$164+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to O'Hare Intl (ORD)
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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
Oct 25 — Nov 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Pierre Elliott Trudeau Intl to O'Hare 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 Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl are usually found in April or January, booked 83 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Pierre Elliott Trudeau Intl to O'Hare IntlExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
This Kissandfly.com deal was found by Cheapflights users on 9/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:10 pm -
1 stop5h 33m
Thu 11/127:05 am -
Nonstop2h 12m
Deal found 9/21![Air Canada logo]()
$283
This Trip.com deal was found by Cheapflights users on 9/21. 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.
Thu 10/299:10 am -
1 stop7h 28m
Sun 11/11:55 pm -
1 stop4h 51m
Deal found 9/21![Air Canada logo]()
$284
This Air Canada deal was found by Cheapflights users on 9/22. 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 11/66:10 pm -
Nonstop2h 42m
Sun 11/151:55 pm -
1 stop6h 50m
Deal found 9/22![Air Canada logo]()
$285
This SmartFares deal was found by Cheapflights users on 9/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:35 am -
Nonstop2h 37m
Sun 10/188:45 am -
Nonstop2h 15m
Deal found 9/23![Air Canada logo]()
$287
This Flightnetwork deal was found by Cheapflights users on 9/22. 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 10/66:30 pm -
Nonstop2h 42m
Tue 10/133:45 pm -
1 stop6h 36m
Deal found 9/22![Air Canada logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/56:00 am -
Nonstop3h 00m
Tue 11/107:00 am -
1 stop5h 28m
Deal found 9/21![United Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Sat 11/216:00 am -
Nonstop3h 00m
Thu 11/261:30 pm -
1 stop5h 18m
Deal found 9/22![United Airlines logo]()
$291
This Kissandfly.com deal was found by Cheapflights users on 9/22. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 am -
1 stop6h 55m
Fri 10/162:00 pm -
2 stops7h 15m
Deal found 9/22![Air Canada logo]()
$292
This flygcity.se deal was found by Cheapflights users on 9/22. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
1 stop5h 00m
Wed 10/217:30 am -
1 stop7h 40m
Deal found 9/22![Air Canada logo]()
$293
This Air Canada deal was found by Cheapflights users on 9/21. 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 10/169:10 am -
1 stop5h 13m
Sat 10/178:45 am -
Nonstop2h 15m
Deal found 9/21![Air Canada logo]()
$294
This Trip.com deal was found by Cheapflights users on 9/20. 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 10/108:45 am -
1 stop5h 40m
Sun 10/112:00 pm -
1 stop4h 45m
Deal found 9/20![Air Canada logo]()
$295
Best flights from Pierre Elliott Trudeau Intl to O'Hare IntlDiscover carefully curated flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 11/196:00 am -
Nonstop3h 00m
Mon 11/235:55 am -
1 stop8h 21m
Deal found 9/20![United Airlines logo]()
$304
This United deal was found by Cheapflights users on 9/21. 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.
Sun 11/227:00 am -
1 stop7h 54m
Wed 11/251:55 pm -
1 stop6h 50m
Deal found 9/21![Multiple Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/286:00 am -
Nonstop3h 00m
Sat 10/316:00 am -
1 stop6h 28m
Deal found 9/20![United Airlines logo]()
$304
This United deal was found by Cheapflights users on 9/21. 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 10/76:00 am -
1 stop5h 53m
Wed 10/142:00 pm -
1 stop6h 45m
Deal found 9/21![Multiple Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/226:00 am -
Nonstop3h 00m
Thu 11/2611:56 am -
1 stop8h 46m
Deal found 9/21![United Airlines logo]()
$304
This United deal was found by Cheapflights users on 9/20. 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 12/113:00 pm -
1 stop8h 27m
Mon 12/141:55 pm -
1 stop4h 51m
Deal found 9/20![Multiple Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/227:00 am -
1 stop15h 30m
Wed 11/255:55 am -
1 stop6h 33m
Deal found 9/21![United Airlines logo]()
$309
This United deal was found by Cheapflights users on 9/20. 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 10/63:25 pm -
1 stop7h 07m
Tue 10/139:55 am -
1 stop6h 26m
Deal found 9/20![Multiple Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 11/203:00 pm -
1 stop7h 30m
Mon 11/237:00 am -
1 stop5h 28m
Deal found 9/21![United Airlines logo]()
$309
This United deal was found by Cheapflights users on 9/22. 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 3/24:45 pm -
Nonstop3h 00m
Wed 3/32:00 pm -
1 stop6h 44m
Deal found 9/22![Multiple Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Tue 3/24:45 pm -
Nonstop3h 00m
Wed 3/310:40 am -
Nonstop2h 11m
Deal found 9/22![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/56:00 am -
Nonstop3h 00m
Tue 11/101:55 pm -
Nonstop2h 12m
Deal found 9/21![United Airlines logo]()
$321
Last-minute flights from Pierre Elliott Trudeau Intl to O'Hare IntlDiscover last-minute flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl. Data last updated September 25, 2026 and is based on user searches.
