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Pierre Elliott Trudeau Intl

$56+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 September or January, booked 45 days in advance, depart on a Thursday or Saturday 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 December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/9. 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.
Wed 12/248:30 pmORD - YUL
1 stop4h 23mAir Canada
Sat 12/277:00 amYUL - ORD
1 stop13h 45mAir Canada
Deal found 12/9$299
This Air Canada deal was found by Cheapflights users on 12/11. 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 12/312:00 pmORD - YUL
1 stop4h 22mAir Canada
Tue 1/611:10 amYUL - ORD
1 stop5h 00mAir Canada
Deal found 12/11$302
This Air Canada deal was found by Cheapflights users on 12/11. 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 12/2510:00 amORD - YUL
1 stop4h 23mAir Canada
Wed 12/318:50 amYUL - ORD
2 stops7h 20mAir Canada
Deal found 12/11$307
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:00 amORD - YUL
1 stop4h 46mUnited Airlines
Sun 12/285:25 pmYUL - ORD
1 stop17h 19mUnited Airlines
Deal found 12/9$357
This Air Canada deal was found by Cheapflights users on 12/10. 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.
Sun 12/288:30 pmORD - YUL
1 stop4h 23mAir Canada
Mon 1/126:25 pmYUL - ORD
Nonstop2h 45mAir Canada
Deal found 12/10$365
This Air Canada deal was found by Cheapflights users on 12/11. 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.
Sat 12/278:30 pmORD - YUL
1 stop4h 23mAir Canada
Thu 1/110:10 amYUL - ORD
1 stop6h 00mAir Canada
Deal found 12/11$373
This Air Canada deal was found by Cheapflights users on 12/11. 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 12/268:30 pmORD - YUL
1 stop4h 23mAir Canada
Wed 12/318:00 amYUL - ORD
1 stop6h 01mAir Canada
Deal found 12/11$375
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/316:02 pmORD - YUL
1 stop16h 56mWestJet
Tue 1/67:30 pmYUL - ORD
1 stop21h 52mWestJet
Deal found 12/10$376

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$198
(American Airlines)

One-way from

$56
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$426

Good round-trip deal

$577 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.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Montreal Pierre Elliott Trudeau Intl flights.
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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. 9% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in December 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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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 December 12, 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

Thu 2/5

6:15 am-1:42 pm

1 stop6h 27m

Montreal Pierre Elliott Trudeau Intl

Sun 2/8

6:00 am-9:41 am

1 stop4h 41m

$236

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 2/20

6:30 am-3:55 pm

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

7:00 am-4:50 pm

1 stop10h 50m

$236

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 2/12

6:45 am-4:53 pm

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Sun 2/15

6:00 am-9:41 am

1 stop4h 41m

$237

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 2/14

2:03 pm-11:10 pm

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

Sat 2/21

6:00 am-9:41 am

1 stop4h 41m

$237

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 2/19

10:35 am-3:55 pm

1 stop4h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

6:00 pm-11:57 pm

1 stop6h 57m

$237

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 2/17

6:45 am-4:53 pm

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

6:00 pm-11:57 pm

1 stop6h 57m

$237

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 2/14

6:15 am-1:40 pm

1 stop6h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 2/17

7:00 am-1:34 pm

1 stop7h 34m

$237

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 2/21

7:15 am-10:20 am

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 2/22

9:25 am-11:06 am

Nonstop2h 41m

$272

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 2/20

3:35 pm-6:40 pm

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

10:10 am-3:10 pm

1 stop6h 00m

$272

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 2/21

6:30 am-12:02 pm

1 stop4h 32m

Montreal Pierre Elliott Trudeau Intl

Sun 2/22

6:00 pm-11:57 pm

1 stop6h 57m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results
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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 December.
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 O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. eDreams >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 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 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?

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 December 5, 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, April 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 $103). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport 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 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 December 12, 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 23% on the cost of your flight, compared to a flight in the morning.

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
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

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 December 12, 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
9,095 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,048 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,514 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 $236, Delta can have you in Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport in 6h 27m. 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 United Airlines is currently your cheapest option to Montreal Pierre Elliott Trudeau Intl Airport, with prices starting at $126. Additional round-trip tickets that might be worth considering are offered by Air Canada and American Airlines, with the lowest prices starting at $142 and $192, respectively. United Airlines is priced at 67% 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 American Airlines. According to our data, you can fly for as low as $74. Users have also found prices from $74 and $95 on United Airlines and Air Canada, 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 Republic Airways (85%), Porter Airlines (82%) and Japan Airlines (81%).

  • 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 $963 for a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is $142 while the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $197.

  • 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, April 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 $103). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport 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

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
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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$148Average$372FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$161Average$394FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$192Average$405FlexibilityNo cancel feeOn-time71%

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