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YUL - ORD

$130 Find cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

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 O'Hare Intl departing on 5/6. 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 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Chicago, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Montreal to O'Hare Intl (YUL-ORD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to O'Hare Intl 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 and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 10:17 amYUL-ORD
5h 17m1 stop
5:44 pm - 11:30 pmORD-YUL
4h 46m1 stop
$267Delta
Find Deal
Sun, May 26 - Tue, Jun 4
1:05 pm - 8:55 pmYUL-ORD
8h 50m1 stop
12:31 pm - 11:59 pmORD-YUL
10h 28m1 stop
$280Delta
Find Deal
Wed, May 15 - Sat, May 18
8:10 am - 12:02 pmYUL-ORD
4h 52m1 stop
6:00 am - 1:18 pmORD-YUL
6h 18m1 stop
$285Air Canada
Find Deal
Tue, Jun 4 - Tue, Jun 11
3:29 pm - 11:30 pmYUL-ORD
9h 01m1 stop
7:45 pm - 7:44 amORD-YUL
10h 59m1 stop
$289United Airlines
Find Deal
Sat, May 18 - Sat, May 25
8:30 am - 10:01 amYUL-ORD
2h 31mnonstop
11:00 am - 5:18 pmORD-YUL
5h 18m1 stop
$294Air Canada
Find Deal
Wed, May 15 - Sat, May 18
10:40 am - 8:56 pmYUL-ORD
11h 16m1 stop
6:30 am - 1:55 pmORD-YUL
6h 25m1 stop
$301American Airlines
Find Deal
Fri, May 17 - Sun, May 19
4:05 pm - 10:33 pmYUL-ORD
7h 28m1 stop
5:15 am - 1:55 pmORD-YUL
7h 40m1 stop
$302American Airlines
Find Deal
Thu, May 23 - Mon, May 27
7:30 am - 4:55 pmYUL-ORD
10h 25m1 stop
7:10 am - 11:04 pmORD-YUL
14h 54m1 stop
$339WestJet
Find Deal
Sat, Jun 8 - Mon, Jun 10
7:30 am - 2:59 pmYUL-ORD
8h 29m1 stop
7:10 am - 11:55 amORD-YUL
3h 45m1 stop
$340WestJet
Find Deal
Sun, Jun 16 - Wed, Jun 26
8:30 am - 1:10 pmYUL-ORD
5h 40m1 stop
6:00 am - 12:00 pmORD-YUL
5h 00m1 stop
$341United Airlines
Find Deal
Wed, Aug 7 - Wed, Aug 14

Flights from Montreal to O'Hare Intl - Travel Insights & Trends

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

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

The average price of all flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Montreal to Chicago O'Hare Airport, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Montreal, you’ll find the best rates on Mondays and the most expensive ones on Wednesdays.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is January, where tickets cost $292 on average. On the other hand, the most expensive months are October and July, where the average cost of tickets is $418 and $411 respectively.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Which airlines provide the cheapest flights from Montreal to Chicago O'Hare Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Montreal to Chicago O'Hare Airport found by KAYAK users in the last 72 hours was for $267 on Delta, followed by Air Canada ($285). One-way flight deals have also been found from as low as $158 on Air Canada and from $162 on Delta.

Which airlines fly non-stop between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport.
There are 2 airlines that fly nonstop from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. They are Air Canada and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing $235. On average, the best prices for this route can be found at United Airlines.

How many flights are there between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport per day?

Each day, there are between 7 and 10 nonstop flights that take off from Montreal Pierre Elliott Trudeau Intl Airport and land in Chicago O'Hare Intl Airport, with an average flight time of 2h 39m. The most common departure time is 6:00 am and most flights take off in the morning. Each week, there are 62 flights. The most frequent day of departure is Thursday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Montreal to Chicago O'Hare Airport take?

Direct flights take on average 2h 30m to travel the 745 miles between Montreal and Chicago O'Hare Airport.

What’s the earliest departure time from Montreal to Chicago O'Hare Airport?

Early birds can take the earliest flight from Montreal Pierre Elliott Trudeau Intl Airport at 6:15 am and will be landing in Chicago O'Hare Intl Airport at 8:01 am.

