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Cheap flights from St Louis (STL) to Helsinki (HEL)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)

How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)
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How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)
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How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)
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Cheap flights from St Louis to Helsinki in November , December 2025

18 Nov - 13 Dec $ 737.00
STL
St Louis
Lufthansa
2 STOPS
HEL
Helsinki
HEL
Helsinki
Lufthansa
2 STOPS
STL
St Louis
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18 Nov - 06 Dec $ 2,798.00
STL
St Louis
SAS
2 STOPS
HEL
Helsinki
HEL
Helsinki
SAS
2 STOPS
STL
St Louis
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18 Nov - 06 Dec $ 6,020.00
STL
St Louis
Finnair
2 STOPS
HEL
Helsinki
HEL
Helsinki
Finnair
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Helsinki

18 Nov - 01 Dec $ 1,314.00
STL
St Louis
Frontier Airlines
2 STOPS
HEL
Helsinki
HEL
Helsinki
Frontier Airlines
3 STOPS
STL
St Louis
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18 Nov - 01 Dec $ 1,329.00
STL
St Louis
Frontier Airlines
2 STOPS
HEL
Helsinki
HEL
Helsinki
Frontier Airlines
3 STOPS
STL
St Louis
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18 Nov - 01 Dec $ 1,359.00
STL
St Louis
Frontier Airlines
2 STOPS
HEL
Helsinki
HEL
Helsinki
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Helsinki from St Louis

6:43 PM - 3:15 PM
Lufthansa
2 Stops
16h 7m
STL - HEL
$ 374
Kiwi
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12:31 PM - 9:40 AM
Lufthansa
2 Stops
16h 39m
STL - HEL
$ 388
Kiwi
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8:00 AM - 9:40 AM
United Airlines
2 Stops
21h 10m
STL - HEL
$ 450
Kiwi
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How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Helsinki (HEL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.