HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pierre Elliott Trudeau Intl

$104+ Cheap flights from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Pierre Elliott Trudeau Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in February or April, booked 57 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Air Canada deal was found by Cheapflights users on 4/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/178:25 pm
ORD
-
YUL
1 stop4h 27m
Air Canada
Thu 6/181:15 pm
YUL
-
ORD
Nonstop2h 29m
Air Canada
Deal found 4/20$249
This Air Canada deal was found by Cheapflights users on 4/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:05 am
ORD
-
YUL
Nonstop2h 18m
Air Canada
Fri 7/34:30 pm
YUL
-
ORD
1 stop4h 46m
Air Canada
Deal found 4/20$252
This Air Canada deal was found by Cheapflights users on 4/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:50 am
ORD
-
YUL
1 stop5h 32m
Air Canada
Wed 7/156:30 pm
YUL
-
ORD
Nonstop2h 35m
Air Canada
Deal found 4/20$260
This Flybillet deal was found by Cheapflights users on 4/19. 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 Flybillet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:25 am
ORD
-
YUL
1 stop5h 20m
Air Canada
Mon 6/82:30 pm
YUL
-
ORD
1 stop6h 46m
Air Canada
Deal found 4/19$282
This Flightnetwork deal was found by Cheapflights users on 4/21. 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.
Fri 6/52:00 pm
ORD
-
YUL
1 stop6h 45m
Air Canada
Fri 6/122:30 pm
YUL
-
ORD
1 stop6h 46m
Air Canada
Deal found 4/21$284
This Mytrip deal was found by Cheapflights users on 4/19. 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.
Sat 5/93:40 pm
ORD
-
YUL
Nonstop2h 24m
Air Canada
Mon 5/116:30 pm
YUL
-
ORD
Nonstop2h 38m
Air Canada
Deal found 4/19$288
This Air Canada deal was found by Cheapflights users on 4/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:35 pm
ORD
-
YUL
1 stop5h 57m
Air Canada
Fri 7/38:40 am
YUL
-
ORD
Nonstop2h 36m
Air Canada
Deal found 4/20$290
This Gotogate deal was found by Cheapflights users on 4/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:25 am
ORD
-
YUL
1 stop5h 20m
Air Canada
Wed 6/102:30 pm
YUL
-
ORD
1 stop6h 46m
Air Canada
Deal found 4/19$295

Find flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL). 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 April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Air Canada)

One-way from

$104
(FlipMilhas)

Popular in

December

Cheapest in

February

Average price

$281

Good round-trip deal

$496 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Montreal Pierre Elliott Trudeau Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Montreal Pierre Elliott Trudeau Intl flights.
Search Deals
From Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl
Search Deals
One-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Pierre Elliott Trudeau Intl 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 April 23, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 6/5

7:00 am-11:59 am

1 stop3h 59m

Montreal Pierre Elliott Trudeau Intl

Sun 6/7

12:48 pm-10:13 pm

1 stop10h 25m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/12

7:00 am-11:59 am

1 stop3h 59m

Montreal Pierre Elliott Trudeau Intl

Tue 5/19

9:30 am-4:34 pm

1 stop8h 04m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 6/18

6:40 am-5:45 pm

1 stop10h 05m

Montreal Pierre Elliott Trudeau Intl

Mon 6/22

6:00 am-1:04 pm

1 stop8h 04m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 5/27

7:05 am-1:39 pm

1 stop5h 34m

Montreal Pierre Elliott Trudeau Intl

Fri 6/5

6:51 pm-11:59 pm

1 stop6h 08m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/28

9:25 am-4:15 pm

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

12:40 pm-9:53 pm

1 stop10h 13m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 5/20

7:07 am-5:43 pm

1 stop9h 36m

Montreal Pierre Elliott Trudeau Intl

Sun 5/24

7:10 am-2:57 pm

1 stop8h 47m

$362

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/26

5:19 pm-11:13 pm

1 stop4h 54m

Montreal Pierre Elliott Trudeau Intl

Fri 5/29

7:00 am-4:56 pm

1 stop10h 56m

$362
Quickest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 5/15

2:27 pm-12:13 am

1 stop8h 46m

Montreal Pierre Elliott Trudeau Intl

Mon 5/18

9:45 am-11:28 am

Nonstop2h 43m

$375

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/14

7:07 am-5:43 pm

1 stop9h 36m

Montreal Pierre Elliott Trudeau Intl

Sun 5/17

12:40 pm-9:53 pm

1 stop10h 13m

$390

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/19

7:07 am-5:43 pm

1 stop9h 36m

Montreal Pierre Elliott Trudeau Intl

Fri 5/22

12:52 pm-6:05 pm

1 stop6h 13m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from O'Hare Intl to Pierre Elliott Trudeau Intl

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 O'Hare Intl to Pierre Elliott Trudeau Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport 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 O'Hare Intl to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from O'Hare Intl 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 O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $256). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of $462). 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 ORD to YUL?

Find hourly flight availability from O'Hare Intl to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.

It’s optimal to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport at noon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The best insider tips for Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
John Walton

John Walton

Expert on YUL

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated April 23, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. 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.
Delta
7.9
Good
8,444 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,444 reviews
Delta
7.9
Good
8,444 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,644 reviews
Delta
7.9
Good
8,444 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,664 reviews
Delta
7.9
Good
8,444 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,960 reviews
Delta
7.9
Good
8,444 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Pierre Elliott Trudeau Intl. 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 O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    For as low as $362, Delta can have you in Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport in 3h 59m. The distance between Chicago O'Hare Intl Airport and Montreal Pierre Elliott Trudeau Intl Airport is about 745 mi.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Flying on Delta is currently your cheapest option to Montreal Pierre Elliott Trudeau Intl Airport, with prices starting at $111. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at $149 and $159, respectively. Delta is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $64. Users have also found prices from $74 and $74 on American Airlines and United Airlines, respectively.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport are Avianca (89%), Qantas Airways (79%) and Porter Airlines (79%).

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

    On average you can expect to pay $1,028 for a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is $118 while the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $315.

  • Can I find deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl 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 O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $256). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of $462). 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

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Dorval

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover the top 4 airlines that operate flights from O'Hare Intl to Pierre Elliott Trudeau Intl. 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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$111Average$236FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$149Average$368FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$159Average$364FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$213Average$405FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights