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Cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport from C$ 78

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
9 Jan — 16 Jan1
1 adult
1 adult, Economy, 0 bags

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 Monday or Friday and return on a Thursday

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

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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 10 December 2025.

Wed 24/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Sat 27/127:00 a.m.YUL - ORD
1 stop13h 45mAir Canada
Deal found 9/12C$ 414
Tue 23/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Thu 25/1210:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Deal found 8/12C$ 417
Wed 31/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Tue 6/110:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Deal found 9/12C$ 418
Tue 30/128:45 p.m.ORD - YUL
1 stop17h 39mAmerican Airlines
Wed 7/112:59 p.m.YUL - ORD
1 stop6h 35mAmerican Airlines
Deal found 9/12C$ 420
Wed 24/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Fri 26/127:00 a.m.YUL - ORD
1 stop9h 10mAir Canada
Deal found 8/12C$ 450
Thu 25/122:00 p.m.ORD - YUL
2 stops5h 50mAir Canada
Sat 27/128:30 a.m.YUL - ORD
1 stop10h 18mAir Canada
Deal found 8/12C$ 457
Wed 24/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Wed 31/128:00 a.m.YUL - ORD
1 stop6h 01mAir Canada
Deal found 8/12C$ 472
Thu 25/128:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Fri 26/1210:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Deal found 9/12C$ 476
Tue 23/128:30 p.m.ORD - YUL
1 stop10h 18mAir Canada
Sat 27/128:00 a.m.YUL - ORD
1 stop12h 45mAir Canada
Deal found 8/12C$ 482
Tue 23/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Sun 28/127:00 a.m.YUL - ORD
1 stop7h 01mAir Canada
Deal found 8/12C$ 492
Thu 25/128:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Thu 25/124:00 p.m.YUL - ORD
2 stops8h 44mAir Canada
Deal found 8/12C$ 493

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 10 December 2025.

Round-trip from

C$ 259

One-way from

C$ 78

Popular in

March

Cheapest in

September

Average price

C$ 590

Good round-trip deal

C$ 308 or less

Good one-way deal

C$ 108 or less
American Airlines
  • American Airlines
  • 9/2-11/2
  • Nonstop
  • 5h 18m total
  • Chicago to Montreal
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Air Canada
  • Air Canada
  • 9/2
  • Nonstop
  • 2h 05m total
  • Chicago to Montreal
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
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 629,999 searches. Data last updated 10 December 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

Sat 14/2

2:03 p.m.-11:10 p.m.

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

7:00 a.m.-4:54 p.m.

1 stop10h 54m

C$ 327

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 12/2

6:45 a.m.-4:53 p.m.

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:00 a.m.-9:41 a.m.

1 stop4h 41m

C$ 328

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 20/2

5:37 p.m.-11:26 p.m.

1 stop4h 49m

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

6:00 p.m.-11:57 p.m.

1 stop6h 57m

C$ 328

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 19/2

10:35 a.m.-3:55 p.m.

1 stop4h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

6:00 p.m.-11:57 p.m.

1 stop6h 57m

C$ 328

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

3:35 p.m.-6:40 p.m.

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

10:10 a.m.-3:10 p.m.

1 stop6h 00m

C$ 377

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 21/2

3:35 p.m.-6:40 p.m.

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Sat 28/2

8:00 a.m.-1:01 p.m.

1 stop6h 01m

C$ 402

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 29/1

6:50 a.m.-3:56 p.m.

1 stop8h 06m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

4:46 p.m.-9:05 p.m.

1 stop5h 19m

C$ 418

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 21/2

6:30 a.m.-12:02 p.m.

1 stop4h 32m

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

12:30 p.m.-8:57 p.m.

1 stop9h 27m

C$ 440

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Mon 9/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 78

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 4/2

3:35 p.m.-6:40 p.m.

Nonstop2h 05m

C$ 89

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 16 results
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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 5 December 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 C$ 143). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 392). 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 10 December 2025.

When flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 10 December 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,515 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,515 reviews
Air Canada
7.1
Good
10,515 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

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?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in 8h 07m. Fly via Delta to get the fastest option. Airlines will cover a distance of 1199 km.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    According to our current data, Air Canada (C$ 306), offers the cheapest pricing from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. This flight start at 42% lower than the current average price 3 months from now.

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

    Before booking your flight to Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: Republic Airways (85%), Porter Airlines (82%), Japan Airlines( 81%).

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport? While on average our users pay C$ 795, our data indicates the cheapest price to be C$ 108. The most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), is priced around C$ 270.

  • 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 C$ 143). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 392). 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

Travelling 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
Dorval
Cornwall
Sherbrooke
Trois-Rivières
Brossard
Montebello
Boucherville
Longueuil
Drummondville
Magog
Saint-Jean-sur-Richelieu
Bromont
North Hatley
Louiseville

Browse thousands of different options on Cheapflights for your next trip

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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 airline flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover the top airline 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 629,999 searches. Data last updated 10 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 341AverageC$ 585FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

When you search for this flight from O'Hare Intl to Pierre Elliott Trudeau Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Pierre Elliott Trudeau Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from O'Hare Intl to Pierre Elliott Trudeau Intl with no change fees?

Certainly. Search results for flights to Pierre Elliott Trudeau Intl from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Pierre Elliott Trudeau Intl become cheaper?

Yes, Cheapflights offers price alerts on O'Hare Intl to Pierre Elliott Trudeau Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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