This Flightnetwork deal was found by Cheapflights users on 9/22. 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 10/66:30 pm -
Nonstop2h 42m
Tue 10/133:45 pm -
1 stop6h 36m
Deal found 9/22![Air Canada logo]()
$288
This Trip.com deal was found by Cheapflights users on 9/20. 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 10/108:45 am -
1 stop5h 40m
Sun 10/112:00 pm -
1 stop4h 45m
Deal found 9/20![Air Canada logo]()
$295
This Kissandfly.com deal was found by Cheapflights users on 9/22. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 am -
1 stop6h 55m
Fri 10/162:00 pm -
2 stops7h 15m
Deal found 9/22![Air Canada logo]()
$292
This flygcity.se deal was found by Cheapflights users on 9/22. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
1 stop5h 00m
Wed 10/217:30 am -
1 stop7h 40m
Deal found 9/22![Air Canada logo]()
$293
This United deal was found by Cheapflights users on 9/20. 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 10/159:45 am -
Nonstop2h 36m
Mon 10/192:00 pm -
1 stop6h 45m
Deal found 9/20![Multiple Airlines logo]()
$285
This SmartFares deal was found by Cheapflights users on 9/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:35 am -
Nonstop2h 37m
Sun 10/188:45 am -
Nonstop2h 15m
Deal found 9/23![Air Canada logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/156:10 am -
Nonstop2h 41m
Wed 10/2112:55 pm -
1 stop5h 50m
Deal found 9/21![United Airlines logo]()
$290
This Air Canada deal was found by Cheapflights users on 9/20. 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 10/159:10 am -
1 stop5h 13m
Mon 10/192:00 pm -
1 stop4h 45m
Deal found 9/20![Air Canada logo]()
$299
This Air Canada deal was found by Cheapflights users on 9/21. 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 10/169:10 am -
1 stop5h 13m
Sat 10/178:45 am -
Nonstop2h 15m
Deal found 9/21![Air Canada logo]()
$294
This FlightHub deal was found by Cheapflights users on 9/21. 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.
Mon 10/269:45 am -
1 stop8h 55m
Tue 10/2712:20 pm -
1 stop5h 45m
Deal found 9/21![Porter Airlines logo]()
$301
This Trip.com deal was found by Cheapflights users on 9/21. 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.
Thu 10/299:10 am -
1 stop7h 28m
Sun 11/11:55 pm -
1 stop4h 51m
Deal found 9/21![Air Canada logo]()
$284
One-way flights from Pierre Elliott Trudeau Intl to O'Hare IntlSearch for one-way flight options from Pierre Elliott Trudeau Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from Pierre Elliott Trudeau Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Jettzy deal was found by Cheapflights users on 9/20. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:25 am -
Nonstop2h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Air Canada logo]()
$164
This Booking.com deal was found by Cheapflights users on 9/22. 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.
Fri 10/236:30 pm -
Nonstop2h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Air Canada logo]()
$165
This Air Canada deal was found by Cheapflights users on 9/22. 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 11/219:25 am -
Nonstop2h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Air Canada logo]()
$167
This Super.com deal was found by Cheapflights users on 9/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:15 am -
1 stop10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![WestJet logo]()
$173
This American Airlines deal was found by Cheapflights users on 9/22. 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.
Thu 11/512:10 pm -
Nonstop3h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$175
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Sat 11/216:00 am -
Nonstop3h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Tue 1/264:45 pm -
Nonstop3h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$183
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Fri 11/207:00 am -
1 stop7h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$184
Find flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to O'Hare Intl (ORD). 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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Kissandfly.com) |
One-way from | $164 (Jettzy) |
Popular in | June |
Cheapest in | April |
Average price | $350 |
Good round-trip deal | $346 or less |
Good one-way deal | $290 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to O'Hare 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 25, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 10/6
9:45 am-11:21 am
Nonstop2h 36m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$167
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 10/21
6:10 am-7:51 am
Nonstop2h 41m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$167
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 11/20
6:00 am-1:59 pm
1 stop8h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$184
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 10/10
5:10 pm-8:30 pm
1 stop4h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$184
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 11/7
7:00 am-11:45 am
1 stop5h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$184
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 11/6
6:10 pm-7:52 pm
Nonstop2h 42m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sun 11/22
6:00 am-8:00 am
Nonstop3h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 11/24
6:00 am-8:00 am
Nonstop3h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 3/20
6:10 am-7:50 am
Nonstop2h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$190
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 11/25
3:00 pm-12:01 am
1 stop10h 01m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$192
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Pierre Elliott Trudeau Intl to O'Hare 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 Pierre Elliott Trudeau Intl to O'Hare Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare 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 Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare 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 Pierre Elliott Trudeau Intl to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Pierre Elliott Trudeau Intl with our price prediction graph.
YUL-ORD
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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Prices
Airlines
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (average of $264). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $462). 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 YUL to ORD?
Find hourly flight availability from Pierre Elliott Trudeau Intl to O'Hare 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 25, 2026.
It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport at noon. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the evening.
The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport trip
Our travel experts
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare 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 O'Hare Intl. Reviews last updated September 25, 2026.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, such as United Airlines,Air Canada, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to O'Hare 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 Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Des Plaines
Lake Geneva
Naperville
Glenview
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Aurora
Libertyville
Rockford
Hoffman Estates
Beloit
Orland Park
South Holland
Elgin
Racine
Janesville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Flights by cabin class
O'Hare Intl flight routes
Other flight options
Other flights from Pierre Elliott Trudeau Intl
Popular flights
Complete your trip
Complete your trip to O'Hare Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pierre Elliott Trudeau Intl to O'Hare Intl by cabin class
Find flights from Pierre Elliott Trudeau Intl to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Pierre Elliott Trudeau Intl and O'Hare Intl flights
Browse other Pierre Elliott Trudeau Intl and O'Hare Intl flight options. Last updated on September 25, 2026.
Other flights from Pierre Elliott Trudeau Intl
Browse through other flights departing from Pierre Elliott Trudeau Intl. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover the top 3 airlines that operate flights from Pierre Elliott Trudeau Intl to O'Hare 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$320 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$240 | Average$419 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$251 | Average$411 | FlexibilityNo cancel fee | On-time71% |