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$133+ Cheap flights from Chicago (CHI) to Montreal (YMQ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YMQ
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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1. Tell us where you want to go

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3. Compare prices and book

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Cheapflights Tip: The best prices from Chicago to Montreal are usually found in September or April, booked 63 days in advance, depart on a Thursday or Monday and return on a Friday

Cheap flight deals from Chicago to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Montreal (YMQ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$191
(United Airlines)

One-way from

$133
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$328

Good round-trip deal

$373 or less

Good one-way deal

$300 or less
Provider with most accurate pricing for Chicago (CHI)-Montreal (YMQ) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Montreal (YMQ) flights.
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From Chicago (CHI) to Montreal (YMQ)
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One-way flight from Chicago (CHI) to Montreal (YMQ)
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Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Montreal (YMQ).
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Price to beat on a one-way flight from Chicago (CHI) to Montreal (YMQ).
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Find flight deals from Chicago to Montreal

Cheapest flights from Chicago to Montreal
Explore the most affordable flight options available from Chicago to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This oojo deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:00 amMDW - YUL
1 stop5h 45mPorter Airlines
Mon 1/56:45 amYUL - MDW
1 stop4h 20mPorter Airlines
Deal found 11/17$217
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:52 pmORD - YUL
Nonstop2h 25mUnited Airlines
Sun 1/46:00 amYUL - ORD
Nonstop3h 05mUnited Airlines
Deal found 11/17$229
This Flightnetwork deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:05 amORD - YUL
Nonstop2h 05mAir Canada
Thu 12/2511:10 amYUL - ORD
1 stop5h 00mAir Canada
Deal found 11/18$239
This United Airlines deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:52 pmORD - YUL
Nonstop2h 25mUnited Airlines
Wed 1/77:00 amYUL - ORD
1 stop8h 28mUnited Airlines
Deal found 11/16$245
This Flightnetwork deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:55 pmORD - YUL
1 stop4h 57mAir Canada
Wed 12/2412:10 pmYUL - ORD
1 stop6h 38mAir Canada
Deal found 11/18$246
This Kiwi.com deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:15 pmMDW - YUL
1 stop5h 30mPorter Airlines
Sat 1/311:25 amYUL - MDW
1 stop4h 55mPorter Airlines
Deal found 11/17$249
This Trip.com deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:00 amMDW - YUL
1 stop5h 45mPorter Airlines
Fri 1/26:45 amYUL - MDW
1 stop4h 25mPorter Airlines
Deal found 11/18$252
This Mytrip deal was found by Cheapflights users on 11/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmORD - YUL
2 stops5h 50mAir Canada
Wed 1/710:10 amYUL - ORD
1 stop6h 00mAir Canada
Deal found 11/15$252
This Kissandfly.com deal was found by Cheapflights users on 11/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:52 pmORD - YUL
Nonstop2h 25mLufthansa
Wed 1/76:00 amYUL - ORD
Nonstop3h 05mLufthansa
Deal found 11/15$256
This Kiwi.com deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:44 amMDW - YUL
1 stop7h 41mMultiple Airlines
Wed 12/246:45 amYUL - MDW
1 stop4h 20mMultiple Airlines
Deal found 11/18$257
This Kiwi.com deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:00 amMDW - YUL
1 stop4h 30mPorter Airlines
Mon 12/2911:25 amYUL - MDW
1 stop4h 55mPorter Airlines
Deal found 11/17$264
This Mytrip deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:00 amMDW - YUL
1 stop5h 45mPorter Airlines
Sat 1/36:45 amYUL - MDW
1 stop4h 25mPorter Airlines
Deal found 11/17$266

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Montreal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
Use the filters below to find and compare flights from Chicago to Montreal that are best for you.

