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$354+ Cheap flights from Chicago (CHI) 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — HEL
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Helsinki-Vantaa are usually found in November or February, booked 87 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Chicago to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$496
(oojo)

One-way from

$354
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$623

Good round-trip deal

$708 or less

Good one-way deal

$521 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 Chicago (CHI) to Helsinki-Vantaa
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One-way flight from Chicago (CHI) to Helsinki-Vantaa
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Highest demand for flights based on searches. 26% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 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 Chicago (CHI) to Helsinki-Vantaa.
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Price to beat on a one-way flight from Chicago (CHI) to Helsinki-Vantaa.
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Find flight deals from Chicago to Helsinki

Cheapest flights from Chicago to Helsinki
Explore the most affordable flight options available from Chicago to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This oojo deal was found by Cheapflights users on 4/23. 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.
Sat 9/277:15 pmORD - HEL
1 stop31h 20mScandinavian Airlines
Sat 10/119:00 pmHEL - ORD
1 stop27h 10mScandinavian Airlines
Deal found 4/23$496
This FlightHub deal was found by Cheapflights users on 4/22. 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 9/2711:45 pmORD - HEL
1 stop27h 55mTurkish Airlines
Sat 10/1112:35 pmHEL - ORD
1 stop17h 25mTurkish Airlines
Deal found 4/22$583
This oojo deal was found by Cheapflights users on 4/24. 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
1 stop31h 45mIcelandair
Wed 8/203:00 pmHEL - ORD
1 stop11h 15mIcelandair
Deal found 4/24$651
This Flightnetwork deal was found by Cheapflights users on 4/23. 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 4/289:30 pmORD - HEL
Nonstop8h 45mFinnair
Tue 5/134:25 pmHEL - ORD
Nonstop9h 25mFinnair
Deal found 4/23$659
This Ticket deal was found by Cheapflights users on 4/23. 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 4/285:10 pmORD - HEL
1 stop22h 10mMultiple Airlines
Tue 5/137:00 amHEL - ORD
1 stop15h 10mMultiple Airlines
Deal found 4/23$673
This Ticket deal was found by Cheapflights users on 4/23. 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 4/281:50 pmORD - HEL
2 stops15h 10mKLM
Tue 5/137:00 amHEL - ORD
2 stops15h 28mKLM
Deal found 4/23$703
This American Airlines deal was found by Cheapflights users on 4/23. 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 5/712:09 pmORD - HEL
1 stop14h 36mAmerican Airlines
Wed 5/144:25 pmHEL - ORD
Nonstop9h 25mAmerican Airlines
Deal found 4/23$704
This Delta deal was found by Cheapflights users on 4/23. 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.
Mon 4/285:10 pmORD - HEL
1 stop15h 30mDelta
Tue 5/137:15 amHEL - ORD
2 stops18h 14mDelta
Deal found 4/23$712
This United Airlines deal was found by Cheapflights users on 4/23. 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 stop12h 20mUnited Airlines
Wed 8/201:35 pmHEL - ORD
2 stops31h 15mUnited Airlines
Deal found 4/23$740
This oojo deal was found by Cheapflights users on 4/23. 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.
Fri 11/215:00 pmORD - HEL
2 stops22h 15mBritish Airways
Fri 11/287:50 amHEL - ORD
2 stops19h 30mBritish Airways
Deal found 4/23$766
This Delta deal was found by Cheapflights users on 4/23. 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.
Sun 9/216:50 pmMDW - HEL
2 stops14h 50mDelta
Tue 9/307:00 amHEL - MDW
2 stops19h 36mDelta
Deal found 4/23$824
This Gotogate deal was found by Cheapflights users on 4/23. 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 4/2811:30 amORD - HEL
2 stops17h 20mAir Canada
Tue 5/131:35 pmHEL - ORD
2 stops26h 28mAir Canada
Deal found 4/23$856

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 24, 2025.
Use the filters below to find and compare flights from Chicago to Helsinki that are best for you.

