$151+ Cheap flights from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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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
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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 Thursday
Cheap flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau IntlExplore 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 9, 2026.
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 9, 2026.
This Air Canada deal was found by Cheapflights users on 9/4. 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 9/268:45 am -
Nonstop2h 15m
Sat 9/262:10 pm -
1 stop6h 38m
Deal found 9/4![Air Canada logo]()
$316
This Air Canada deal was found by Cheapflights users on 9/8. 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 10/92:00 pm -
1 stop6h 45m
Thu 10/158:35 am -
Nonstop2h 37m
Deal found 9/8![Air Canada logo]()
$317
This Flightnetwork deal was found by Cheapflights users on 9/4. 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 10/22:00 pm -
1 stop4h 45m
Tue 10/64:10 pm -
1 stop4h 38m
Deal found 9/4![Air Canada logo]()
$319
This Flightnetwork deal was found by Cheapflights users on 9/8. 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 10/92:00 pm -
1 stop6h 45m
Mon 10/127:30 am -
1 stop6h 55m
Deal found 9/8![Air Canada logo]()
$320
This Air Canada deal was found by Cheapflights users on 9/8. 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 10/103:40 pm -
Nonstop2h 21m
Sun 10/118:35 am -
Nonstop2h 37m
Deal found 9/8![Air Canada logo]()
$321
This flugladen.de deal was found by Cheapflights users on 9/4. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:05 am -
Nonstop2h 15m
Mon 10/265:34 pm -
Nonstop2h 45m
Deal found 9/4![Multiple Airlines logo]()
$323
This Sembo deal was found by Cheapflights users on 9/8. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:00 pm -
2 stops7h 33m
Mon 10/59:10 am -
1 stop5h 13m
Deal found 9/8![Air Canada logo]()
$324
This Air Canada deal was found by Cheapflights users on 9/7. 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 10/92:00 pm -
1 stop6h 45m
Sun 10/118:35 am -
Nonstop2h 37m
Deal found 9/7![Air Canada logo]()
$327
This Gotogate deal was found by Cheapflights users on 9/4. 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 11/1812:20 pm -
1 stop5h 45m
Fri 11/209:45 am -
1 stop8h 55m
Deal found 9/4![Porter Airlines logo]()
$328
This FlightHub deal was found by Cheapflights users on 9/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:20 pm -
1 stop5h 45m
Sun 11/159:45 am -
1 stop8h 55m
Deal found 9/5![Porter Airlines logo]()
$330
Best flights from O'Hare Intl to Pierre Elliott Trudeau IntlDiscover carefully curated flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This United deal was found by Cheapflights users on 9/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 am -
1 stop10h 10m
Mon 10/198:35 am -
Nonstop2h 37m
Deal found 9/4![Multiple Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:05 am -
1 stop7h 53m
Thu 11/196:00 am -
1 stop8h 59m
Deal found 9/6![Delta logo]()
$379
This Porter Airlines deal was found by Cheapflights users on 9/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:20 pm -
1 stop5h 45m
Tue 11/179:45 am -
1 stop8h 55m
Deal found 9/8![Porter Airlines logo]()
$428
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:00 pm -
2 stops7h 13m
Thu 10/89:45 am -
Nonstop2h 36m
Deal found 9/4![Air Canada logo]()
$472
This United deal was found by Cheapflights users on 9/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:54 pm -
Nonstop2h 23m
Sat 11/2811:10 am -
1 stop5h 28m
Deal found 9/5![Multiple Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 37m
Tue 10/136:00 am -
1 stop7h 59m
Deal found 9/4![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:44 pm -
1 stop7h 43m
Thu 11/1912:50 pm -
1 stop6h 40m
Deal found 9/8![Delta logo]()
$400
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:29 am -
1 stop6h 29m
Tue 11/176:00 am -
1 stop5h 39m
Deal found 9/8![Delta logo]()
$400
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:05 am -
1 stop3h 47m
Fri 11/206:00 am -
1 stop8h 59m
Deal found 9/6![Delta logo]()
$400
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 37m
Mon 10/126:00 am -
1 stop7h 59m
Deal found 9/6![Delta logo]()
$465
Last-minute flights from O'Hare Intl to Pierre Elliott Trudeau IntlDiscover last-minute flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl. Data last updated September 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 9/8. 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.
