$692 Find Cheap Flights from St. Louis to Finland - Compare and Save

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1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Finland

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Helsinki
12h 52m2 stops
from $692per person
Booking Insights

Price, demand and travel trends for St. Louis to Finland flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from St. Louis to Finland right now?

The cheapest fare from St. Louis to Finland in the last week was $692 round-trip, to Helsinki-Vantaa (HEL).

Which airport in Finland is the cheapest to fly to from St. Louis?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Finland are:

• Helsinki-Vantaa (HEL) from $803
• Oulu (OUL) from $952

What's the cheapest time of day to fly from St. Louis to Finland?

Data from the past 12 months shows it's cheapest to fly to Finland during the evening with average prices of $830. The morning is the most expensive time to fly, with average prices of $969.

Key details for St. Louis to Finland flights

Low season

May

Cheapest flight

$692
Beat the crowds with an average 19% drop in travelers.
Round-trip flight from St. Louis to Helsinki

Your St. Louis to Finland flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from St. Louis to Finland?

    Fares from St. Louis to Finland are around their usual level right now. A round-trip under $671 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

  • How much should I budget for a flight from St. Louis to Finland?

    Over the past 12 months, round-trip fares from St. Louis to Finland have ranged from $671 to $1,085.

  • What are the main airports serving Finland?

    Flights to Finland use two main airports, Helsinki-Vantaa (HEL) and Oulu (OUL).

  • Which cabin classes are available on flights from St. Louis to Finland?

    On flights from St. Louis to Finland you can book Economy Class, Premium Economy Class or Business Class.

  • What are some popular landmarks in Finland?

    KAYAK travelers' favorite landmarks in Finland include:

    • Helsinki Central Station Square
    • Helsingin päärautatieasema
    • Esplanadi park
    • Senate Square

Your guide to booking St. Louis to Finland flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for November when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Saturday cost about 55% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Helsinki-Vantaa (HEL) is the cheapest airport to fly into from St. Louis. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Helsinki, which is the most popular destination in Finland. From there, it's easy to continue on to other popular destinations such as Rovaniemi, Vantaa and Tampere.

Reviews of the top airlines flying from St. Louis to Finland

 
Need help choosing which airline to fly with from St. Louis to Finland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1428 reviews
7.4Comfort
8.2Crew
6.7Food
6.9Entertainment
7.6Boarding
Airline reviews

Business class should have free wi-fi. Food was horrible

4.0 OkayAnonymous, Sep 2026
Read more Finnair reviews

Business class should have free wi-fi. Food was horrible

Short comfortable flight. Like many European and US based airlines - expect a budget airline experience even on full service airlines

uneventful, good economy section, friendly staffs, good food, safe flight.

The seats are very uncomfortable. They never have tomato juice. Usually late

Finnair was not able to get our luggage on a connecting flight and there was a substantial delay of two days to obtain our lugguage. They did not communicate well, and we had to travel a significant distance to finally get our luggage. It has been a very negative experience.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

flight was excellent. The crew was very helpful. Finnair made this 10 hour flight flyby. The entertainment screens on every seat really help save the battery life of your personal devices. We were served dinner and even a light breakfast, both of which were tasty. The crew even did all they could to help one group of passengers with their child, as to keep them comfortable during the flight.

Staff in first class seemed to struggle to provide service to both sections. I didn’t get breakfast though I requested it. I only got coffee after asking the opposite side flight attendant and then could never see them to request a bottle of water.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

More options for your flight from St. Louis to Finland

Complete your trip to Finland with a hotel stay or car rental