Fly from

Chicago

Fly to

Helsinki

Route

Depart

Return

Price

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

9:30 pm-2:15 pm

Nonstop8h 45m

Helsinki-Vantaa

Tue 5/13

4:25 pm-5:50 pm

Nonstop9h 25m

$659

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

5:10 pm-11:20 pm

1 stop22h 10m

Helsinki-Vantaa

Tue 5/13

7:00 am-2:10 pm

1 stop15h 10m

$673

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

1:50 pm-1:00 pm

2 stops15h 10m

Helsinki-Vantaa

Tue 5/13

7:00 am-2:28 pm

2 stops15h 28m

$703

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Wed 5/7

12:09 pm-10:45 am

1 stop14h 36m

Helsinki-Vantaa

Wed 5/14

4:25 pm-5:50 pm

Nonstop9h 25m

$704

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

11:25 am-11:40 am

1 stop16h 15m

Helsinki-Vantaa

Tue 5/13

7:35 pm-9:40 am

1 stop22h 05m

$710

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

5:10 pm-4:40 pm

1 stop15h 30m

Helsinki-Vantaa

Tue 5/13

7:15 am-5:29 pm

2 stops18h 14m

$712

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Fri 5/9

8:15 pm-8:15 pm

1 stop16h 00m

Helsinki-Vantaa

Sun 5/18

9:00 pm-6:25 pm

1 stop29h 25m

$773

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

9:30 pm-2:15 pm

Nonstop8h 45m

Helsinki-Vantaa

Tue 5/13

9:05 pm-11:45 am

1 stop22h 40m

$783

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

11:30 am-12:50 pm

2 stops17h 20m

Helsinki-Vantaa

Tue 5/13

1:35 pm-8:03 am

2 stops26h 28m

$856

ChicagoHelsinki

ORD - HEL

ORDHEL

Chicago O'Hare Intl

Mon 4/28

9:30 pm-2:15 pm

Nonstop8h 45m

Helsinki-Vantaa

Tue 5/13

4:25 pm-5:50 pm

Nonstop9h 25m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 30 results
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Compare providers for flights from Chicago to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Helsinki in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Helsinki flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Helsinki flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Helsinki flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Helsinki

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

How far ahead should I book a flight from Chicago to Helsinki?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Helsinki. Price data was last updated on April 18, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Helsinki, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Chicago to Helsinki (average of $444). Flying from Chicago to Helsinki 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 CHI to HEL?

Find hourly flight availability from Chicago 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 24, 2025.

It’s optimal to fly from Chicago to Helsinki in the afternoon. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from Chicago to Helsinki

Explore weekly flight availability from Chicago 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 24, 2025.

The most flights from CHI 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 24, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Chicago to Helsinki. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
1,333 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
1,442 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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 Chicago 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 Chicago?

    Helsinki-Vantaa (HEL), located 10.6 mi from the city center, is the airport you fly into when you book flights from Chicago to Helsinki. 6 airlines have flights to Helsinki-Vantaa from Chicago on a regular basis. Booking flights from Chicago to Helsinki-Vantaa should not be difficult; the airport handles an average of 5 inbound flights from Chicago per day.

  • What are the cheapest airlines flying from Chicago to Helsinki round-trip?

    According to our current data, Scandinavian Airlines ($496), Turkish Airlines ($583), and Icelandair ($651) offers the cheapest pricing from Chicago to Helsinki. Scandinavian Airlines is currently priced 31% below the average price you’ll pay for this route.

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

    $486 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $493 and $507, respectively.

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

    Before booking your flight to Helsinki from Chicago, check out the most reliable airlines to get you to your destination on time: American Airlines (88%), Alaska Airlines (88%), Finnair( 88%).

  • What are the cheapest flights from Chicago to Helsinki?

    While on average a flight from Chicago to Helsinki is generally $1,749, our data shows the cheapest flight currently is $466. When looking at the most popular route, (Chicago O'Hare Intl - Helsinki-Vantaa), you can expect to pay $576 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Chicago to Helsinki (average of $444). Flying from Chicago to Helsinki 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

Traveling to a place near Chicago?

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

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Alternative routes for Chicago to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Helsinki flights
Midway to Helsinki flights
O'Hare Intl to Rovaniemi flights
St. Louis to Helsinki flights
O'Hare Intl to Kemi flights
Bloomington to Helsinki flights

Top 6 airlines flying from Chicago to Helsinki

Discover the top 6 airlines that operate flights from Chicago 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$393Average$605FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$466Average$685FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$579Average$860FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$588Average$1,015FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$612Average$935FlexibilityNo cancel feeOn-time69%
FinnairCheapest$644Average$961FlexibilityNo cancel feeOn-time76%

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