Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Finland from $346

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 9/20. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Finland

Cheap round-trip flights

Scandinavian Airlines Logo
7:20 pm - 11:45 pmORD-HEL
20h 25m2 stops
Scandinavian Airlines Logo
3:35 pm - 4:45 pmHEL-ORD
33h 10m2 stops
$417Scandinavian Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 11:45 pmORD-HEL
20h 25m2 stops
Scandinavian Airlines Logo
6:15 am - 4:45 pmHEL-ORD
18h 30m1 stop
$419Scandinavian Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Logo
5:11 am - 10:45 amSTL-HEL
21h 34m1 stop
Logo
12:30 pm - 8:53 amHEL-STL
27h 23m1 stop
$481
Find Deal
Sun, Oct 19 - Tue, Oct 28
American Airlines Logo
12:52 pm - 1:55 pmSTL-HEL
17h 03m2 stops
American Airlines Logo
12:30 pm - 6:23 pmHEL-STL
13h 53m1 stop
$486American Airlines
Find Deal
Wed, Dec 31 - Fri, Jan 9
United Airlines Logo
6:35 pm - 6:40 pmSTL-HEL
16h 05m2 stops
United Airlines Logo
6:55 am - 7:25 pmHEL-STL
20h 30m2 stops
$516United Airlines
Find Deal
Wed, Dec 31 - Fri, Jan 9
Iberia Logo
12:23 pm - 10:45 pmSTL-HEL
26h 22m2 stops
Iberia Logo
12:30 pm - 11:12 pmHEL-STL
17h 42m1 stop
$526Iberia
Find Deal
Mon, Oct 20 - Wed, Oct 29
American Airlines Logo
12:21 pm - 10:45 amSTL-HEL
14h 24m1 stop
American Airlines Logo
12:30 pm - 11:18 pmHEL-STL
17h 48m1 stop
$531American Airlines
Find Deal
Tue, Oct 21 - Sat, Nov 1
United Airlines Logo
3:30 pm - 12:50 pmSTL-HEL
13h 20m1 stop
United Airlines Logo
1:55 pm - 3:29 pmHEL-STL
32h 34m2 stops
$541United Airlines
Find Deal
Wed, Oct 22 - Tue, Oct 28
Iberia Logo
12:23 pm - 10:45 pmSTL-HEL
26h 22m2 stops
Iberia Logo
12:30 pm - 11:44 pmHEL-STL
18h 14m1 stop
$576Iberia
Find Deal
Mon, Oct 20 - Mon, Oct 27
Logo
4:55 pm - 5:15 pmORD-RVN
16h 20m2 stops
Logo
5:30 am - 7:15 pmRVN-ORD
21h 45m2 stops
$1,023
Find Deal
Sat, Sep 20 - Wed, Sep 24

Iberia flights from Illinois to Finland

Our best Iberia deals on Illinois to Finland flight tickets
Iberia
Oct 20
STL12:23 pmLambert-St Louis
26h 22m
2 stops
HEL10:45 pmHelsinki-Vantaa
Oct 29
HEL12:30 pmHelsinki-Vantaa
17h 42m
1 stop
STL11:12 pmLambert-St Louis
$526
Find similar
Iberia
Oct 20
STL12:23 pmLambert-St Louis
26h 22m
2 stops
HEL10:45 pmHelsinki-Vantaa
Oct 27
HEL12:30 pmHelsinki-Vantaa
18h 14m
1 stop
STL11:44 pmLambert-St Louis
$576
Find similar
Iberia
Oct 20
STL12:23 pmLambert-St Louis
26h 22m
2 stops
HEL10:45 pmHelsinki-Vantaa
Oct 26
HEL8:15 amHelsinki-Vantaa
19h 05m
2 stops
STL8:20 pmLambert-St Louis
$606
Find similar

Lufthansa flights from Illinois to Finland

Our best Lufthansa deals on Illinois to Finland flight tickets
Lufthansa
Oct 19
STL3:30 pmLambert-St Louis
17h 10m
1 stop
HEL4:40 pmHelsinki-Vantaa
Oct 29
HEL6:50 amHelsinki-Vantaa
15h 05m
1 stop
STL2:55 pmLambert-St Louis
$533
Find similar
Lufthansa
Oct 22
STL3:30 pmLambert-St Louis
17h 10m
1 stop
HEL4:40 pmHelsinki-Vantaa
Oct 29
HEL6:50 amHelsinki-Vantaa
15h 05m
1 stop
STL2:55 pmLambert-St Louis
$534
Find similar
Lufthansa
Oct 21
STL12:25 pmLambert-St Louis
15h 30m
2 stops
HEL11:55 amHelsinki-Vantaa
Oct 29
HEL6:50 amHelsinki-Vantaa
15h 05m
1 stop
STL2:55 pmLambert-St Louis
$535
Find similar