What’s the latest departure time from Montreal to Chicago O'Hare Airport?

If you prefer to fly at night, the latest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport jets off at 6:45 pm and lands at 8:21 pm.

Good to know

Low season

January

High season

October

Cheapest flight

$130
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Montreal to Chicago O'Hare Airport

When to book flights from Montreal to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Montreal to O'Hare Intl 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 Montreal to Chicago O'Hare Airport flights

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport was $130 for a one-way ticket and $267 for a round-trip.

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

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

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

    Air Canada, United Airlines, and American Airlines offer inflight Wi-Fi service on the Montreal to Chicago O'Hare Airport flight route.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Montreal to Chicago O'Hare Airport flight route.

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

    Star Alliance is the only airline alliance operating flights between Montreal and Chicago O'Hare Airport.

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

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

  • Which is the best airline for flights from Montreal to Chicago, WestJet or United Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Chicago are WestJet and United Airlines. With an average price for the route of $542 and an overall rating of 7.5, WestJet is the most popular choice. United Airlines is also a great choice for the route, with an average price of $324 and an overall rating of 7.4.

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

    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 Chicago O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 Chicago O'Hare Airport?

    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 Chicago O'Hare Airport with an airline and back to Montreal with another airline. Booking your flights between Montreal and ORD 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 Montreal to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport 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 a cheap flight from YUL to Chicago O'Hare Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $202 or less one-way and $369 or less round-trip.

Prefer to fly non-stop from Montreal to Chicago O'Hare Airport?

Find which airlines fly direct from Pierre Elliott Trudeau Intl to O'Hare Intl, which days they fly and book direct flights.

Nonstop departures

Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl

Monday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Tuesday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Wednesday

ANA, Air Canada, Air New Zealand, +8 more

ANA, Air Canada, +9 more

Thursday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Friday

ANA, Air Canada, Air New Zealand, +8 more

ANA, Air Canada, +9 more

Saturday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Sunday

ANA, Air Canada, Air New Zealand, +8 more

ANA, Air Canada, +9 more

See more direct flights

Nonstop returns

Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl

Monday

ANA, Air Canada, Air New Zealand, +6 more

ANA, Air Canada, +7 more

Tuesday

ANA, Air Canada, Air New Zealand, +6 more

ANA, Air Canada, +7 more

Wednesday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Thursday

ANA, Air Canada, Air New Zealand, +6 more

ANA, Air Canada, +7 more

Friday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

Saturday

ANA, Air Canada, Air New Zealand, +6 more

ANA, Air Canada, +7 more

Sunday

ANA, Air Canada, Air New Zealand, +7 more

ANA, Air Canada, +8 more

See more direct flights
See more direct flights

Top 4 airlines serving from Montreal to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Chicago. 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 Montreal to O'Hare Intl? 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.
7.5
WestJetOverall score based on 2985 reviews
7.3comfort
6.5food
6.5entertainment
8.2crew
7.7boarding
Airline reviews

I wish that seats closer to the front of the plan were available, but when I booked the flight the seats were VERY expensive so I did not book seats at that time. The day before flying only seats at the back of the plane were available. It takes so long to board the plane and empty the plane on arrival due to SO many roller bags.

8.0 ExcellentAnonymous, Apr 2024YYZ - ATL
Read more about WestJet reviews

I wish that seats closer to the front of the plan were available, but when I booked the flight the seats were VERY expensive so I did not book seats at that time. The day before flying only seats at the back of the plane were available. It takes so long to board the plane and empty the plane on arrival due to SO many roller bags.

Good flight. No I’m seat entertainment. But my phone worked just fine on the west jet app.

I had planned to watch the Westjet entertainment for the entire flight however, because the seat mounted outlets in our row did not work.

Not a bad flight but our priority tagged luggage was the very last to come down the carousel.

Plane had a flat tire, delayed boarding and takeoff but one in the air, smooth. Make sure you have downloaded the WJ app before you leave. When on board, you can watch movies or TV shows offered on the app, it passed the time very quickly.

