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$348+ Cheap flights from Illinois to Helsinki (HEL)

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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HEL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Helsinki

Keep the following information in mind while searching for Illinois to Helsinki flight deals. Data was last updated June 12, 2025.

Round-trip from

$481
(Finnair)

One-way from

$348
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$992

Good round-trip deal

$621 or less

Good one-way deal

$636 or less
From Illinois to Helsinki-Vantaa
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One-way flight from Illinois to Helsinki-Vantaa
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Highest demand for flights based on searches. 22% potential increase in price ($203 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Illinois to Helsinki-Vantaa.
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Price to beat on a one-way flight from Illinois to Helsinki-Vantaa.
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Find flight deals from Illinois to Helsinki

Cheapest flights from Illinois to Helsinki
Explore the most affordable flight options available from Illinois to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Finnair deal was found by Cheapflights users on 6/12. 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.
Wed 12/35:26 amSTL - HEL
1 stop21h 19mMultiple Airlines
Tue 12/912:30 pmHEL - STL
1 stop13h 45mMultiple Airlines
Deal found 6/12$481
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 12/312:54 pmSTL - HEL
2 stops17h 01mAmerican Airlines
Tue 12/912:30 pmHEL - STL
2 stops18h 35mAmerican Airlines
Deal found 6/12$486
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:30 pmSTL - HEL
2 stops18h 10mUnited Airlines
Tue 12/97:05 amHEL - STL
3 stops23h 01mUnited Airlines
Deal found 6/12$515
This Orbitz deal was found by Cheapflights users on 6/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:59 pmSTL - HEL
2 stops38h 21mBritish Airways
Sun 9/289:05 pmHEL - STL
2 stops34h 43mBritish Airways
Deal found 6/12$604
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 8/3110:15 amORD - HEL
2 stops16h 20mScandinavian Airlines
Sun 9/711:15 amHEL - ORD
1 stop12h 55mScandinavian Airlines
Deal found 6/11$647
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1810:15 pmORD - HEL
1 stop31h 45mIcelandair
Sun 8/313:00 pmHEL - ORD
1 stop14h 15mIcelandair
Deal found 6/11$661
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/63:35 pmORD - HEL
1 stop19h 20mUnited Airlines
Wed 8/206:10 amHEL - ORD
1 stop16h 45mUnited Airlines
Deal found 6/11$669
This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:20 amORD - HEL
2 stops27h 20mAir Canada
Fri 12/126:55 amHEL - ORD
2 stops41h 12mAir Canada
Deal found 6/11$676
This Turkish Airlines deal was found by Cheapflights users on 6/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2011:25 amORD - HEL
1 stop16h 15mTurkish Airlines
Thu 8/287:35 pmHEL - ORD
1 stop22h 05mTurkish Airlines
Deal found 6/11$685
This CheapOair deal was found by Cheapflights users on 6/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:35 pmORD - HEL
1 stop30h 10mBritish Airways
Mon 12/17:35 pmHEL - ORD
1 stop31h 10mBritish Airways
Deal found 6/12$712
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:15 pmORD - HEL
2 stops15h 05mMultiple Airlines
Tue 8/197:10 amHEL - ORD
2 stops17h 00mMultiple Airlines
Deal found 6/11$713
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/183:35 pmORD - HEL
1 stop12h 15mLufthansa
Wed 8/271:35 pmHEL - ORD
1 stop14h 20mLufthansa
Deal found 6/11$714

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Illinois to Helsinki that are best for you.

