$576 Find Cheap Flights from Finland to Illinois

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois, as well as popular online travel agencies
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KAYAK's insights & trends for flights to Illinois

Get data-powered insights and trends for flights to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Illinois?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Illinois from Finland found in the last 72 hours was to Chicago O'Hare Intl Airport, at $714 round-trip. The most popular route is Helsinki (HEL) to Chicago O'Hare Intl Airport (ORD) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $714.

What is the cheapest month to fly from Finland to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Finland to Illinois, 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 Finland to Illinois is February, when tickets cost $625 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $979 and $932 respectively.

How far in advance should I book a flight from Finland to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Illinois, 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 Finland to Illinois, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Which is the cheapest airport to fly into in Illinois?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago O'Hare Intl Airport (ORD), with an average flight price of $834.


Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$576
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Helsinki to Chicago

FAQs for booking flights from Finland to Illinois

  • How does KAYAK find such low prices on flights from Finland to Illinois?

    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 Finland to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Finland to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Finland to Illinois 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 Finland to Illinois?

    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 from Finland to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Finland to Illinois?

    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 from Finland to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Monday where round-trip tickets can be as cheap as $695. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are $1,149 on average.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $642 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $904.

Top 4 airlines serving from Finland to Illinois

 
See real verified KAYAK customer reviews for airlines flying to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Finland to Illinois. 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 Finland to Illinois? 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.
7.8
KLMOverall score based on 1334 reviews
7.7Comfort
7.8Boarding
7.1Entertainment
8.4Crew
7.2Food
Airline reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

The seats in row 31 are terrible and small and uncomfortable. Don't ever sit there. The window seat is so close to the curve of the plane is so annoying. I paid extra for this seat and I hated all 10 hours in it.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Book cheap flights from Finland to Illinois

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Illinois found on KAYAK in the last 72 hours.
5/27Tue
1 stopIcelandair
11h 15mHEL-ORD
6/3Tue
1 stopIcelandair
10h 35mORD-HEL
$576
5/19Mon
1 stopIcelandair
11h 15mHEL-ORD
5/26Mon
1 stopIcelandair
10h 35mORD-HEL
$577
8/24Sun
1 stopLufthansa
21h 45mHEL-ORD
8/30Sat
1 stopLufthansa
22h 00mORD-HEL
$589
5/24Sat
1 stopKLM
32h 15mHEL-ORD
6/9Mon
2 stopsKLM
14h 40mORD-HEL
$641
5/24Sat
1 stopKLM
27h 45mHEL-ORD
6/9Mon
2 stopsKLM
14h 40mORD-HEL
$643
8/24Sun
1 stopFinnair
15h 05mHEL-ORD
8/30Sat
nonstopFinnair
8h 45mORD-HEL
$720
8/24Sun
1 stopFinnair
15h 05mHEL-ORD
8/30Sat
nonstopFinnair
8h 45mORD-HEL
$721
5/26Mon
nonstopBritish Airways
9h 25mHEL-ORD
6/2Mon
1 stopBritish Airways
12h 40mORD-HEL
$801
5/20Tue
1 stopBritish Airways
24h 45mHEL-ORD
5/27Tue
nonstopBritish Airways
8h 45mORD-HEL
$822
5/24Sat
2 stopsLufthansa
14h 50mHEL-ORD
6/9Mon
1 stopLufthansa
12h 15mORD-HEL
$1,009

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Illinois found on KAYAK in the last 72 hours.
7/16Wed
1 stopTurkish Airlines
29h 05mHEL-ORD
$608
7/16Wed
2 stops
22h 07mHEL-ORD
$762
7/17Thu
nonstopFinnair
9h 25mHEL-ORD
$764
7/17Thu
2 stopsTAP AIR PORTUGAL
36h 45mHEL-ORD
$774
7/3Thu
2 stopsDelta
19h 41mHEL-MDW
$806
7/3Thu
2 stopsDelta
18h 46mHEL-ORD
$806
6/11Wed
2 stopsTAP AIR PORTUGAL
36h 25mHEL-ORD
$1,231
6/9Mon
2 stopsIcelandair
17h 15mHEL-ORD
$1,421
5/26Mon
1 stopIcelandair
14h 15mHEL-ORD
$1,431
6/11Wed
nonstopFinnair
9h 25mHEL-ORD
$2,280

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Last minute flights to Illinois

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Illinois that are departing in the next 10 days.
5/5Mon
multi-stopScandinavian Airlines
15h 10mHEL-ORD
5/12Mon
multi-stopScandinavian Airlines
19h 50mORD-HEL
$792
5/5Mon
multi-stopScandinavian Airlines
19h 10mHEL-ORD
5/12Mon
multi-stopScandinavian Airlines
11h 10mORD-HEL
$823
5/5Mon
multi-stopDelta
21h 45mHEL-ORD
5/12Mon
multi-stopDelta
17h 07mORD-HEL
$856
5/5Mon
multi-stop
34h 35mHEL-ORD
5/12Mon
multi-stop
21h 00mORD-HEL
$905
5/5Mon
multi-stop
34h 35mHEL-ORD
5/12Mon
multi-stop
30h 25mORD-HEL
$932
5/5Mon
multi-stop
22h 05mHEL-ORD
5/12Mon
nonstop
8h 45mORD-HEL
$1,211
5/5Mon
multi-stopIcelandair
11h 15mHEL-ORD
5/12Mon
multi-stopIcelandair
10h 35mORD-HEL
$3,083
5/5Mon
multi-stopIcelandair
11h 15mHEL-ORD
5/12Mon
multi-stopIcelandair
37h 40mORD-HEL
$3,261
5/5Mon
multi-stop
20h 55mHEL-ORD
5/12Mon
multi-stop
19h 20mORD-HEL
$4,450
5/5Mon
multi-stop
11h 15mHEL-ORD
5/12Mon
nonstop
8h 45mORD-HEL
$7,241

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Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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