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

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How to find the cheapest flight from
St. Louis (STL) to Helsinki (HEL)

All the information you need to plan the best STL to HEL flight in 2022: compare St. Louis to Helsinki flight prices with the expected peak season, weather and rainfall in Helsinki.
What is the cheapest day to fly round-trip from St. Louis to Helsinki?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 160% on your flight compared to booking on days when demand is much higher.

When is the cheapest time to fly from St. Louis to Helsinki (STL - HEL)?

It’s typically best to fly out from St. Louis to Helsinki in the afternoon. Doing so could potentially save you 39% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest month to fly from St. Louis to Helsinki?

The best pricing can be found in the month of October. Prices to Helsinki from St. Louis average $791. You can even find prices in October for less than $791, as users have found deals to Helsinki from as low as $279. The month of June appears to be one of the more expensive times to travel to Helsinki from St. Louis. Flying in the targeted month can save you up to 142%.

Cheap flights from St. Louis to Helsinki in June, July 2022

The best prices found for STL to HEL flights for June, July
18 Jul - 2 Aug
$1,112pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
British Airways
 
1 STOP
STL
Lambert-St Louis
18 Jul - 2 Aug
$1,133pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
British Airways
   
2 STOPS
STL
Lambert-St Louis
18 Jul - 2 Aug
$1,495pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
American Airlines
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Helsinki 2022 flight deals

Cheap flights to Helsinki from St. Louis found for this year
18 Jul - 2 Aug
$1,112pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
British Airways
 
1 STOP
STL
Lambert-St Louis
18 Jul - 2 Aug
$1,133pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
British Airways
   
2 STOPS
STL
Lambert-St Louis
18 Jul - 2 Aug
$1,495pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
HEL
Helsinki-Vantaa
HEL
Helsinki-Vantaa
American Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to Helsinki-Vantaa from St. Louis

The cheapest one-way flights from St. Louis to Helsinki
7:28 am - 11:50 am
Multiple Airlines
2 Stops
20h 22m
STL - HEL
Multiple Airlines
$919
Kiwi.com
8:30 am - 8:10 am
Lufthansa
2 Stops
15h 40m
STL - HEL
Lufthansa
$997
SnapTravelAir
9:54 am - 7:10 am
Finnair
1 Stop
13h 16m
STL - HEL
Finnair
$1,288
KAYAK

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Helsinki</span> flights.

Flight FAQs

From St. Louis to Helsinki

Which airlines flying from Lambert-St Louis to Helsinki-Vantaa have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Finnair, and Delta flying from Lambert-St Louis to Helsinki-Vantaa have implemented new flexible cancellation policies.

Can I find flights from St. Louis to Helsinki for under $1,200 on Cheapflights?

Yes, there are multiple flights from St. Louis to Helsinki for under $1,200. The cheapest flight booked recently is on British Airways for just $1,112, but on average you can expect to pay $2,070.

What are the cheapest airlines flying from St. Louis to Helsinki round-trip?

British Airways, at $1,112, was found to be the cheapest airline from St. Louis to Helsinki.Alternate airlines to your destination round-trip include American Airlines and Lufthansa.

What are the cheapest airlines to fly from St. Louis to Helsinki one-way?

The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $923. However, be on the lookout for offers from American Airlines and Finnair, as they are both options that can get you from St. Louis to Helsinki for a low price.

What are the cheapest flights from St. Louis to Helsinki?

Looking at all options, your cheapest flight can be booked for $705. While the most popular route (Lambert-St Louis - Helsinki-Vantaa) can be booked for $1,112 on average our data indicates $2,085 when flying from St. Louis to Helsinki.

What are the most popular airlines that fly from St. Louis to Helsinki?

When booking a flight from St. Louis to Helsinki, you may want to consider flying on American Airlines, Finnair or Delta as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for Helsinki, Finland

Do I need a COVID test to fly to Helsinki from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Helsinki-Vantaa

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Helsinki-Vantaa.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 72 hours for Antigen (quick-test) before departing to Helsinki-Vantaa.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Helsinki-Vantaa.

Do I need a test to fly back to St. Louis from Helsinki?

Returning to Lambert-St Louis from Helsinki-Vantaa

COVID-19 testing requirements
Visitors from Helsinki-Vantaa are not required to present a negative COVID-19 PCR test or antigen result upon entering Lambert-St Louis.

Quarantine requirements
Visitors from Helsinki-Vantaa are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Helsinki, Finland

Alternative routes for St. Louis to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Helsinki

Things to know before you go - useful duration and weather info for your trip from St. Louis to Helsinki.
Today's exchange rate
$1 = €0.95
Average temperature for June in Helsinki
60.8 °F
Avg rainfall for June in Helsinki
2.0 ″

Airports servicing St. Louis

Airports servicing Helsinki

Top 3 airlines flying from Lambert-St Louis to Helsinki-Vantaa

The chart below displays the airlines Cheapflights users traveling from St. Louis to Helsinki choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Finnair
$313 $956 No cancel fee 76%
American Airlines
$340 $949 No cancel fee 71%
Delta
$548 $1,947 No cancel fee N/A
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