Cheap flights from Illinois to Helsinki from $308

The month of February is, on average, the cheapest month to fly to Helsinki from Illinois, with most prices found around $461. If you aren’t able to travel during the month of February, then book flights to Helsinki from Illinois during January instead. Flights to Helsinki in January, while not as cheap as those in February, still average around $518.

The cheapest day to depart on your flight to Helsinki is on a Sunday when prices can be found for as low as $779. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Helsinki on a Friday will generally be more expensive and average around $1,115. 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 Illinois - Helsinki-Vantaa flight prices

You are more likely to see cheaper flights to Helsinki from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $779 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Illinois for as low as $659 on momondo.

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

You could potentially save up to 32% on your flight if you consider stops on a Illinois to Helsinki flight.

Delta, Finnair, and Scandinavian Airlines are the most popular carriers operating from Illinois to Helsinki-Vantaa

Icelandair, Scandinavian Airlines and Finnair are the top three most popular airlines that fly to Helsinki from Illinois according to our data. Icelandair is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 6 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

As of August 2026, 3 flights take off from Illinois and land in Helsinki each day. The most common flight departure time for this route is 9:00PM, with 100% of daily flights taking off in the evening.

As of August 2026, 25 flights take off from Illinois and land in Helsinki each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.