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Pierre Elliott Trudeau Intl

$105+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in October or September, booked 45 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap 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 September 11, 2025.

Round-trip from

$247
(Flightnetwork)

One-way from

$105
(Gotogate)

Popular in

December

Cheapest in

October

Average price

$310

Good round-trip deal

$453 or less

Good one-way deal

$177 or less
From Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl
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One-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl
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Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
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Find 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 September 11, 2025.

This Flightnetwork deal was found by Cheapflights users on 9/9. 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.
Thu 10/2310:40 amORD - YUL
Nonstop2h 14mAir Canada
Mon 10/279:25 amYUL - ORD
Nonstop2h 53mAir Canada
Deal found 9/9$247
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Fri 10/248:40 amORD - YUL
Nonstop2h 14mAir Canada
Fri 10/319:25 amYUL - ORD
Nonstop2h 53mAir Canada
Deal found 9/9$253
This Air Canada deal was found by Cheapflights users on 9/9. 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 12/57:15 amORD - YUL
Nonstop2h 05mAir Canada
Fri 12/51:10 pmYUL - ORD
1 stop7h 20mAir Canada
Deal found 9/9$261

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 September 11, 2025.
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

O'Hare Intl

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 10/3

7:11 am-10:40 am

Nonstop2h 29m

Montreal Pierre Elliott Trudeau Intl

Fri 10/3

2:20 pm-7:58 pm

1 stop6h 38m

$299

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 12/7

6:45 am-3:53 pm

1 stop8h 08m

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

12:50 pm-8:31 pm

1 stop8h 41m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 10/2

6:45 am-5:50 pm

1 stop10h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:20 am-12:00 pm

1 stop6h 40m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 12/7

6:45 am-5:24 pm

1 stop9h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 12/9

6:00 am-9:55 am

1 stop4h 55m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 11/21

6:45 am-5:21 pm

1 stop9h 36m

Montreal Pierre Elliott Trudeau Intl

Wed 11/26

7:00 am-3:26 pm

1 stop9h 26m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 10/11

4:09 pm-11:48 pm

1 stop6h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 10/14

12:55 pm-8:23 pm

1 stop8h 28m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 9/30

7:00 am-4:05 pm

1 stop8h 05m

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

7:00 am-4:31 pm

1 stop10h 31m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 12/3

10:46 am-3:53 pm

1 stop4h 07m

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

12:39 pm-9:53 pm

1 stop10h 14m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 12/5

1:10 pm-11:59 pm

1 stop9h 49m

Montreal Pierre Elliott Trudeau Intl

Tue 12/9

7:00 am-12:05 pm

1 stop6h 05m

$307

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 10/2

7:11 am-10:40 am

Nonstop2h 29m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:15 am-8:01 am

Nonstop2h 46m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 23 results
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The best insider tips for Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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
Airports
ORD

For a quick departure, consider using the "L" train to avoid Chicago traffic delays when heading to ORD.

Read more about ORDby Ramsey Qubein
YUL

Use the ArriveCAN app to fill out your arrival declaration card on the plane for a smoother entry at YUL.

Read more about YULby John Walton
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

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

John Walton

John Walton

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

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?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Pierre Elliott Trudeau Intl. Price data was last updated on August 29, 2025.

Booking 45 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, January 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 $270). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 September 11, 2025.

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 27% on the cost of your flight, compared to a flight in the morning.

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 September 11, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Air Canada 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.
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 $299, United Airlines can have you in Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport in 2h 29m. The distance between Chicago O'Hare Intl Airport and Montreal Pierre Elliott Trudeau Intl Airport is about 745 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Air Canada is currently your cheapest option to Montreal Pierre Elliott Trudeau Intl Airport, with prices starting at $162. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $192 and $215, respectively. Air Canada is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • 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 Republic Airways (82%), Alaska Airlines (82%) and Copa Airlines (77%).

  • 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 $773 for a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is $74 while the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $274.

  • 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, January 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 $270). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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
Brossard
Sherbrooke
Dorval

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Alternative routes for O'Hare Intl to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Pierre Elliott Trudeau Intl flights

Top 3 airlines flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover the top 3 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$162Average$396FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$192Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$215Average$379FlexibilityNo cancel feeOn-time69%

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