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 August 4, 2025.
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

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 12/1

7:20 pm-11:45 pm

2 stops20h 25m

Helsinki-Vantaa

Sun 12/7

3:35 pm-4:45 pm

2 stops33h 10m

$417

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 12/3

7:20 pm-11:45 pm

2 stops20h 25m

Helsinki-Vantaa

Wed 12/10

6:15 am-4:45 pm

1 stop18h 30m

$419

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Sun 10/19

5:11 am-10:45 am

1 stop21h 34m

Helsinki-Vantaa

Tue 10/28

12:30 pm-8:53 am

1 stop27h 23m

$481

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 12/31

12:52 pm-1:55 pm

2 stops17h 03m

Helsinki-Vantaa

Fri 1/9

12:30 pm-6:23 pm

1 stop13h 53m

$486

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 12/31

6:35 pm-6:40 pm

2 stops16h 05m

Helsinki-Vantaa

Fri 1/9

6:55 am-7:25 pm

2 stops20h 30m

$516

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Mon 10/20

12:23 pm-10:45 pm

2 stops26h 22m

Helsinki-Vantaa

Wed 10/29

12:30 pm-11:12 pm

1 stop17h 42m

$526

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Tue 10/21

12:21 pm-10:45 am

1 stop14h 24m

Helsinki-Vantaa

Sat 11/1

12:30 pm-11:18 pm

1 stop17h 48m

$531

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 10/22

3:30 pm-12:50 pm

1 stop13h 20m

Helsinki-Vantaa

Tue 10/28

1:55 pm-3:29 pm

2 stops32h 34m

$541

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Mon 10/20

12:23 pm-10:45 pm

2 stops26h 22m

Helsinki-Vantaa

Mon 10/27

12:30 pm-11:44 pm

1 stop18h 14m

$576

ChicagoRovaniemi

ORD - RVN

ORDRVN

Chicago O'Hare Intl

Sat 9/20

4:55 pm-5:15 pm

2 stops16h 20m

Rovaniemi

Wed 9/24

5:30 am-7:15 pm

2 stops21h 45m

$1,023

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 November, then you should wait until February to fly from Illinois, when ticket prices are also cheap, with an average price of $518.

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

The cheapest day to depart from Illinois to Finland is on a Wednesday. Travelers who choose to depart for Finland on a Wednesday will often find tickets for as low as $782. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Finland on Friday is $915.

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

The cheapest time of day to fly to Finland is in the afternoon when flights can be purchased for as low as $738. In contrast, the most expensive time of day to depart to Finland is in the morning when prices are around $947.

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 $779 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 $600 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?

You could potentially save up to 29% on your flight if you consider stops on a Illinois to Finland flight.

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

$346

Fastest flight time

8h 45m

Direct flights

Mon, Tue, Thu and Sun

Airports in Finland

2 airports
The best one-way flight to Finland from Illinois in the past 72 hours is $346. The best round-trip flight deal from Illinois to Finland found on momondo in the last 72 hours is $417.
The fastest flight from Illinois to Finland takes 8h 45m
Direct flights go from Illinois to Finland on Monday, Tuesday, Thursday and Sunday. Airlines offering direct flights are: Finnair and American Airlines.
There are 2 airports near Finland: Rovaniemi (RVN), 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
Scandinavian AirlinesPriceFrom $393Free CancellationRating
7.3
1,461 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $444Free CancellationRating
7.0
524 reviews
Search Icelandair flights
American AirlinesPriceFrom $576Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $579Free CancellationRating
6.6
7,235 reviews
Search British Airways flights
United AirlinesPriceFrom $612Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
FinnairPriceFrom $664Free CancellationRating
7.6
1,319 reviews
Search Finnair 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/9
Sat 8/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Finland

Popular cities in Finland

Popular flights according to clicks in the last 7 days on momondo
Flights to Helsinkifrom $310
Flights to Rovaniemifrom $651
Flights to Oulufrom $573
Flights to Turkufrom $398
Flights to Kittiläfrom $1,064
Flights to Tamperefrom $698
Flights to Vaasafrom $1,448
Flights to Ivalofrom $674
Flights to Kuopiofrom $740
Flights to Kuusamofrom $692
Flights to Mariehamnfrom $1,002
Flights to Jyväskyläfrom $585