$142+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
Aug 11 — Aug 181
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
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 Monday 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 July 12, 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 July 12, 2026.
This Trip.com deal was found by Cheapflights users on 7/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:25 am
ORD
- YUL
1 stop5h 20m
Air Canada
Sat 9/126:30 pm
YUL
- ORD
Nonstop2h 42m
Air Canada
Deal found 7/11![Air Canada logo]()
$259
This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:40 pm
ORD
- YUL
Nonstop2h 23m
Air Canada
Mon 8/316:30 pm
YUL
- ORD
Nonstop2h 35m
Air Canada
Deal found 7/10![Air Canada logo]()
$266
This Booking.com deal was found by Cheapflights users on 7/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:40 am
ORD
- YUL
Nonstop2h 19m
Air Canada
Mon 8/248:40 am
YUL
- ORD
Nonstop2h 36m
Air Canada
Deal found 7/11![Air Canada logo]()
$267
This Air Canada deal was found by Cheapflights users on 7/8. 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.
Wed 7/292:00 pm
ORD
- YUL
1 stop6h 47m
Air Canada
Thu 7/308:40 am
YUL
- ORD
Nonstop2h 36m
Air Canada
Deal found 7/8![Air Canada logo]()
$270
This Mytrip deal was found by Cheapflights users on 7/12. 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 8/262:00 pm
ORD
- YUL
1 stop6h 47m
Air Canada
Wed 9/22:30 pm
YUL
- ORD
1 stop7h 11m
Air Canada
Deal found 7/12![Air Canada logo]()
$275
This Air Canada deal was found by Cheapflights users on 7/7. 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 8/153:40 pm
ORD
- YUL
Nonstop2h 23m
Air Canada
Sun 8/165:00 am
YUL
- ORD
1 stop5h 00m
Air Canada
Deal found 7/7![Air Canada logo]()
$278
This Flightnetwork deal was found by Cheapflights users on 7/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:25 am
ORD
- YUL
1 stop5h 22m
Air Canada
Tue 9/12:30 pm
YUL
- ORD
1 stop7h 11m
Air Canada
Deal found 7/11![Air Canada logo]()
$281
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 July 12, 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 July 12, 2026.
This Delta deal was found by Cheapflights users on 7/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:59 am
ORD
- YUL
1 stop8h 21m
Delta
Sun 9/66:00 am
YUL
- ORD
1 stop8h 36m
Delta
Deal found 7/11![Delta logo]()
$341
This United deal was found by Cheapflights users on 7/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ORD
- YUL
1 stop6h 09m
Multiple Airlines
Mon 8/36:30 pm
YUL
- ORD
Nonstop2h 35m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:58 pm
ORD
- YUL
Nonstop2h 28m
United Airlines
Sun 8/26:10 am
YUL
- ORD
Nonstop2h 40m
United Airlines
Deal found 7/8![United Airlines logo]()
$434
This United deal was found by Cheapflights users on 7/11. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:25 pm
ORD
- YUL
1 stop6h 41m
Multiple Airlines
Sat 8/12:30 pm
YUL
- ORD
1 stop7h 11m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 7/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:07 pm
ORD
- YUL
1 stop8h 18m
Delta
Fri 7/3112:47 pm
YUL
- ORD
1 stop8h 44m
Delta
Deal found 7/11![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:50 pm
ORD
- YUL
Nonstop2h 11m
United Airlines
Sat 11/286:10 am
YUL
- ORD
Nonstop2h 40m
United Airlines
Deal found 7/8![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:58 pm
ORD
- YUL
Nonstop2h 28m
United Airlines
Sun 8/26:10 am
YUL
- ORD
Nonstop2h 40m
United Airlines
Deal found 7/8![United Airlines logo]()
$434
This United deal was found by Cheapflights users on 7/8. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/285:50 pm
ORD
- YUL
Nonstop2h 11m
Multiple Airlines
Wed 12/303:00 pm
YUL
- ORD
1 stop4h 55m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:56 pm
ORD
- YUL
Nonstop2h 30m
United Airlines
Sun 8/169:45 am
YUL
- ORD
Nonstop2h 36m
United Airlines
Deal found 7/8![United Airlines logo]()
$460
This United deal was found by Cheapflights users on 7/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:29 am
ORD
- YUL
1 stop4h 53m
Multiple Airlines
Tue 8/48:40 am
YUL
- ORD
Nonstop2h 36m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$471
This United deal was found by Cheapflights users on 7/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:25 am
ORD
- YUL
1 stop7h 57m
Multiple Airlines
Sun 8/26:10 am
YUL
- ORD
Nonstop2h 40m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$471
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 July 12, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl. Data last updated July 12, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 7/8. 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.
