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Cheap flights from Illinois to Finland from $298

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Finland departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Finland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
11:25 am - 11:10 am
ORD
-
HEL
15h 45m
1 stop
Turkish Airlines Logo
8:20 am - 9:40 am
HEL
-
ORD
33h 20m
1 stop
$530Turkish Airlines
Mon, Apr 13 - Thu, Apr 23
Turkish Airlines Logo
11:25 am - 11:10 am
ORD
-
HEL
15h 45m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
HEL
-
ORD
29h 35m
1 stop
$533Turkish Airlines
Tue, Apr 28 - Wed, May 6
Turkish Airlines Logo
8:10 pm - 11:10 am
ORD
-
HEL
31h 00m
1 stop
Turkish Airlines Logo
7:35 pm - 9:40 am
HEL
-
ORD
22h 05m
1 stop
$542Turkish Airlines
Thu, Apr 23 - Thu, Apr 30
Scandinavian Airlines Logo
3:42 pm - 1:30 am
STL
-
HEL
25h 48m
2 stops
Scandinavian Airlines Logo
4:00 pm - 11:37 pm
HEL
-
STL
39h 37m
2 stops
$734Scandinavian Airlines
Mon, Aug 24 - Sun, Aug 30
American Airlines Logo
12:27 pm - 10:45 am
STL
-
HEL
14h 18m
1 stop
American Airlines Logo
4:25 pm - 11:47 am
HEL
-
STL
27h 22m
1 stop
$777American Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
10:14 am - 10:45 am
STL
-
HEL
16h 31m
1 stop
Multiple Airlines Logo
4:25 pm - 11:51 pm
HEL
-
STL
15h 26m
1 stop
$790Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Delta Logo
1:24 pm - 4:40 pm
MDW
-
HEL
19h 16m
2 stops
Delta Logo
7:00 am - 4:26 pm
HEL
-
MDW
17h 26m
2 stops
$835Delta
Tue, Apr 28 - Wed, May 6
American Airlines Logo
12:27 pm - 10:45 am
STL
-
HEL
14h 18m
1 stop
American Airlines Logo
4:25 pm - 11:56 pm
HEL
-
STL
15h 31m
1 stop
$837American Airlines
Fri, May 8 - Fri, May 15
Multiple Airlines Logo
10:14 am - 10:45 am
STL
-
HEL
16h 31m
1 stop
Multiple Airlines Logo
4:25 pm - 11:51 pm
HEL
-
STL
15h 26m
1 stop
$840Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Delta Logo
9:27 am - 1:05 pm
MDW
-
HEL
19h 38m
2 stops
Delta Logo
7:00 am - 6:33 pm
HEL
-
MDW
19h 33m
2 stops
$865Delta
Sun, May 3 - Tue, May 19

Icelandair flights from Illinois to Finland

Our best Icelandair deals on Illinois to Finland flight tickets
Icelandair
Apr 10
ORD10:25 pmChicago O'Hare Intl
31h 35m
1 stop
HEL2:00 pmHelsinki-Vantaa
Apr 16
HEL3:00 pmHelsinki-Vantaa
11h 15m
1 stop
ORD6:15 pmChicago O'Hare Intl
$637
Icelandair
Apr 11
ORD7:25 pmChicago O'Hare Intl
10h 35m
1 stop
HEL2:00 pmHelsinki-Vantaa
Apr 15
HEL3:00 pmHelsinki-Vantaa
11h 15m
1 stop
ORD6:15 pmChicago O'Hare Intl
$640
Icelandair
Apr 19
ORD10:25 pmChicago O'Hare Intl
31h 35m
1 stop
HEL2:00 pmHelsinki-Vantaa
Apr 27
HEL3:00 pmHelsinki-Vantaa
11h 15m
1 stop
ORD6:15 pmChicago O'Hare Intl
$641

Finnair flights from Illinois to Finland

Our best Finnair deals on Illinois to Finland flight tickets
Finnair
Apr 6
STL6:33 pmLambert-St Louis
11h 42m
1 stop
HEL2:15 pmHelsinki-Vantaa
Apr 15
HEL4:25 pmHelsinki-Vantaa
13h 52m
1 stop
STL10:17 pmLambert-St Louis
$875
Finnair
Apr 4
ORD9:30 pmChicago O'Hare Intl
8h 45m
HEL2:15 pmHelsinki-Vantaa
Apr 13
HEL4:25 pmHelsinki-Vantaa
9h 25m
ORD5:50 pmChicago O'Hare Intl
$920
Finnair
Apr 6
STL6:33 pmLambert-St Louis
11h 42m
1 stop
HEL2:15 pmHelsinki-Vantaa
Apr 15
HEL7:40 amHelsinki-Vantaa
19h 50m
2 stops
STL7:30 pmLambert-St Louis
$950