Our recent flight from edmontown to kahalui was excellent. The service staff was very friendly, knowledgeable, funny and attentive. Thanks to all involved that made or travel such a pleasant experience and we hope to fly with west jet again soon

The flight was delayed and I missed boarding my 7 day cruise. I had to book a separate flight home

No real issues just wasnt able to hear / understand any announcements flight attendant was making but everything else was really good- ended up checking my carry on case for free which made deboarding quicker. I would fly West Jet for all my flights.

Seats were comfortable and leg room was good. Slight delay for boarding but nothing too bad. Would fly with them again.

Long lines to board with only two staff checking boarding passes!

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!

Unfortunately this is not a happy ending comment. Positive: flown United before no issue Negative: it only takes one bad experience to not plan future travel with United Cancún departure was delayed by 1h20 minutes, connection in Chicago was 1h30 minutes. Flight departure time 6:08 Miraculously 7 of us ran 4 kilometres through Chicago to arrive at 6:00 to be told very rudely by the 2 unprofessional United attendants you missed your flight and that we should of arrived early. Did I mention that reason I was flying? I received a call that my brother was dying and to get home. They provided no assistance would not answer any of our questions, ignorantly walked away. Deplorable

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

If United expects people to use their own devices for entertainment they should put charging outlets in each seating area. I arrived with 14%battery power. That is not good when you arrive anywhere and need to communicate for transportation.

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

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.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

lounge was the highlight - seats weren't that comfortable - it was a full flight but no complaints

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

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.

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

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.

Cabin staff could have been more attentive & appear to enjoy their job. Were fairly disengaged.

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

Book cheap flights from Montreal to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Montreal to Chicago found on KAYAK in the last 72 hours.
5/6Mon
1 stop
28h 01mYUL-ORD
$130
5/6Mon
2 stops
31h 00mYUL-ORD
$145
5/26Sun
nonstopAir Canada
2h 31mYUL-ORD
$158
5/18Sat
1 stopAir Canada
5h 44mYUL-ORD
$169
5/26Sun
2 stopsAmerican Airlines
7h 46mYUL-ORD
$181
7/3Wed
1 stopAmerican Airlines
7h 41mYUL-ORD
$190
6/16Sun
nonstopUnited Airlines
2h 43mYUL-ORD
$204
10/9Wed
1 stopWestJet
6h 16mYUL-ORD
$213
6/10Mon
2 stopsWestJet
22h 29mYUL-ORD
$216
5/27Mon
nonstopUnited Airlines
2h 43mYUL-ORD
$221

Search by stops

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Last minute flights from Montreal to O'Hare Intl

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 from Montreal to Chicago that are departing in the next 10 days.
4/29Mon
multi-stop
14h 10mYUL-ORD
5/2Thu
multi-stop
15h 30mORD-YUL
$478
4/29Mon
multi-stop
14h 01mYUL-ORD
5/2Thu
multi-stop
15h 30mORD-YUL
$484
4/28Sun
multi-stopWestJet
6h 25mYUL-ORD
5/5Sun
multi-stopWestJet
15h 02mORD-YUL
$486
4/28Sun
multi-stopSun Country Air
6h 53mYUL-ORD
5/2Thu
multi-stopSun Country Air
15h 30mORD-YUL
$490
4/30Tue
nonstopAir Canada
2h 46mYUL-ORD
5/4Sat
nonstopAir Canada
2h 24mORD-YUL
$492
4/29Mon
multi-stopWestJet
6h 07mYUL-ORD
5/6Mon
multi-stopWestJet
4h 42mORD-YUL
$493
4/29Mon
nonstopAir Canada
2h 46mYUL-ORD
5/6Mon
multi-stopAir Canada
5h 03mORD-YUL
$498
4/28Sun
multi-stop
15h 16mYUL-ORD
5/2Thu
multi-stop
15h 30mORD-YUL
$509
4/29Mon
nonstop
2h 36mYUL-ORD
5/2Thu
nonstop
2h 24mORD-YUL
$527
4/28Sun
nonstopUnited Airlines
2h 46mYUL-ORD
5/2Thu
multi-stopUnited Airlines
4h 48mORD-YUL
$595

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Montreal - Chicago O'Hare Airport Flights

Departure:

Montreal (YUL)Canada

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Montreal

Cabin classes:

$1,052
$504
$909
$249