ORD - HEL

$372 Find Cheap Flights from Chicago O'Hare Airport to Helsinki

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Helsinki departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Helsinki.
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Everything you should know

Cheapest round-trip
$689
Typical prices: $942-$809
Turkish Airlines
Tue 10/6Wed 10/14
ORD - HEL • 1 stop
Cheapest non-stop
$853
British Airways
Sun 9/20Wed 9/30
ORD - HEL • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's A350 offers higher humidity, reducing fatigue.
Economy Comfort on Finnair provides extra legroom for a fee.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $689 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Finnair. Average duration is 8h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $680 (round-trip)
Shortest trip • 12h 02m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 40% price drop
Most popular
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helsinki!
Flight Deals
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Flight Deals

Cheap Flights from O'Hare Intl to Helsinki (ORD-HEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Helsinki that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to Helsinki

Tue, Oct 6 - Wed, Oct 14
Turkish Airlines Logo
11:25 am - 11:10 am
ORD
-
HEL
15h 45m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
HEL
-
ORD
29h 35m
1 stop
$689Turkish Airlines
Thu, Sep 10 - Sun, Sep 20
Turkish Airlines Logo
11:25 am - 6:40 pm
ORD
-
HEL
23h 15m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
HEL
-
ORD
29h 35m
1 stop
$709Turkish Airlines
Fri, Oct 2 - Fri, Oct 9
Turkish Airlines Logo
8:10 pm - 11:10 am
ORD
-
HEL
31h 00m
1 stop
Turkish Airlines Logo
7:35 pm - 9:40 am
HEL
-
ORD
22h 05m
1 stop
$751Turkish Airlines
Fri, Oct 2 - Fri, Oct 9
Turkish Airlines Logo
8:10 pm - 11:10 am
ORD
-
HEL
31h 00m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
HEL
-
ORD
29h 35m
1 stop
$752Turkish Airlines
Wed, May 13 - Sun, May 17
Icelandair Logo
7:25 pm - 2:00 pm
ORD
-
HEL
10h 35m
1 stop
Icelandair Logo
3:00 pm - 9:25 pm
HEL
-
ORD
14h 25m
1 stop
$770Icelandair
Wed, May 13 - Sun, May 17
Icelandair Logo
10:25 pm - 2:00 pm
ORD
-
HEL
31h 35m
1 stop
Icelandair Logo
3:00 pm - 9:25 pm
HEL
-
ORD
14h 25m
1 stop
$771Icelandair
Sat, Oct 3 - Fri, Oct 9
Turkish Airlines Logo
8:10 pm - 11:55 pm
ORD
-
HEL
19h 45m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
HEL
-
ORD
29h 35m
1 stop
$775Turkish Airlines
Sun, Sep 20 - Wed, Sep 30
Multiple Airlines Logo
9:30 pm - 2:15 pm
ORD
-
HEL
8h 45mnonstop
Multiple Airlines Logo
9:15 pm - 6:15 pm
HEL
-
ORD
29h 00m
3 stops
$780Multiple Airlines
Sun, Oct 18 - Sun, Oct 25
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
HEL
12h 05m
1 stop
Scandinavian Airlines Logo
7:40 pm - 5:45 pm
HEL
-
ORD
29h 05m
2 stops
$792Scandinavian Airlines
Sun, Aug 9 - Tue, Aug 25
Turkish Airlines Logo
8:10 pm - 11:10 am
ORD
-
HEL
31h 00m
1 stop
Turkish Airlines Logo
12:05 pm - 6:15 pm
HEL
-
ORD
38h 10m
1 stop
$798Turkish Airlines
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Helsinki flights

Get data-powered insights and trends into flights from O'Hare Intl to Helsinki to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Helsinki?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to Helsinki departing in October.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Helsinki?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Helsinki clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Helsinki on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Chicago O'Hare Airport to Helsinki. For your return ticket, we recommend flying on a Sunday and avoiding Mondays for the best deals.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Helsinki?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Helsinki, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Helsinki is February, where tickets cost $469 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,231 and $923 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Helsinki?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Helsinki, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Helsinki, you should book around 4 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from O'Hare Intl to Helsinki

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$372
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 58% increase in price.
Flight from Chicago O'Hare Airport to Helsinki

When to book flights from O'Hare Intl to Helsinki

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Helsinki flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Helsinki?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Helsinki was $372 for a one-way ticket and $689 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Helsinki?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago O'Hare Airport and on arrival in Helsinki.

  • Which airports will I be using when flying from Chicago O'Hare Airport to Helsinki?

    When flying out of Chicago O'Hare Airport you will be using Chicago O'Hare Intl. You will be landing at Helsinki, also known as Helsinki-Vantaa.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Helsinki?

    All the following airlines offer inflight Wi-Fi service on the Chicago O'Hare Airport to Helsinki flight route: British Airways, Finnair, Iberia, American Airlines, JetBlue, Alaska Airlines, United Airlines, and SWISS.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Helsinki?

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Helsinki flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Helsinki?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Chicago O'Hare Airport and Helsinki, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago O'Hare Airport to Helsinki?

    There are nonstop flights from Chicago O'Hare Airport to Helsinki on a daily basis.

  • Which is the best airline for flights from Chicago to Helsinki, Finnair or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Helsinki are Finnair and Scandinavian Airlines. With an average price for the route of $989 and an overall rating of 7.6, Finnair is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $550 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Helsinki?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Helsinki.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Helsinki?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Helsinki?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and HEL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Helsinki?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Helsinki

  • Looking for a cheap flight? 25% of our users found flights on this route for $608 or less one-way and $1,035 or less round-trip.

Prefer to fly direct from Chicago O'Hare Airport to Helsinki?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Helsinki-Vantaa.
Find which airlines fly direct from Chicago O'Hare Intl Airport to Helsinki-Vantaa Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Helsinki-Vantaa

Monday

Finnair

Finnair

Tuesday

Finnair

Finnair

Wednesday

Finnair

Finnair

Thursday

Finnair

Finnair

Friday

Finnair

Finnair

Saturday

Finnair

Finnair

Sunday

Finnair

Finnair

See more direct flights

Direct returns

Helsinki-Vantaa to Chicago O'Hare Intl

Monday

Finnair

Finnair

Tuesday

Finnair

Finnair

Wednesday

Finnair

Finnair

Thursday

Finnair

Finnair

Friday

Finnair

Finnair

Saturday

Finnair

Finnair

Sunday

Finnair

Finnair

See more direct flights

Reviews of the top 5 airlines serving from O'Hare Intl to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Helsinki. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to Helsinki? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1392 reviews
6.9Entertainment
7.7Boarding
8.2Crew
7.4Comfort
6.7Food
Airline reviews

Comfort. Not good very little space after the person in front of you lay back.

8.0 ExcellentAnonymous, Apr 2026
IAD - MAD
Read more Finnair reviews

Comfort. Not good very little space after the person in front of you lay back.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

Very good seat, very comfortable, good food, and good service.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The most uncomfortable seat i’ve ever had on a flight

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Everything you need to know for your flight from O'Hare Intl to Helsinki

Information on your arrival and departure airports