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Finland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 28, 2026.
Use the filters below to find and compare flights from Illinois to Finland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/13

11:25 am-11:10 am

1 stop15h 45m

Helsinki-Vantaa

Thu 4/23

8:20 am-9:40 am

1 stop33h 20m

$530

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Tue 4/28

11:25 am-11:10 am

1 stop15h 45m

Helsinki-Vantaa

Wed 5/6

12:05 pm-9:40 am

1 stop29h 35m

$533

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Thu 4/23

8:10 pm-11:10 am

1 stop31h 00m

Helsinki-Vantaa

Thu 4/30

7:35 pm-9:40 am

1 stop22h 05m

$542

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Mon 8/24

3:42 pm-1:30 am

2 stops25h 48m

Helsinki-Vantaa

Sun 8/30

4:00 pm-11:37 pm

2 stops39h 37m

$734

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 5/7

12:27 pm-10:45 am

1 stop14h 18m

Helsinki-Vantaa

Thu 5/14

4:25 pm-11:47 am

1 stop27h 22m

$777

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Mon 8/24

10:14 am-10:45 am

1 stop16h 31m

Helsinki-Vantaa

Sun 8/30

4:25 pm-11:51 pm

1 stop15h 26m

$790

ChicagoHelsinki

MDW - HEL

MDWHEL

Chicago Midway

Tue 4/28

1:24 pm-4:40 pm

2 stops19h 16m

Helsinki-Vantaa

Wed 5/6

7:00 am-4:26 pm

2 stops17h 26m

$835
Quickest round-trip

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 5/8

12:27 pm-10:45 am

1 stop14h 18m

Helsinki-Vantaa

Fri 5/15

4:25 pm-11:56 pm

1 stop15h 31m

$837

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Mon 8/24

10:14 am-10:45 am

1 stop16h 31m

Helsinki-Vantaa

Sun 8/30

4:25 pm-11:51 pm

1 stop15h 26m

$840

ChicagoHelsinki

MDW - HEL

MDWHEL

Chicago Midway

Sun 5/3

9:27 am-1:05 pm

2 stops19h 38m

Helsinki-Vantaa

Tue 5/19

7:00 am-6:33 pm

2 stops19h 33m

$865

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Finland from

How to get the cheapest flight ticket from Illinois to Finland

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 cheapest month to fly to Finland?

If you don’t want to visit Finland in February, then you should wait until March to fly from Illinois, when ticket prices are also cheap, with an average price of $498.

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

The cheapest day to depart from Illinois to Finland is on a Tuesday. Travelers who choose to depart for Finland on a Tuesday will often find tickets for as low as $730. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Finland on Saturday is $918.

What is the cheapest Illinois to Finland flight route?

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

How far in advance should I book a flight to Finland?

You are more likely to see cheaper flights to Finland from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Finland for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Finland from Illinois for as low as $489 on momondo.

What cabin class options are available on Illinois to Finland flights?

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

Can stopping save me money on Illinois to Finland flights?

No. A direct flight is the cheapest option for a flight between Illinois to Finland.

Cheap Illinois to Finland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Finland

Best Price Found

$358

Fastest flight time

8h 45m

Direct flights

Every day

Airports in Finland

28 airports
The best one-way flight to Finland from Illinois in the past 72 hours is $358. The best round-trip flight deal from Illinois to Finland found on momondo in the last 72 hours is $724.
The fastest flight from Illinois to Finland takes 8h 45m
Direct flights go from Illinois to Finland every day.
There are 28 airports in Finland. From Illinois there are direct flights to Helsinki-Vantaa (HEL).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Finland?

    Prices for flights from Illinois to Finland were last updated today.

  • How many operators does momondo search for flights from Illinois to Finland?

  • How old do you have to be to fly from Illinois to Finland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Finland.

  • What documentation or ID do you need to fly to Finland?

    The travel and health documents required for your trip to Finland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Finland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Illinois to Finland?

Best airlines flying from Illinois to Finland

Compare and see reviews for airlines that fly from Illinois to Finland with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $419Free CancellationRating
7.0
627 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $428Free CancellationRating
7.3
1,725 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $518Free CancellationRating
6.8
7,871 reviews
Search Lufthansa flights
FinnairPriceFrom $664Free CancellationRating
7.7
1,374 reviews
Search Finnair flights
American AirlinesPriceFrom $681Free CancellationRating
7.1
11,519 reviews
Search American Airlines flights
United AirlinesPriceFrom $815Free CancellationRating
7.4
9,499 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Finland?

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

Can I find flights from Illinois to Finland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Finland from Illinois with this policy.

How can momondo help me find flights from Illinois to Finland?

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 Illinois to Finland.

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

Price alerts on flights to Finland from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Finland trip

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