Fly from

Illinois

Fly to

Helsinki

Route

Depart

Return

Price

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 12/3

5:26 am-10:45 am

1 stop21h 19m

Helsinki-Vantaa

Tue 12/9

12:30 pm-6:15 pm

1 stop13h 45m

$481

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 12/3

12:54 pm-1:55 pm

2 stops17h 01m

Helsinki-Vantaa

Tue 12/9

12:30 pm-11:05 pm

2 stops18h 35m

$486

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 12/3

4:30 pm-6:40 pm

2 stops18h 10m

Helsinki-Vantaa

Tue 12/9

7:05 am-10:06 pm

3 stops23h 01m

$515

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Wed 9/24

3:59 pm-2:20 pm

2 stops38h 21m

Helsinki-Vantaa

Sun 9/28

9:05 pm-11:48 pm

2 stops34h 43m

$604

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 8/31

10:15 am-10:35 am

2 stops16h 20m

Helsinki-Vantaa

Sun 9/7

11:15 am-4:10 pm

1 stop12h 55m

$647

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 8/18

10:15 pm-2:00 pm

1 stop31h 45m

Helsinki-Vantaa

Sun 8/31

3:00 pm-9:15 pm

1 stop14h 15m

$661

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 8/6

3:35 pm-6:55 pm

1 stop19h 20m

Helsinki-Vantaa

Wed 8/20

6:10 am-2:55 pm

1 stop16h 45m

$669

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 8/20

11:25 am-11:40 am

1 stop16h 15m

Helsinki-Vantaa

Fri 8/29

7:35 pm-9:40 am

1 stop22h 05m

$685

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 8/3

7:15 pm-6:20 pm

2 stops15h 05m

Helsinki-Vantaa

Tue 8/19

7:10 am-4:10 pm

2 stops17h 00m

$713

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 8/18

3:35 pm-11:50 am

1 stop12h 15m

Helsinki-Vantaa

Wed 8/27

1:35 pm-7:55 pm

1 stop14h 20m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 27 results
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Best time to book a flight from Illinois to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki 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 Helsinki

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Helsinki (average of $444). Flying from Illinois to Helsinki in June is currently the most expensive (average of $1,081). 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 HEL?

Find hourly flight availability from Illinois to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Weekly flight availability from Illinois to Helsinki

Explore weekly flight availability from Illinois to Helsinki. 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 June 12, 2025.

The most flights from USIL to HEL 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 Helsinki by month

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

In terms of precipitation, rainfall in Helsinki 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 Helsinki when rainfall is around 1.2 in.

Temperature in Helsinki by month

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

If weather is an important factor for your trip to Helsinki, 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 Helsinki

Get insights into the airlines that provide service to Helsinki. 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 Helsinki. Reviews last updated June 12, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Illinois to Helsinki have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Helsinki from Illinois?

    For a flight from Illinois to Helsinki, you will be flying into Helsinki-Vantaa. Helsinki-Vantaa (HEL) is just 10.6 mi from the center of the city.

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

    One-way options have recently been found by users for as low as $451 on Lufthansa. Other airlines that offer cheap prices include United Airlines from $494 and Finnair from $505 one-way.

  • What are the most popular routes from Illinois to Helsinki?

    The most popular route from Illinois to Helsinki is Chicago O'Hare Intl - Helsinki-Vantaa. You may also consider Chicago Midway - Helsinki-Vantaa or Lambert-St Louis - Helsinki-Vantaa.

  • What are the most reliable airlines from Illinois to Helsinki?

    No one likes to see their flight delayed. When booking a flight from Illinois to Helsinki consider choosing American Airlines (65%), Alaska Airlines (65%) or Finnair (65%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Helsinki?

    Looking for the cheapest flight from Illinois to Helsinki? While on average our users pay $1,758, our data indicates the cheapest price to be $384. The most popular route (Chicago O'Hare Intl - Helsinki-Vantaa), is priced around $400.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Helsinki 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 Helsinki?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Helsinki (average of $444). Flying from Illinois to Helsinki in June is currently the most expensive (average of $1,081). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Vantaa
Lahti

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Alternative routes for Illinois to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Helsinki

Discover the top 6 airlines that operate flights from Illinois to Helsinki. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$393Average$599FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$457Average$658FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$543Average$854FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$576Average$981FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$612Average$991FlexibilityNo cancel feeOn-time69%
FinnairCheapest$644Average$945FlexibilityNo cancel feeOn-time76%

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