Tue 9/158:45 am -
Nonstop2h 15m
Tue 9/225:00 am -
1 stop5h 00m
Deal found 9/8![Air Canada logo]()
$378
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Fri 9/182:00 pm -
1 stop6h 45m
Sun 9/208:40 am -
Nonstop2h 35m
Deal found 9/4![Air Canada logo]()
$357
This Air Canada deal was found by Cheapflights users on 9/8. 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 9/183:40 pm -
Nonstop2h 15m
Mon 9/218:40 am -
Nonstop2h 35m
Deal found 9/8![Air Canada logo]()
$399
This Air Canada deal was found by Cheapflights users on 9/4. 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 9/198:45 am -
Nonstop2h 15m
Tue 9/221:15 pm -
Nonstop2h 37m
Deal found 9/4![Air Canada logo]()
$345
This Air Canada deal was found by Cheapflights users on 9/5. 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 9/197:25 am -
1 stop5h 20m
Sun 9/278:40 am -
Nonstop2h 35m
Deal found 9/5![Air Canada logo]()
$403
One-way flights from O'Hare Intl to Pierre Elliott Trudeau IntlSearch for one-way flight options from O'Hare Intl to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from O'Hare Intl to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Air Canada deal was found by Cheapflights users on 9/5. 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 3/62:00 pm -
1 stop6h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Air Canada logo]()
$151
This Air Canada deal was found by Cheapflights users on 9/6. 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 10/17:25 am -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Air Canada logo]()
$152
This Air Canada deal was found by Cheapflights users on 9/5. 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 10/79:55 am -
1 stop6h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Air Canada logo]()
$153
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.
Mon 10/267:05 am -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$157
This Air Canada deal was found by Cheapflights users on 9/4. 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.
Mon 11/210:15 am -
2 stops9h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Air Canada logo]()
$158
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$160
This Air Canada deal was found by Cheapflights users on 9/7. 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 10/108:45 am -
Nonstop2h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Air Canada logo]()
$161
This Air Canada deal was found by Cheapflights users on 9/8. 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 10/39:55 am -
2 stops7h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Air Canada logo]()
$164
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Air Canada) |
One-way from | $151 (Air Canada) |
Popular in | December |
Cheapest in | February |
Average price | $379 |
Good round-trip deal | $377 or less |
Good one-way deal | $240 or less |
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 7,457,451 searches. Data last updated September 9, 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
Cheapest round-trip
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Wed 11/4
12:20 pm-7:05 pm
1 stop5h 45m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$152
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Wed 10/7
11:30 am-6:58 pm
1 stop6h 28m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$156
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Thu 10/8
6:00 am-1:37 pm
1 stop6h 37m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Fri 12/25
11:43 am-3:07 pm
Nonstop2h 24m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$161
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Thu 12/3
12:20 pm-7:05 pm
1 stop5h 45m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$166
Quickest round-trip
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Sat 10/31
10:37 am-2:00 pm
Nonstop2h 23m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Wed 10/28
5:54 pm-9:17 pm
Nonstop2h 23m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Thu 9/24
7:25 am-1:45 pm
1 stop5h 20m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Tue 10/13
5:00 am-4:10 pm
1 stop10h 10m
Montreal Pierre Elliott Trudeau Intl
Mon 10/19
8:35 am-10:12 am
Nonstop2h 37m
$371
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Tue 11/24
5:54 pm-9:17 pm
Nonstop2h 23m
Montreal Pierre Elliott Trudeau Intl
Sat 11/28
11:10 am-3:38 pm
1 stop5h 28m
$375
Showing 1-10 of 18 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
ORD-YUL
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
Prices
Airlines
Delays
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 $476). 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 9, 2026.
It’s optimal to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the evening.
How often are flights from Chicago to Montreal delayed?
About 20% of weekly flights between Chicago and Montreal have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Chicago to Montreal flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Sunday 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, American Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
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
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 9, 2026.
Read reviews from past customers who have flown Porter Airlines,Delta, andUnited 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.
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Food
7.6
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
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.
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O'Hare Intl and Pierre Elliott Trudeau Intl flights
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Top 5 airlines flying from O'Hare Intl to Pierre Elliott Trudeau Intl
Discover the top 5 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$236 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$152 | Average$383 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$153 | Average$435 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$160 | Average$315 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$339 | Average$461 | FlexibilityNo cancel fee | On-time71% |