Wed 7/292:00 pm
ORD
- YUL
1 stop6h 47m
Air Canada
Thu 7/308:40 am
YUL
- ORD
Nonstop2h 36m
Air Canada
Deal found 7/8![Air Canada logo]()
$270
This Air Canada deal was found by Cheapflights users on 7/10. 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.
Tue 8/411:05 am
ORD
- YUL
Nonstop2h 18m
Air Canada
Tue 8/44:30 pm
YUL
- ORD
1 stop5h 11m
Air Canada
Deal found 7/10![Air Canada logo]()
$292
This Air Canada deal was found by Cheapflights users on 7/7. 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 8/153:40 pm
ORD
- YUL
Nonstop2h 23m
Air Canada
Sun 8/165:00 am
YUL
- ORD
1 stop5h 00m
Air Canada
Deal found 7/7![Air Canada logo]()
$278
This Booking.com deal was found by Cheapflights users on 7/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:40 am
ORD
- YUL
Nonstop2h 19m
Air Canada
Mon 8/248:40 am
YUL
- ORD
Nonstop2h 36m
Air Canada
Deal found 7/11![Air Canada logo]()
$267
This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:40 pm
ORD
- YUL
Nonstop2h 23m
Air Canada
Mon 8/316:30 pm
YUL
- ORD
Nonstop2h 35m
Air Canada
Deal found 7/10![Air Canada logo]()
$266
This Flightnetwork deal was found by Cheapflights users on 7/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:00 pm
ORD
- YUL
1 stop6h 47m
Air Canada
Tue 9/11:15 pm
YUL
- ORD
Nonstop2h 40m
Air Canada
Deal found 7/11![Air Canada logo]()
$281
This Mytrip deal was found by Cheapflights users on 7/12. 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 8/262:00 pm
ORD
- YUL
1 stop6h 47m
Air Canada
Wed 9/22:30 pm
YUL
- ORD
1 stop7h 11m
Air Canada
Deal found 7/12![Air Canada logo]()
$275
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 July 12, 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 July 12, 2026.
This Delta deal was found by Cheapflights users on 7/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:18 pm
ORD
- YUL
1 stop5h 12m
Delta
Deal found 7/11![Delta logo]()
$142
This Air Canada deal was found by Cheapflights users on 7/12. 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 8/82:00 pm
ORD
- YUL
2 stops7h 20m
Air Canada
Deal found 7/12![Air Canada logo]()
$143
This Air Canada deal was found by Cheapflights users on 7/9. 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.
Thu 10/82:15 pm
ORD
- YUL
1 stop4h 36m
Air Canada
Deal found 7/9![Air Canada logo]()
$145
This Flightnetwork deal was found by Cheapflights users on 7/9. 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.
