$163+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to O'Hare Intl (ORD)
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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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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
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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 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 August 11, 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 August 11, 2026.
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Fri 9/257:30 am -
1 stop6h 51m
Mon 9/282:00 pm -
1 stop4h 45m
Deal found 8/10![Air Canada logo]()
$268
This SmartFares deal was found by Cheapflights users on 8/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 pm -
Nonstop2h 42m
Tue 9/223:40 pm -
Nonstop2h 15m
Deal found 8/7![Air Canada logo]()
$270
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Fri 9/42:35 pm -
1 stop7h 16m
Tue 9/82:00 pm -
1 stop6h 45m
Deal found 8/9![Air Canada logo]()
$271
This Air Canada deal was found by Cheapflights users on 8/9. 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 9/38:45 am -
1 stop5h 36m
Thu 9/107:25 am -
1 stop5h 20m
Deal found 8/9![Air Canada logo]()
$273
This Air Canada deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:10 am -
1 stop5h 12m
Sun 9/132:00 pm -
1 stop6h 45m
Deal found 8/10![Air Canada logo]()
$276
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Thu 8/278:40 am -
Nonstop2h 36m
Tue 9/18:40 am -
Nonstop2h 19m
Deal found 8/10![Air Canada logo]()
$277
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:30 am -
1 stop10h 42m
Sat 10/171:55 pm -
1 stop8h 30m
Deal found 8/10![Delta logo]()
$278
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Wed 11/251:10 pm -
Nonstop2h 42m
Sun 11/293:45 pm -
Nonstop2h 12m
Deal found 8/9![Air Canada logo]()
$279
This Air Canada deal was found by Cheapflights users on 8/7. 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 9/258:40 am -
Nonstop2h 35m
Sun 9/272:00 pm -
1 stop6h 45m
Deal found 8/7![Air Canada logo]()
$281
This Air Canada deal was found by Cheapflights users on 8/6. 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 10/226:30 pm -
Nonstop2h 42m
Sun 10/257:05 am -
Nonstop2h 12m
Deal found 8/6![Air Canada logo]()
$282
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Thu 10/154:30 pm -
1 stop4h 59m
Tue 10/208:45 am -
Nonstop2h 15m
Deal found 8/7![Air Canada logo]()
$283
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Thu 9/108:45 am -
1 stop5h 36m
Sun 9/138:45 am -
Nonstop2h 15m
Deal found 8/10![Air Canada logo]()
$284
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 August 11, 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 August 11, 2026.
This Delta deal was found by Cheapflights users on 8/8. 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 8/256:00 am -
1 stop8h 08m
Sat 8/295:18 pm -
1 stop5h 12m
Deal found 8/8![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 8/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:10 am -
Nonstop2h 41m
Sat 10/177:11 am -
Nonstop2h 29m
Deal found 8/10![United Airlines logo]()
$296
This United deal was found by Cheapflights users on 8/7. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:10 am -
Nonstop2h 41m
Tue 9/298:45 am -
Nonstop2h 15m
Deal found 8/7![Multiple Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 8/8. 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.
Wed 2/34:55 pm -
1 stop4h 42m
Sat 2/65:45 pm -
1 stop4h 25m
Deal found 8/8![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 8/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:45 am -
Nonstop2h 36m
Sat 10/177:11 am -
Nonstop2h 29m
Deal found 8/10![United Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am -
1 stop8h 38m
Sat 11/211:30 pm -
1 stop9h 28m
Deal found 8/10![Delta logo]()
$292
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/34:45 pm -
Nonstop2h 42m
Sat 2/65:50 pm -
Nonstop2h 11m
Deal found 8/7![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/7. 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.
Thu 11/127:00 am -
1 stop6h 20m
Sat 11/146:45 am -
1 stop5h 53m
Deal found 8/7![Delta logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:25 pm -
1 stop7h 50m
Sat 8/297:11 am -
Nonstop2h 29m
Deal found 8/6![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 8/7. 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.
