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Cheap flights from St. Louis to Helsinki from $614

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Helsinki departing on 4/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Helsinki.
 Logo
9:41 am - 10:45 amSTL-HEL
17h 04m1 stop
 Logo
4:50 pm - 9:01 amHEL-STL
24h 11m1 stop
qui, abr 17 - sex, mai 2
 Logo
7:04 am - 10:45 amSTL-HEL
19h 41m1 stop
 Logo
4:50 pm - 9:01 amHEL-STL
24h 11m1 stop
qui, abr 17 - sex, mai 2
Delta Logo
11:15 am - 4:40 pmSTL-HEL
21h 25m2 stops
Delta Logo
7:00 am - 9:36 pmHEL-STL
22h 36m2 stops
$659Delta
Find Deal
qui, abr 17 - sex, mai 2
American Airlines Logo
11:21 am - 10:45 amSTL-HEL
15h 24m1 stop
American Airlines Logo
12:35 pm - 10:12 pmHEL-STL
17h 37m2 stops
$730American Airlines
Find Deal
qui, abr 17 - sex, mai 2
United Airlines Logo
6:30 am - 6:55 pmSTL-HEL
28h 25m2 stops
United Airlines Logo
6:10 am - 1:30 pmHEL-STL
15h 20m1 stop
$785United Airlines
Find Deal
qui, abr 17 - sex, mai 2
United Airlines Logo
9:40 am - 6:55 pmSTL-HEL
25h 15m2 stops
United Airlines Logo
6:05 am - 7:37 pmHEL-STL
21h 32m2 stops
$852United Airlines
Find Deal
sáb, mai 17 - sáb, mai 24
Finnair Logo
10:36 am - 10:45 amSTL-HEL
16h 09m1 stop
Finnair Logo
12:35 pm - 6:21 pmHEL-STL
13h 46m1 stop
$923Finnair
Find Deal
sáb, mai 17 - sáb, mai 24
American Airlines Logo
9:29 am - 10:45 amSTL-HEL
17h 16m1 stop
American Airlines Logo
12:35 pm - 6:21 pmHEL-STL
13h 46m1 stop
$934American Airlines
Find Deal
sex, mai 16 - sáb, mai 24
Air Canada Logo
7:30 am - 6:55 pmSTL-HEL
27h 25m2 stops
Air Canada Logo
6:05 am - 7:58 pmHEL-STL
45h 53m2 stops
$943Air Canada
Find Deal
sex, mai 16 - sáb, mai 24
British Airways Logo
1:21 pm - 5:50 pmSTL-HEL
20h 29m2 stops
British Airways Logo
8:00 am - 8:30 pmHEL-STL
20h 30m2 stops
$1,087British Airways
Find Deal
dom, jun 15 - sáb, jun 28

American Airlines flights from St. Louis to Helsinki

Our best American Airlines deals on St. Louis to Helsinki flight tickets
American Airlines
Apr 17
STL11:21 amLambert-St Louis
15h 24m
1 stop
HEL10:45 amHelsinki-Vantaa
May 2
HEL12:35 pmHelsinki-Vantaa
17h 37m
2 stops
STL10:12 pmLambert-St Louis
American Airlines
May 16
STL9:29 amLambert-St Louis
17h 16m
1 stop
HEL10:45 amHelsinki-Vantaa
May 24
HEL12:35 pmHelsinki-Vantaa
13h 46m
1 stop
STL6:21 pmLambert-St Louis
American Airlines
Jun 15
STL1:21 pmLambert-St Louis
16h 54m
1 stop
HEL2:15 pmHelsinki-Vantaa
Jun 28
HEL4:00 pmHelsinki-Vantaa
15h 54m
1 stop
STL11:54 pmLambert-St Louis

United Airlines flights from St. Louis to Helsinki

Our best United Airlines deals on St. Louis to Helsinki flight tickets
United Airlines
Apr 17
STL6:30 amLambert-St Louis
28h 25m
2 stops
HEL6:55 pmHelsinki-Vantaa
May 2
HEL6:10 amHelsinki-Vantaa
15h 20m
1 stop
STL1:30 pmLambert-St Louis
United Airlines
May 17
STL9:40 amLambert-St Louis
25h 15m
2 stops
HEL6:55 pmHelsinki-Vantaa
May 24
HEL6:05 amHelsinki-Vantaa
21h 32m
2 stops
STL7:37 pmLambert-St Louis

See travel insights to Helsinki from

How to get the cheapest flight ticket from St. Louis to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Helsinki?

What is the cheapest month to fly to Helsinki?

The month of November is, on average, the cheapest month to fly to Helsinki from St. Louis, with most prices found around $507. If you aren’t able to travel during the month of November, then book flights to Helsinki from St. Louis during March instead. Flights to Helsinki in March, while not as cheap as those in November, still average around $576.

What is the cheapest day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Tuesday when prices can be found for as low as $511. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Helsinki on a Wednesday will generally be more expensive and average around $1,482. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is in the morning. momondo users have found flights departing from St. Louis to Helsinki in the morning for as low as $706. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,476 per ticket.

When to book flights from St. Louis to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Helsinki (STL to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Helsinki

Best Price Found

$614

Fastest flight time

15h 24m

Direct flights

None

Airports in Helsinki

1 airport
The best flight deal from St. Louis to Helsinki found on momondo in the last 72 hours is $614
The fastest flight from St. Louis to Helsinki takes 15h 24m
There are no direct flights from St. Louis to Helsinki. Popular non-direct route for this connection is Lambert-St Louis Airport - Helsinki-Vantaa Airport.
There is 1 airport near Helsinki: Helsinki-Vantaa (HEL)

  • How far is Lambert-St Louis to Helsinki-Vantaa by plane?

    The distance between Lambert-St Louis and Helsinki-Vantaa is about 4687.3 mi. 15h 24m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Helsinki-Vantaa Airport?

    Prices for flights from Lambert-St Louis Airport to Helsinki-Vantaa Airport refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Helsinki-Vantaa Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The necessary travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Helsinki?


Best airlines flying from St. Louis to Helsinki

Compare and see reviews for airlines that fly from St. Louis to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $479Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $500Free CancellationRating
6.6
6,718 reviews
Search British Airways flights
LufthansaPriceFrom $533Free CancellationRating
6.7
6,964 reviews
Search Lufthansa flights
United AirlinesPriceFrom $576Free CancellationRating
7.4
8,619 reviews
Search United Airlines flights

Traveling to a place near Helsinki?

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Helsinki?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Helsinki. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Helsinki with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Helsinki from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Helsinki?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Helsinki.

I’m not ready to book a flight from St. Louis to Helsinki right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Helsinki flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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