Fly from

Chicago

Fly to

Montreal

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/7

7:00 am-10:11 am

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Mon 5/11

6:30 pm-11:42 pm

1 stop6h 12m

$196

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 5/3

7:00 am-10:11 am

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

9:30 am-2:12 pm

1 stop5h 42m

$196

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 5/9

5:50 pm-9:01 pm

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Mon 5/11

11:15 am-11:12 pm

1 stop12h 57m

$196

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 2/14

1:02 pm-7:48 pm

1 stop5h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 2/21

9:15 am-11:43 pm

1 stop15h 28m

$206

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 1/11

8:52 am-3:16 pm

1 stop5h 24m

Montreal Pierre Elliott Trudeau Intl

Tue 1/13

2:13 pm-11:39 pm

1 stop10h 26m

$206

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 4/1

7:00 am-1:09 pm

1 stop5h 09m

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

9:15 am-2:22 pm

1 stop6h 07m

$206

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 1/14

7:10 am-1:28 pm

1 stop5h 18m

Montreal Pierre Elliott Trudeau Intl

Sun 1/18

2:13 pm-11:39 pm

1 stop10h 26m

$206

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Mon 3/2

7:10 am-1:28 pm

1 stop5h 18m

Montreal Pierre Elliott Trudeau Intl

Mon 3/9

3:11 pm-7:58 pm

1 stop5h 47m

$206

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 2/1

8:52 am-3:16 pm

1 stop5h 24m

Montreal Pierre Elliott Trudeau Intl

Wed 2/4

3:00 pm-8:13 pm

1 stop6h 13m

$206

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Tue 12/30

4:15 pm-10:45 pm

1 stop5h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 1/5

6:45 am-10:05 am

1 stop4h 20m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 36 results
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Compare providers for flights from Chicago to Montreal

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Montreal in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Montreal flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Montreal flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-Montreal flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Montreal flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Montreal

How far ahead should I book a flight from Chicago to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Montreal. Price data was last updated on November 14, 2025.

The price you pay for your flight from Chicago to Montreal may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago to Montreal?

Currently, January is the cheapest month in which you can book a flight from Chicago to Montreal (average of $138). Flying from Chicago to Montreal in July is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to YMQ?

Find hourly flight availability from Chicago to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

One of the essential ways to save on airfare from Chicago to Montreal is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 26% on airfare.

Weekly flight availability from Chicago to Montreal

Explore weekly flight availability from Chicago to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 18, 2025.

The most flights from CHI to YMQ are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost to fly round-trip from Chicago to Montreal?

How often are flights from Chicago to Montreal delayed?

About 15% of weekly flights between Chicago and Montreal have experienced delays in the past year, with the average delay time being 134 minutes.

What is the most punctual flight time for Chicago to Montreal flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Montreal flights?

Over the last year, Delta have had the lowest number of delays on this route, with no flights being classified as delayed.

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montreal. Reviews last updated November 18, 2025.
Read reviews from past customers who have flown Porter Airlines, United Airlines, and American Airlines from Chicago to Montreal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
392 reviews

Crew

8.6

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
392 reviews
Porter Airlines
8.0
Very good
392 reviews

Crew

8.6

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,020 reviews
Porter Airlines
8.0
Very good
392 reviews

Crew

8.6

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,047 reviews
Porter Airlines
8.0
Very good
392 reviews

Crew

8.6

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,462 reviews
Porter Airlines
8.0
Very good
392 reviews

Crew

8.6

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Montreal?

    There are many flights that can get you from Chicago to Montreal in 2h 11m. Fly via United Airlines, Porter Airlines, or Delta to get the fastest option. Chicago and Montreal are separated by a distance of 745 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to Montreal round-trip?

    Currently priced at $162, Air Canada will fly you from Chicago to Montreal and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Porter Airlines - these airlines can fly you to your destination from $192 and $249, respectively. Air Canada is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Chicago to Montreal one-way?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as $136. Users have also found prices from $139 and $152 on Air Canada and Delta, respectively.

  • What are the most reliable airlines from Chicago to Montreal?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Montreal on time: Republic Airways (88%), American Airlines (86%), Envoy Air (86%).

  • What are the cheapest flights from Chicago to Montreal?

    While on average a flight from Chicago to Montreal is generally $851, our data shows the cheapest flight currently is $142. When looking at the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $168 for that flight.

  • Can I find deals for flights from Chicago to Montreal that include hotel bookings?

    Yes. In addition to deals on Chicago to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Montreal.

  • Can I find deals for business class flights from Chicago to Montreal?

    Yes. Cheapflights offers flight deals from Chicago to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Montreal?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Montreal (average of $138). Flying from Chicago to Montreal in July is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Chicago to Montreal

Discover the top 4 airlines that operate flights from Chicago to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$162Average$412FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$192Average$405FlexibilityNo cancel feeOn-time71%
Porter AirlinesCheapest$249Average$457FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$256Average$407FlexibilityNo cancel feeOn-time69%

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