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$356+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HEL
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$681
(Mytrip)

One-way from

$356
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$623

Good round-trip deal

$704 or less

Good one-way deal

$523 or less
Provider with most accurate pricing for Chicago (CHI)-Helsinki-Vantaa flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Helsinki-Vantaa flights.
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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. 26% potential increase in price ($253 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. 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 5/119:08 pmORD - HEL
2 stops32h 52mMultiple Airlines
Sun 5/253:00 pmHEL - ORD
2 stops24h 27mMultiple Airlines
Deal found 4/29$681
This oojo deal was found by Cheapflights users on 4/29. 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.
Thu 11/207:20 pmORD - HEL
1 stop31h 20mScandinavian Airlines
Mon 12/16:30 amHEL - ORD
1 stop18h 15mScandinavian Airlines
Deal found 4/29$687
This Icelandair deal was found by Cheapflights users on 4/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/107:25 pmORD - HEL
1 stop10h 35mIcelandair
Tue 8/193:00 pmHEL - ORD
1 stop11h 15mIcelandair
Deal found 4/29$692
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:20 amSTL - HEL
2 stops19h 55mBritish Airways
Sat 11/152:00 pmHEL - STL
2 stops38h 16mBritish Airways
Deal found 4/28$702
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 8/123:35 pmORD - HEL
1 stop12h 20mUnited Airlines
Tue 8/261:35 pmHEL - ORD
2 stops26h 26mUnited Airlines
Deal found 4/29$709
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 11/93:45 pmSTL - HEL
1 stop13h 55mUnited Airlines
Sat 11/152:25 pmHEL - STL
2 stops33h 01mUnited Airlines
Deal found 4/29$718
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 10/2412:03 pmSTL - HEL
1 stop14h 42mAmerican Airlines
Sat 11/112:30 pmHEL - STL
1 stop17h 04mAmerican Airlines
Deal found 4/28$720
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 5/71:45 pmORD - HEL
2 stops18h 55mDelta
Wed 5/147:00 amHEL - ORD
1 stop15h 40mDelta
Deal found 4/29$722
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:45 pmSTL - HEL
1 stop17h 05mLufthansa
Sat 11/155:50 pmHEL - STL
1 stop28h 05mLufthansa
Deal found 4/29$724
This Lufthansa deal was found by Cheapflights users on 4/29. 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.
Wed 8/69:40 pmORD - HEL
1 stop18h 10mLufthansa
Mon 8/187:40 pmHEL - ORD
1 stop30h 35mLufthansa
Deal found 4/29$730
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/211:45 pmORD - HEL
1 stop27h 55mTurkish Airlines
Tue 8/1212:35 pmHEL - ORD
1 stop37h 20mTurkish Airlines
Deal found 4/29$751
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Fri 10/244:05 pmSTL - HEL
2 stops18h 50mMultiple Airlines
Sat 11/17:00 amHEL - STL
3 stops35h 27mMultiple Airlines
Deal found 4/28$762

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 April 30, 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

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 5/11

9:08 pm-2:00 pm

2 stops32h 52m

Helsinki-Vantaa

Sun 5/25

3:00 pm-7:27 am

2 stops24h 27m

$681

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 8/10

7:25 pm-2:00 pm

1 stop10h 35m

Helsinki-Vantaa

Tue 8/19

3:00 pm-6:15 pm

1 stop11h 15m

$692

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sun 8/10

7:15 pm-12:05 am

1 stop20h 50m

Helsinki-Vantaa

Mon 8/18

9:00 pm-4:10 pm

1 stop27h 10m

$707

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Tue 8/12

3:35 pm-11:55 am

1 stop12h 20m

Helsinki-Vantaa

Tue 8/26

1:35 pm-8:01 am

2 stops26h 26m

$709

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 10/24

12:03 pm-10:45 am

1 stop14h 42m

Helsinki-Vantaa

Sat 11/1

12:30 pm-10:34 pm

1 stop17h 04m

$720

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 5/12

7:00 am-10:35 am

2 stops19h 35m

Helsinki-Vantaa

Tue 5/27

6:40 am-3:00 pm

1 stop16h 20m

$724

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 8/6

9:40 pm-11:50 pm

1 stop18h 10m

Helsinki-Vantaa

Mon 8/18

7:40 pm-6:15 pm

1 stop30h 35m

$730

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Sat 10/11

8:01 pm-2:20 pm

2 stops34h 19m

Helsinki-Vantaa

Sat 10/18

9:05 pm-11:49 pm

2 stops34h 44m

$745

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Sat 8/2

11:45 pm-11:40 am

1 stop27h 55m

Helsinki-Vantaa

Tue 8/12

12:35 pm-5:55 pm

1 stop37h 20m

$751

St. LouisHelsinki

STL - HEL

STLHEL

Lambert-St Louis

Fri 10/24

4:05 pm-6:55 pm

2 stops18h 50m

Helsinki-Vantaa

Sat 11/1

7:00 am-11:27 am

3 stops35h 27m

$762

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 35 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 $1,085). 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 April 30, 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 April 30, 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 April 30, 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
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
1,446 reviews
Delta
8.0
Very good
7,929 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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 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 $367 on Icelandair. Other airlines that offer cheap prices include Lufthansa from $559 and Finnair from $586 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 (88%), Alaska Airlines (88%) or Finnair (88%) 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 $1,789, our data indicates the cheapest price to be $471. The most popular route (Chicago O'Hare Intl - Helsinki-Vantaa), is priced around $488.

  • 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 $1,085). 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$393Average$604FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$466Average$680FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$543Average$860FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$588Average$1,015FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$612Average$942FlexibilityNo cancel feeOn-time69%
FinnairCheapest$644Average$972FlexibilityNo cancel feeOn-time76%

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