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Find cheap flights from Montreal to Illinois from C$ 197

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Illinois departing on 26/5. 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
0 bags
Wed 5/6
Wed 12/6

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stopC$ 339

Good to know

Low season

January

High season

March

Cheapest flight

C$ 197
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 19% lower on average.
Flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Montreal 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 Montreal to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Montreal is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal 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 to Illinois with an airline and back to Montreal with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal 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 to Illinois from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 34% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Montreal to Illinois

 
Need help choosing which airline to fly with from Montreal 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.
7.6
Air TransatOverall score based on 486 reviews
7.1Comfort
8.3Crew
7.8Boarding
6.9Entertainment
6.8Food
Airline reviews

Super unproffesional flight . Flight attendants were unproffesional. I could hear them gossiping about theor boyfriends the whole trip

2.0 MediocreAnonymous, Apr. 2024CUN - YYZ
Read more about Air Transat reviews

Super unproffesional flight . Flight attendants were unproffesional. I could hear them gossiping about theor boyfriends the whole trip

The connecting flight lay over was 4.00 hours, the gate agent booked me on the next flight which was about to depart at no extra cost.

The ticket price was reasonable, food was okay, not the best. I would use the service again.

Actually the flight was on time. New plane, food was okay but not great.

Old plane, hard seats, 1.30 hours delay, while seating on the plane waiting for departure.

Boarding was a little chaotic but it was a very large flight. It just wasn’t fast. And there was no noticeable difference between zones boarding.

Crew was pleasant. Aircraft was very dated and uncomfortable for our nearly 4 hour flight. We were in row 17 and they ran out of purchasable food by the time they got to us.

We were lucky enough to arrive at the right time. The staff at YYZ did our complete check in and luggage tags for us. Even made sure we knew where we were to head next and how to get there. It truly was one of the best and easiest check inside. Thanks team.

Compagnie efficace et bons prix. Les sièges en classe club pourraient être plus confortables.

Lisbon, make sure to get food , coffee prior to going to boarding gates as there is no food being served after. Only vending machines. A lot of check points to get to the boarding gates. Not enough seating for passengers waiting to board. Crew was very courteous and kind.

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Medíocre. The food wasn't good (although not bad, bad) and the staff wasn't kind. I asked for n extra blanket, the steward never came back, serving us roughly.

Generally good. The crew is excellent. The food could be better.

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

They charge me for luggage which is was included on the ticket

Business class in the second leg - CDG-EVN was a disaster.

I have used Air France and KLM many times it will help if they change their menu's feel like it's been the same for years!!!, Especially the breakfast. Overall the flight was good and enjoyable.

No bording was given for next trip on same carrier, food was very moderate.

Lost luggage, 2 bags were badly damaged and one of the bags came open.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

When we got to the airport for our flight from Chicago to Montreal which was scheduled for 2.00 p.m. they had no record of it and booked us on a flight at 3.30 very disappointing . We also had to pay 50.00 each for a seat. All things considered ,I will never book thru Kayak again. Next time I will only book directly thru Air Canada no second party booking Sue

My flight has been canceled and I had to cancel entire trip.

No food for a 6 hours flight! Plus very expensive to buy ! Sit uncomfortable! Awful!!!

There was no food on this flight. We had less than 1/3 full plane and were not allowed to spread out. Staff gave the story of the plane had to have all of us up front for 'balance.' Total bs.

There were changes to my flight with many email and very difficult to keep up with details of changes. I consulted Air Canada website that said I was to depart Casablanca at 9:35 but when I got to airport that take off time was delayed by 2 hours. That's 2 hours at an airport instead of bed. I don't understand why Air Canada website didn't show the change in take off like they showed the change in transfer. Do better.

I was delayed from Montreal to Tokyo for 3 hours and they didn't compensate anything

Flying Business on Air Canada is wonderful. With ultimate destination in US, you get the Lounge. Only problem is there was no lounge in YQB so it had to wait until connector in YUL. Flight itself is only about 30 min like the old DC-NYC shuttle so there was no service other than almonds and the bottle of water that was at your seat upon boarding. Would have been nice to be offered a beverage and there was enough time to do a quick pass for the 16 seats. That and having a lounge in YQB are only complaints, but that's very first world complaint. The FA were cordial and professional if not warm. It was a good flight and I'd do it again. But, word to the wise, it's a very different experience doing border check in YUL than YYZ. Long walk and had to go through full screening (including taking off shoes and having to chuck the bottle I had just gotten not knowing there was going to be a frull screening since there was no warning) at YUL even though never left the terminal after landing. YYZ was just a passport check. This is not A/C's fault, but travelers should be advised/warned in advance so they know what to expect especially since you land and have access tot eh terminal and it's stores and food before you get to border check. If you have mobility issues, the distance can easily be a problem and there is no warning of how long it is until you have reached the end. My mom would not be able to navigate it and someone like her may not be able to stop in the middle of an empty long corridor to ask for mobility help. A sign offering how long (10 Min, etc.) the walk is like at new LGA terminals goes a long way. Also can be stressful if you're tight on time for a connection.

I’m 5’3 115 lbs and felt so cramped in this express jet. My carry on actually meets the requirements and still had to be stuffed Into the overhead and barely fit down the aisle. Not a great experience. Air Canada needs to replace these planes.

