Cheap flights from Chicago to Helsinki from $342

The month of July is, on average, the cheapest month to fly to Helsinki from Chicago, with most prices found around $60. If you aren’t able to travel during the month of July, then book flights to Helsinki from Chicago during March instead. Flights to Helsinki in March, while not as cheap as those in July, still average around $314.

The cheapest day to depart on your flight to Helsinki is on a Sunday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. Flights from Chicago to Helsinki on a Friday will generally be more expensive and average around $1,083. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Fly from Chicago O'Hare Intl to Helsinki-Vantaa for the best Chicago - Helsinki-Vantaa flight prices

You are more likely to see cheaper flights to Helsinki from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $782 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Chicago for as low as $573 on momondo.

There are 3 cabin classes available to choose from on Chicago to Helsinki flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Chicago to Helsinki.

Icelandair, Air France, and Delta are the most popular carriers operating from Chicago to Helsinki-Vantaa

Icelandair, Finnair and Scandinavian Airlines are the top three most popular airlines that fly to Helsinki from Chicago according to our data. Icelandair is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 5 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

Copenhagen (CPH) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $612.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 35m.

Reykjavik (KEF) has the shortest average layover time for this route: 0h 48m.

As of June 2026, there are 5 flights per day flying from Chicago to Helsinki. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.

As of June 2026, 35 flights take off from Chicago and land in Helsinki each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.