Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Helsinki from $257

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 Helsinki departing on 11/18. 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 Helsinki

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:10 am - 3:25 pmORD-HEL
24h 15m2 stops
Scandinavian Airlines Logo
6:15 am - 4:45 pmHEL-ORD
18h 30m1 stop
$386Scandinavian Airlines
Find Deal
Sun, Dec 7 - Sun, Dec 14
Scandinavian Airlines Logo
7:10 am - 10:40 amORD-HEL
19h 30m2 stops
Scandinavian Airlines Logo
6:15 am - 4:45 pmHEL-ORD
18h 30m1 stop
$401Scandinavian Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
Icelandair Logo
6:30 pm - 12:55 pmORD-HEL
10h 25m1 stop
Icelandair Logo
1:55 pm - 5:20 pmHEL-ORD
11h 25m1 stop
$447Icelandair
Find Deal
Sun, Nov 30 - Fri, Dec 5
Icelandair Logo
7:25 pm - 1:00 pmORD-HEL
10h 35m1 stop
Icelandair Logo
3:00 pm - 9:40 pmHEL-ORD
14h 40m1 stop
$459Icelandair
Find Deal
Sat, Mar 28 - Sun, Apr 5
Multiple Airlines Logo
6:30 pm - 7:20 pmORD-HEL
16h 50m2 stops
Multiple Airlines Logo
7:40 am - 5:20 pmHEL-ORD
17h 40m2 stops
$509Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
American Airlines Logo
5:28 am - 10:45 amSTL-HEL
22h 17m1 stop
American Airlines Logo
12:35 pm - 10:24 pmHEL-STL
17h 49m1 stop
$532American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
2:36 pm - 1:55 pmSTL-HEL
16h 19m2 stops
American Airlines Logo
12:35 pm - 6:15 pmHEL-STL
13h 40m1 stop
$536American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
Multiple Airlines Logo
6:48 am - 12:55 pmORD-HEL
22h 07m2 stops
Multiple Airlines Logo
1:55 pm - 11:08 amHEL-ORD
29h 13m3 stops
$548Multiple Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Lufthansa Logo
4:50 pm - 1:05 pmSTL-HEL
13h 15m1 stop
Lufthansa Logo
7:05 am - 7:48 pmHEL-STL
20h 43m2 stops
$553Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
4:50 pm - 1:05 pmSTL-HEL
13h 15m1 stop
Lufthansa Logo
1:50 pm - 1:30 pmHEL-STL
31h 40m1 stop
$563Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31

Scandinavian Airlines flights from Illinois to Helsinki

Our best Scandinavian Airlines deals on Illinois to Helsinki flight tickets
Scandinavian Airlines
Dec 7
ORD7:10 amChicago O'Hare Intl
24h 15m
2 stops
HEL3:25 pmHelsinki-Vantaa
Dec 14
HEL6:15 amHelsinki-Vantaa
18h 30m
1 stop
ORD4:45 pmChicago O'Hare Intl
$386
Find similar
Scandinavian Airlines
Dec 5
ORD7:10 amChicago O'Hare Intl
19h 30m
2 stops
HEL10:40 amHelsinki-Vantaa
Dec 12
HEL6:15 amHelsinki-Vantaa
18h 30m
1 stop
ORD4:45 pmChicago O'Hare Intl
$401
Find similar
Scandinavian Airlines
Nov 10
ORD7:20 pmChicago O'Hare Intl
22h 15m
1 stop
HEL1:35 amHelsinki-Vantaa
Nov 23
HEL6:15 amHelsinki-Vantaa
18h 30m
1 stop
ORD4:45 pmChicago O'Hare Intl
$404
Find similar

American Airlines flights from Illinois to Helsinki

Our best American Airlines deals on Illinois to Helsinki flight tickets
American Airlines
Mar 27
STL5:28 amLambert-St Louis
22h 17m
1 stop
HEL10:45 amHelsinki-Vantaa
Mar 31
HEL12:35 pmHelsinki-Vantaa
17h 49m
1 stop
STL10:24 pmLambert-St Louis
$532
Find similar
American Airlines
Mar 27
STL2:36 pmLambert-St Louis
16h 19m
2 stops
HEL1:55 pmHelsinki-Vantaa
Mar 31
HEL12:35 pmHelsinki-Vantaa
13h 40m
1 stop
STL6:15 pmLambert-St Louis
$536
Find similar
American Airlines
Nov 12
BMI6:10 amBloomington-Normal
20h 35m
1 stop
HEL10:45 amHelsinki-Vantaa
Nov 16
HEL7:50 amHelsinki-Vantaa
24h 09m
2 stops
BMI11:59 pmBloomington-Normal
$1,467
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Helsinki 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 November 5, 2025.
Use the filters below to find and compare flights from Illinois to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 12/7

