HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Finland

$351+ Cheap flights from Illinois to Finland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HEL
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Finland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Finland

Keep the following information in mind while searching for Illinois to Finland flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$588
(Scandinavian Airlines)

One-way from

$351
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$609

Good round-trip deal

$712 or less

Good one-way deal

$435 or less
Provider with most accurate pricing for Chicago (CHI)-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Helsinki-Vantaa flights.
Search Deals
From Illinois to Finland
Search Deals
One-way flight from Illinois to Finland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Finland.
Search Deals
Price to beat on a one-way flight from Illinois to Finland.
Search Deals

Find flight deals from Illinois to Finland

Cheapest flights from Illinois to Finland
Explore the most affordable flight options available from Illinois to Finland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This oojo deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:15 pmORD - HEL
1 stop12h 10mScandinavian Airlines
Mon 9/89:00 pmHEL - ORD
1 stop27h 10mScandinavian Airlines
Deal found 4/2$535
This oojo deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/511:25 amORD - HEL
1 stop23h 15mTurkish Airlines
Thu 5/1512:35 pmHEL - ORD
1 stop29h 05mTurkish Airlines
Deal found 4/2$596
This Finnair deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1711:21 amSTL - HEL
1 stop15h 24mMultiple Airlines
Fri 5/24:50 pmHEL - STL
1 stop24h 11mMultiple Airlines
Deal found 4/2$614
This Flightnetwork deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/79:30 pmORD - HEL
Nonstop8h 45mFinnair
Mon 4/214:25 pmHEL - ORD
Nonstop9h 25mFinnair
Deal found 4/1$640
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1711:15 amSTL - HEL
2 stops21h 25mDelta
Fri 5/27:00 amHEL - STL
2 stops21h 39mDelta
Deal found 4/2$659
This Booking.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/69:30 pmORD - HEL
Nonstop8h 45mBritish Airways
Tue 4/224:25 pmHEL - ORD
Nonstop9h 25mBritish Airways
Deal found 4/1$672
This Iberia deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/69:30 pmORD - HEL
Nonstop8h 45mIberia
Tue 4/224:25 pmHEL - ORD
Nonstop9h 25mIberia
Deal found 4/2$674
This American Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:45 pmORD - HEL
1 stop14h 15mAmerican Airlines
Tue 5/134:25 pmHEL - ORD
Nonstop9h 25mAmerican Airlines
Deal found 4/2$684
This Ticket deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/75:10 pmORD - HEL
1 stop15h 30mAir France
Mon 4/216:25 pmHEL - ORD
1 stop28h 15mAir France
Deal found 4/1$689
This Scandinavian Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/139:35 amORD - HEL
3 stops19h 15mMultiple Airlines
Mon 5/1910:20 amHEL - ORD
2 stops13h 50mMultiple Airlines
Deal found 4/1$697
This American Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/177:04 amSTL - HEL
1 stop19h 41mAmerican Airlines
Fri 5/212:35 pmHEL - STL
2 stops17h 37mAmerican Airlines
Deal found 4/2$730
This oojo deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/610:15 pmORD - HEL
2 stops13h 20mIcelandair
Wed 8/2012:10 pmHEL - ORD
2 stops17h 05mIcelandair
Deal found 4/2$745

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2025.
Use the filters below to find and compare flights from Illinois to Finland that are best for you.

