2/19

12:37 pm-6:50 pm

2 stops22h 13m

Helsinki-Vantaa

Mon 2/23

6:55 am-9:59 pm

2 stops23h 04m

$700

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 3/13

1:34 pm-1:55 pm

2 stops17h 21m

Helsinki-Vantaa

Mon 3/16

12:30 pm-10:58 pm

1 stop17h 28m

$773

Kansas CityHelsinki

MCI - HEL

MCIHEL

Kansas City

Sat 3/21

5:00 am-11:10 am

1 stop23h 10m

Helsinki-Vantaa

Sat 3/28

4:00 pm-10:44 pm

2 stops37h 44m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 20 results
1
2

Best time to book a flight from Missouri to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Missouri with our price prediction graph.
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 Missouri to Helsinki

What is the cheapest month to book a flight from Missouri to Helsinki?

Currently, December is the cheapest month in which you can book a flight from Missouri to Helsinki (average of $441). Flying from Missouri to Helsinki in June is currently the most expensive (average of $1,072). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Helsinki from Missouri?

    If you book a flight to Helsinki from Missouri, you will be flying to Helsinki-Vantaa, which is the city’s only airport. Helsinki-Vantaa (HEL) is located 10.6 mi from the center of Helsinki.

  • How long is the flight from Missouri to Helsinki?

    Departing from Missouri to Helsinki will take you 16h 21m. The distance between Missouri and Helsinki is about 4678 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Missouri to Helsinki that include hotel bookings?

    Yes. In addition to deals on Missouri to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Helsinki.

  • Can I find deals for business class flights from Missouri to Helsinki?

    Yes. Cheapflights offers flight deals from Missouri to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Helsinki?

    Currently, December is the cheapest month in which you can book a flight from Missouri to Helsinki (average of $441). Flying from Missouri to Helsinki in June is currently the most expensive (average of $1,072). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

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Alternative routes for Missouri to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Missouri to Helsinki

Discover the top 2 airlines that operate flights from Missouri to Helsinki. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$431Average$1,018FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$484Average$668FlexibilityNo cancel feeOn-time71%

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