7:10 am-3:25 pm

2 stops24h 15m

Helsinki-Vantaa

Sun 12/14

6:15 am-4:45 pm

1 stop18h 30m

$386

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Fri 12/5

7:10 am-10:40 am

2 stops19h 30m

Helsinki-Vantaa

Fri 12/12

6:15 am-4:45 pm

1 stop18h 30m

$401

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 11/30

6:30 pm-12:55 pm

1 stop10h 25m

Helsinki-Vantaa

Fri 12/5

1:55 pm-5:20 pm

1 stop11h 25m

$447

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sat 3/28

7:25 pm-1:00 pm

1 stop10h 35m

Helsinki-Vantaa

Sun 4/5

3:00 pm-9:40 pm

1 stop14h 40m

$459

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Tue 12/2

6:30 pm-7:20 pm

2 stops16h 50m

Helsinki-Vantaa

Tue 12/9

7:40 am-5:20 pm

2 stops17h 40m

$509

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 3/27

5:28 am-10:45 am

1 stop22h 17m

Helsinki-Vantaa

Tue 3/31

12:35 pm-10:24 pm

1 stop17h 49m

$532

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 3/27

2:36 pm-1:55 pm

2 stops16h 19m

Helsinki-Vantaa

Tue 3/31

12:35 pm-6:15 pm

1 stop13h 40m

$536

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 12/1

6:48 am-12:55 pm

2 stops22h 07m

Helsinki-Vantaa

Mon 12/8

1:55 pm-11:08 am

3 stops29h 13m

$548

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 3/27

4:50 pm-1:05 pm

1 stop13h 15m

Helsinki-Vantaa

Tue 3/31

7:05 am-7:48 pm

2 stops20h 43m

$553

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 3/27

4:50 pm-1:05 pm

1 stop13h 15m

Helsinki-Vantaa

Tue 3/31

1:50 pm-1:30 pm

1 stop31h 40m

$563

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Helsinki from

How to get the cheapest flight ticket from Illinois to Helsinki

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 Helsinki?

The month of November is, on average, the cheapest month to fly to Helsinki from Illinois, with most prices found around $478. If you aren’t able to travel during the month of November, then book flights to Helsinki from Illinois during February instead. Flights to Helsinki in February, while not as cheap as those in November, still average around $540.

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

The cheapest day to depart on your flight to Helsinki is on a Wednesday when prices can be found for as low as $782. 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 Saturday will generally be more expensive and average around $930. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Helsinki is in the afternoon. momondo users have found flights departing from Illinois to Helsinki in the afternoon for as low as $641. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Helsinki, so prices are often more expensive at around $852 per ticket.

What is the cheapest Illinois to Helsinki-Vantaa flight route?

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

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

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 $789 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 $602 on momondo.

What cabin class options are available on Illinois to Helsinki-Vantaa flights?

There are 3 cabin classes available to choose from on Illinois to Helsinki-Vantaa 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 Helsinki flights?

You could potentially save up to 14% on your flight if you consider stops on a Illinois to Helsinki flight.

Cheap Illinois to Helsinki flight deals and tips

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

Best Price Found

$553

Direct flights

None
The best flight deal from Illinois to Helsinki found on momondo in the last 72 hours is $553
There are no direct flights from Illinois to Helsinki. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Helsinki-Vantaa Airport.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Helsinki-Vantaa Airport?

    Prices for flights from Illinois to Helsinki-Vantaa Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Illinois to Helsinki-Vantaa Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Illinois to Helsinki

Compare and see reviews for airlines that fly from Illinois to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $409Free CancellationRating
7.4
1,560 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $445Free CancellationRating
7.1
571 reviews
Search Icelandair flights
British AirwaysPriceFrom $579Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
American AirlinesPriceFrom $603Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,555 reviews
Search Lufthansa flights
United AirlinesPriceFrom $644Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
FinnairPriceFrom $664Free CancellationRating
7.6
1,335 reviews
Search Finnair flights

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Espoo
Lahti
Kotka

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Helsinki from Illinois.

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

Yes. momondo allows you to filter the results for Illinois to Helsinki flights to just show those with flexible booking policies.

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

Once you have performed a search for Illinois to Helsinki flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Illinois to Helsinki flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Helsinki 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
Fri 12/5
Fri 12/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Finland