I liked that the flight was on time for departure and arrival

Try to humanize onboarding and take AI out. It's embarrassing and useless

no kiosks to check in with- it’s 2024!!! the flight was so hot and uncomfortable - not sure if that’s what caused a lady to faint during the flight but i was absolutely miserable.

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

I ended up buying (for $340) "extra space" seats because I my flying partner was given a STY boarding pass, leading me to conclude that she was on standby and that we had to buy seats on the flight. I later learned that the flight was not sold out and that we could have gotten on as usual. To be honest, I felt swindled.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Book cheap flights from Montreal to Illinois

Recent round-trip flight deals

3/6Mon
1 stopPorter Airlines
4h 02mYUL-MDW
10/6Mon
1 stopPorter Airlines
4h 35mMDW-YUL
C$ 339
20/6Thu
1 stopPorter Airlines
4h 07mYUL-MDW
24/6Mon
1 stopPorter Airlines
4h 45mMDW-YUL
C$ 341
4/6Tue
directAir Canada
2h 31mYUL-ORD
11/6Tue
1 stopAir Canada
6h 18mORD-YUL
C$ 359
4/6Tue
1 stopAir Canada
4h 52mYUL-ORD
11/6Tue
1 stopAir Canada
6h 18mORD-YUL
C$ 372
12/6Wed
directAmerican Airlines
2h 39mYUL-ORD
15/6Sat
1 stopAmerican Airlines
11h 59mORD-YUL
C$ 378
29/5Wed
directUnited Airlines
2h 43mYUL-ORD
1/6Sat
1 stopUnited Airlines
14h 41mORD-YUL
C$ 379
4/6Tue
1 stopAmerican Airlines
10h 57mYUL-ORD
11/6Tue
1 stopAmerican Airlines
11h 59mORD-YUL
C$ 395
29/5Wed
directUnited Airlines
2h 31mYUL-ORD
1/6Sat
1 stopUnited Airlines
16h 27mORD-YUL
C$ 398
28/6Fri
1 stopWestJet
23h 02mYUL-ORD
1/7Mon
1 stopWestJet
12h 41mORD-YUL
C$ 449
30/5Thu
1 stopWestJet
9h 28mYUL-ORD
2/6Sun
1 stopWestJet
4h 05mORD-YUL
C$ 456

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Recent one-way flight deals

26/5Sun
1 stop
9h 44mYUL-ORD
C$ 197
3/7Wed
directAir Canada
2h 35mYUL-ORD
C$ 208
6/6Thu
1 stopPorter Airlines
4h 27mYUL-MDW
C$ 209
31/5Fri
1 stopAmerican Airlines
7h 51mYUL-ORD
C$ 239
3/6Mon
1 stopAmerican Airlines
12h 04mYUL-ORD
C$ 241
30/6Sun
1 stopWestJet
26h 00mYUL-ORD
C$ 275
29/9Sun
2 stopsWestJet
15h 49mYUL-ORD
C$ 276
19/5Sun
directUnited Airlines
2h 46mYUL-ORD
C$ 286
10/6Mon
directUnited Airlines
2h 35mYUL-STL
C$ 346
30/10Wed
directLufthansa
2h 42mYUL-ORD
C$ 374

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Last minute flights from Montreal to Illinois

Last minute flight, train and bus deals

10/5Fri
multi-stop
17h 25mYUL-ORD
29/5Wed
multi-stop
9h 00mORD-YUL
C$ 538
10/5Fri
multi-stopPorter Airlines
4h 27mYUL-MDW
29/5Wed
multi-stopPorter Airlines
4h 35mMDW-YUL
C$ 545
10/5Fri
multi-stopAmerican Airlines
7h 45mYUL-ORD
29/5Wed
multi-stopAmerican Airlines
6h 25mORD-YUL
C$ 601
10/5Fri
directAir Canada
2h 45mYUL-ORD
29/5Wed
multi-stopAir Canada
6h 18mORD-YUL
C$ 623
10/5Fri
multi-stopAmerican Airlines
9h 28mYUL-ORD
11/5Sat
multi-stopAmerican Airlines
6h 29mORD-YUL
C$ 695
10/5Fri
multi-stopUnited Airlines
16h 05mYUL-ORD
11/5Sat
directUnited Airlines
2h 24mORD-YUL
C$ 698
10/5Fri
directUnited Airlines
2h 46mYUL-ORD
12/5Sun
multi-stopUnited Airlines
6h 16mORD-YUL
C$ 724
9/5Thu
multi-stopWestJet
6h 32mYUL-ORD
12/5Sun
multi-stopWestJet
5h 49mORD-YUL
C$ 725
10/5Fri
directAir Canada
2h 36mYUL-ORD
12/5Sun
multi-stopAir Canada
5h 18mORD-YUL
C$ 732
10/5Fri
multi-stopWestJet
16h 44mYUL-ORD
11/5Sat
multi-stopWestJet
10h 28mORD-YUL
C$ 751

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Montreal - Illinois Flights

Departure:

Montreal (YUL)Canada

Return flight deals:

Illinois - Montreal

Cabin classes:

C$ 1,665
C$ 2,538
C$ 1,238
C$ 452