Fri 7/245:35 pm
ORD
- YUL
1 stop4h 47m
Air Canada
Deal found 7/9![Air Canada logo]()
$147
This Delta deal was found by Cheapflights users on 7/8. 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 10/68:36 am
ORD
- YUL
1 stop9h 23m
Delta
Deal found 7/8![Delta logo]()
$148
This Air Canada deal was found by Cheapflights users on 7/11. 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 1/712:50 pm
ORD
- YUL
2 stops7h 03m
Air Canada
Deal found 7/11![Air Canada logo]()
$151
This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:18 am
ORD
- YUL
Nonstop2h 25m
Porter Airlines
Deal found 7/9![Porter Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:20 pm
ORD
- YUL
1 stop4h 50m
Porter Airlines
Deal found 7/7![Porter Airlines logo]()
$154
This Air Canada deal was found by Cheapflights users on 7/12. 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 8/311:05 am
ORD
- YUL
Nonstop2h 18m
Air Canada
Deal found 7/12![Air Canada logo]()
$158
This American Airlines deal was found by Cheapflights users on 7/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:59 pm
ORD
- YUL
1 stop12h 47m
American Airlines
Deal found 7/7![American Airlines logo]()
$161
This Delta deal was found by Cheapflights users on 7/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:59 pm
ORD
- YUL
1 stop8h 31m
Delta
Deal found 7/7![Delta logo]()
$162
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 July 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $259 (Trip.com) |
One-way from | $142 (Delta) |
Popular in | December |
Cheapest in | February |
Average price | $371 |
Good round-trip deal | $347 or less |
Good one-way deal | $171 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 2,558,603 searches. Data last updated July 12, 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 - YUL
ORDYUL
Chicago O'Hare Intl
Fri 9/4
6:59 am-4:20 pm
1 stop8h 21m
Montreal Pierre Elliott Trudeau Intl
Sun 9/6
6:00 am-1:36 pm
1 stop8h 36m
$341
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Wed 7/29
6:00 am-1:09 pm
1 stop6h 09m
Montreal Pierre Elliott Trudeau Intl
Mon 8/3
6:30 pm-8:05 pm
Nonstop2h 35m
$385
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Sat 7/25
2:25 pm-10:06 pm
1 stop6h 41m
Montreal Pierre Elliott Trudeau Intl
Sat 8/1
2:30 pm-8:41 pm
1 stop7h 11m
$390
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Mon 7/27
2:07 pm-11:25 pm
1 stop8h 18m
Montreal Pierre Elliott Trudeau Intl
Fri 7/31
12:47 pm-8:31 pm
1 stop8h 44m
$424
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Thu 7/30
5:58 pm-9:26 pm
Nonstop2h 28m
Montreal Pierre Elliott Trudeau Intl
Sun 8/2
6:10 am-7:50 am
Nonstop2h 40m
$434
Quickest round-trip
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Wed 11/25
5:50 pm-9:01 pm
Nonstop2h 11m
Montreal Pierre Elliott Trudeau Intl
Sat 11/28
6:10 am-7:50 am
Nonstop2h 40m
$434
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Sun 7/26
5:58 pm-9:26 pm
Nonstop2h 28m
Montreal Pierre Elliott Trudeau Intl
Sun 8/2
6:10 am-7:50 am
Nonstop2h 40m
$434
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Thu 8/13
5:56 pm-9:26 pm
Nonstop2h 30m
Montreal Pierre Elliott Trudeau Intl
Sun 8/16
9:45 am-11:21 am
Nonstop2h 36m
$460
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Mon 12/28
5:50 pm-9:01 pm
Nonstop2h 11m
Montreal Pierre Elliott Trudeau Intl
Wed 12/30
3:00 pm-6:55 pm
1 stop4h 55m
$466
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Thu 7/30
10:29 am-4:22 pm
1 stop4h 53m
Montreal Pierre Elliott Trudeau Intl
Tue 8/4
8:40 am-10:16 am
Nonstop2h 36m
$471
Showing 1-10 of 23 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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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 $475). 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 July 12, 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 18% 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 14% 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 July 12, 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.
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Boarding
8.2
Entertainment
6.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
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.
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 locationsLongueuil
Laval
Dorval
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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 2,558,603 searches. Data last updated July 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$236 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$152 | Average$379 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$159 | Average$416 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$160 | Average$332 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$192 | Average$444 | FlexibilityNo cancel fee | On-time71% |