Fly from

Illinois

Fly to

Finland

Route

Depart

Return

Price

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 8/25

7:15 pm-3:25 pm

1 stop12h 10m

Helsinki-Vantaa

Mon 9/8

9:00 pm-4:10 pm

1 stop27h 10m

$535

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 5/5

11:25 am-6:40 pm

1 stop23h 15m

Helsinki-Vantaa

Thu 5/15

12:35 pm-9:40 am

1 stop29h 05m

$596

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 4/17

11:21 am-10:45 am

1 stop15h 24m

Helsinki-Vantaa

Fri 5/2

4:50 pm-9:01 am

1 stop24h 11m

$614

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 4/17

11:15 am-4:40 pm

2 stops21h 25m

Helsinki-Vantaa

Fri 5/2

7:00 am-8:39 pm

2 stops21h 39m

$659

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/21

9:30 pm-2:15 pm

Nonstop8h 45m

Helsinki-Vantaa

Mon 4/28

4:25 pm-5:50 pm

Nonstop9h 25m

$662

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 5/5

4:45 pm-3:00 pm

1 stop14h 15m

Helsinki-Vantaa

Tue 5/13

4:25 pm-5:50 pm

Nonstop9h 25m

$684

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Tue 5/13

9:35 am-8:15 pm

2 stops26h 40m

Helsinki-Vantaa

Mon 5/19

10:20 am-4:10 pm

2 stops13h 50m

$691

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 5/5

5:10 pm-4:40 pm

1 stop15h 30m

Helsinki-Vantaa

Tue 5/13

7:15 am-5:29 pm

2 stops18h 14m

$709

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Thu 4/17

7:04 am-10:45 am

1 stop19h 41m

Helsinki-Vantaa

Fri 5/2

12:35 pm-10:12 pm

2 stops17h 37m

$730

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 8/6

10:15 pm-7:35 pm

2 stops13h 20m

Helsinki-Vantaa

Wed 8/20

12:10 pm-9:15 pm

2 stops17h 05m

$745

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight from Illinois to Finland

Have a flexible travel schedule? Discover the best time to fly to Finland from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Finland

What is the cheapest month to book a flight from Illinois to Finland?

Currently, November is the cheapest month in which you can book a flight from Illinois to Finland (average of $444). Flying from Illinois to Finland in June is currently the most expensive (average of $1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to FI?

Find hourly flight availability from Illinois to Finland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Finland as you normally would.

Weekly flight availability from Illinois to Finland

Explore weekly flight availability from Illinois to Finland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 2, 2025.

The most flights from USIL to FI0 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Finland by month

Plan your trip to Finland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Finland ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Finland when rainfall is around 1.2 in.

Temperature in Finland by month

Plan your trip to Finland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Finland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Finland

Get insights into the airlines that provide service to Finland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Finland. Reviews last updated April 2, 2025.
Read through reviews of airlines operating flights from Illinois to Finland, such as Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,427 reviews
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,616 reviews
Delta
8.0
Very good
7,898 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Finland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Finland one-way?

    The cheapest airlines for a one-way flight from Illinois to Finland are Icelandair ($479), Iberia ($538), and British Airways ($542).

  • Can I find deals for flights from Illinois to Finland that include hotel bookings?

    Yes. In addition to deals on Illinois to Finland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Finland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Finland.

  • Can I find deals for business class flights from Illinois to Finland?

    Yes. Cheapflights offers flight deals from Illinois to Finland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Finland?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Finland (average of $444). Flying from Illinois to Finland in June is currently the most expensive (average of $1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Finland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
John F Kennedy Intl to Gatwick flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Leonardo da Vinci/Fiumicino flights
Newark to Athens flights
John F Kennedy Intl to Athens flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to London City flights
Boston to Heathrow flights
John F Kennedy Intl to Istanbul flights
Dulles Intl to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Orly flights
Newark to Barcelona-El Prat flights
O'Hare Intl to Heathrow flights
Newark to Orly flights
John F Kennedy Intl to Malpensa flights
John F Kennedy Intl to Madrid flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Charles de Gaulle flights
Miami to Madrid flights
San Francisco to Heathrow flights
John F Kennedy Intl to Dublin flights
O'Hare Intl to Charles de Gaulle flights
Dulles Intl to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
Newark to Madrid flights
O'Hare Intl to Athens flights
Newark to Malpensa flights
Boston to Charles de Gaulle flights
Newark to London City flights
Newark to Dublin flights
Seattle to Heathrow flights
Baltimore to Heathrow flights
Stewart to Charles de Gaulle flights
Boston to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Frederic Chopin flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Boston to Dublin flights
Boston to Gatwick flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Stewart to Stansted flights
Newark to Frankfurt flights

Top 6 airlines flying from Illinois to Finland

Discover the top 6 airlines that operate flights from Illinois to Finland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$393Average$617FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$466Average$707FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$543Average$860FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$576Average$1,035FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$612Average$935FlexibilityNo cancel feeOn-time69%
FinnairCheapest$630Average$982FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.