$716 Find Cheap Flights from St. Louis to Helsinki - Compare and Save

In the last 5 days, the lowest price for a flight from St. Louis to Helsinki was $716 for a round-trip ticket.

Yes, you’ll need a passport to travel to Helsinki from St. Louis.

We unfortunately don’t have that data for this specific route.

oneworld is the only airline alliance operating flights between St. Louis and Helsinki.

The two airlines most popular with KAYAK users for flights from St. Louis to Helsinki are Finnair and American Airlines. With an average price for the route of $747 and an overall rating of 7.7, Finnair is the most popular choice. American Airlines is also a great choice for the route, with an average price of $764 and an overall rating of 7.1.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Helsinki.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and HEL can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.