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Find cheap flights from Montreal to Illinois from $145

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 7/4. 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
Sat 6/29
Sat 7/6

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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 stop$232
St. Louis
St. Louis1 stop$389

Good to know

Low season

January

High season

March

Cheapest flight

$145
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Montreal to Chicago Midway 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 travelers 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

  • Looking for a cheap flight? 25% of our users found tickets from Montreal to the following destinations at these prices or less: Chicago $224 one-way - $317 round-trip
  • Morning departure is around 12% 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 474 reviews
7.8Boarding
6.9Entertainment
6.8Food
8.3Crew
7.1Comfort
Airline reviews

I was pleasantly surprised. I booked the "club class" which was basically like Domestic First Class. The service was superior. Food was pretty good. Seats and cabin were comfortable. For the price I paid, I was very pleased.

10.0 ExcellentTZ, May 2024FCO - YUL
Read more about Air Transat reviews

I was pleasantly surprised. I booked the "club class" which was basically like Domestic First Class. The service was superior. Food was pretty good. Seats and cabin were comfortable. For the price I paid, I was very pleased.

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.

Great boarding. Everything was on time. Plane was a bit old and the crew could have provided better drink service.

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.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

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.

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Moderate size plane, not completely full, easy boarding, some rows with just 2 seats so a couple can have a row to themselves

Pretty good service and US Migratory officers providing services in Canada was awesome, because the arrival was quick and smooth

Rouge needs to offer seats with better pitch in economy. Many sick people on a full flight.

Overall, I would have to say my experience with Air Canada was mediocre their DC tens. Need to be updated not comfortable at all. Only one out of my four flights was decent. The staffing was very nice. Going through customs in Montreal was quick and easy. Air Canada has room for improvement with their facilities.

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.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

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.

Book cheap flights from Montreal to Illinois

Recent round-trip flight deals

7/30Tue
1 stopPorter Airlines
6h 12mYUL-MDW
8/13Tue
1 stopPorter Airlines
4h 35mMDW-YUL
$232
8/21Wed
1 stopPorter Airlines
6h 32mYUL-MDW
8/28Wed
1 stopPorter Airlines
4h 45mMDW-YUL
$233
7/4Thu
nonstopUnited Airlines
2h 43mYUL-ORD
7/7Sun
nonstopUnited Airlines
2h 23mORD-YUL
$251
9/6Fri
nonstopAmerican Airlines
2h 36mYUL-ORD
9/8Sun
1 stopAmerican Airlines
14h 19mORD-YUL
$259
7/4Thu
1 stopUnited Airlines
11h 36mYUL-ORD
7/7Sun
nonstopUnited Airlines
2h 23mORD-YUL
$266
9/20Fri
1 stopAir Canada
5h 02mYUL-ORD
9/22Sun
1 stopAir Canada
6h 16mORD-YUL
$267
8/24Sat
nonstopAmerican Airlines
2h 38mYUL-ORD
9/1Sun
nonstopAmerican Airlines
2h 22mORD-YUL
$271
9/6Fri
1 stopAir Canada
4h 46mYUL-ORD
9/8Sun
1 stopAir Canada
6h 16mORD-YUL
$272
7/1Mon
1 stopWestJet
4h 21mYUL-ORD
7/8Mon
1 stopWestJet
4h 59mORD-YUL
$306
7/1Mon
1 stopWestJet
4h 21mYUL-ORD
7/8Mon
1 stopWestJet
4h 59mORD-YUL
$310

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Recent one-way flight deals

7/4Thu
1 stopPorter Airlines
5h 52mYUL-MDW
$145
7/11Thu
1 stopPorter Airlines
6h 32mYUL-MDW
$146
6/17Mon
nonstopAmerican Airlines
2h 39mYUL-ORD
$153
9/14Sat
nonstopAir Canada
2h 34mYUL-ORD
$162
7/3Wed
1 stopAir Canada
4h 44mYUL-ORD
$163
7/4Thu
nonstopUnited Airlines
2h 43mYUL-ORD
$164
9/25Wed
nonstopAmerican Airlines
2h 36mYUL-ORD
$165
8/26Mon
2 stopsWestJet
15h 29mYUL-MDW
$178
7/23Tue
1 stopWestJet
15h 07mYUL-ORD
$192
6/21Fri
1 stopUnited Airlines
20h 36mYUL-STL
$270

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Last minute flights from Montreal to Illinois

Last minute flight, train and bus deals

6/4Tue
multi-stopDelta
22h 45mYUL-ORD
6/8Sat
multi-stopDelta
9h 35mORD-YUL
$417
6/4Tue
multi-stopDelta
8h 38mYUL-ORD
6/11Tue
multi-stopDelta
9h 35mORD-YUL
$429
6/2Sun
multi-stopDelta
5h 56mYUL-ORD
6/9Sun
multi-stopDelta
8h 00mORD-YUL
$431
6/4Tue
multi-stopAmerican Airlines
6h 00mYUL-ORD
6/11Tue
nonstopAmerican Airlines
2h 30mORD-YUL
$478
6/2Sun
multi-stopAmerican Airlines
10h 40mYUL-ORD
6/9Sun
nonstopAmerican Airlines
2h 30mORD-YUL
$480
6/4Tue
nonstopAir Canada
2h 36mYUL-ORD
6/8Sat
nonstopAir Canada
2h 25mORD-YUL
$513
6/1Sat
multi-stopUnited Airlines
7h 38mYUL-ORD
6/2Sun
nonstopUnited Airlines
2h 23mORD-YUL
$540
6/1Sat
nonstopAir Canada
2h 36mYUL-ORD
6/2Sun
nonstopAir Canada
2h 23mORD-YUL
$600
6/1Sat
multi-stopWestJet
14h 17mYUL-ORD
6/2Sun
multi-stopWestJet
25h 18mORD-YUL
$652
6/2Sun
nonstopUnited Airlines
2h 43mYUL-ORD
6/9Sun
nonstopUnited Airlines
2h 23mORD-YUL
$707

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Montreal - Illinois Flights

Departure:

Montreal (YUL)Canada

Return flight deals:

Illinois - Montreal

Cabin classes:

$4,703
$1,223
$2,038
$184