Fri 8/286:51 pm -
1 stop6h 06m
Sat 9/51:50 pm -
1 stop9h 02m
Deal found 8/7![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am -
1 stop5h 42m
Fri 9/41:59 pm -
1 stop8h 31m
Deal found 8/9![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 8/7. 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.
Fri 8/216:00 am -
1 stop5h 42m
Mon 8/2412:29 pm -
1 stop10h 11m
Deal found 8/7![Delta logo]()
$318
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 August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl. Data last updated August 11, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Thu 8/278:40 am -
Nonstop2h 36m
Tue 9/18:40 am -
Nonstop2h 19m
Deal found 8/10![Air Canada logo]()
$277
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Sat 8/296:30 pm -
Nonstop2h 35m
Sun 8/303:40 pm -
Nonstop2h 23m
Deal found 8/10![Air Canada logo]()
$279
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:00 am -
1 stop8h 09m
Tue 10/2012:29 pm -
1 stop9h 53m
Deal found 8/10![Delta logo]()
$278
This Air Canada deal was found by Cheapflights users on 8/9. 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 9/38:45 am -
1 stop5h 36m
Thu 9/107:25 am -
1 stop5h 20m
Deal found 8/9![Air Canada logo]()
$273
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Fri 9/42:35 pm -
1 stop7h 16m
Tue 9/82:00 pm -
1 stop6h 45m
Deal found 8/9![Air Canada logo]()
$271
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Sat 9/51:15 pm -
Nonstop2h 40m
Tue 9/82:00 pm -
1 stop4h 45m
Deal found 8/10![Air Canada logo]()
$283
This Air Canada deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:10 am -
1 stop5h 12m
Sun 9/132:00 pm -
1 stop6h 45m
Deal found 8/10![Air Canada logo]()
$276
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Thu 9/108:45 am -
1 stop5h 36m
Sun 9/138:45 am -
Nonstop2h 15m
Deal found 8/10![Air Canada logo]()
$284
This SmartFares deal was found by Cheapflights users on 8/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 pm -
Nonstop2h 42m
Tue 9/223:40 pm -
Nonstop2h 15m
Deal found 8/7![Air Canada logo]()
$270
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Fri 9/257:30 am -
1 stop6h 51m
Mon 9/282:00 pm -
1 stop4h 45m
Deal found 8/10![Air Canada logo]()
$268
This Air Canada deal was found by Cheapflights users on 8/7. 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 9/258:40 am -
Nonstop2h 35m
Sun 9/272:00 pm -
1 stop6h 45m
Deal found 8/7![Air Canada logo]()
$281
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 August 11, 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 August 11, 2026.
This Air Canada deal was found by Cheapflights users on 8/10. 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 8/254:30 pm -
1 stop5h 11m
Deal found 8/10![Air Canada logo]()
$163
This Air Canada deal was found by Cheapflights users on 8/6. 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.
Wed 8/268:45 am -
1 stop5h 36m
Deal found 8/6![Air Canada logo]()
$164
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Wed 9/26:30 pm -
Nonstop2h 35m
Deal found 8/7![Air Canada logo]()
$168
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Wed 9/96:30 pm -
Nonstop2h 42m
Deal found 8/10![Air Canada logo]()
$169
This FlightHub deal was found by Cheapflights users on 8/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/612:40 pm -
1 stop5h 50m
Deal found 8/6![Porter Airlines logo]()
$171
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:50 pm -
1 stop6h 02m
Deal found 8/10![Delta logo]()
$172
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:45 am -
Nonstop2h 36m
Deal found 8/7![United Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 8/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:45 am -
Nonstop2h 36m
Deal found 8/10![United Airlines logo]()
$175
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Sun 8/309:10 am -
1 stop5h 12m
Deal found 8/7![Air Canada logo]()
$176
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Mon 10/56:30 pm -
Nonstop2h 42m
Deal found 8/7![Air Canada logo]()
$177
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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (Air Canada) |
One-way from | $163 (Air Canada) |
Popular in | June |
Cheapest in | April |
Average price | $390 |
Good round-trip deal | $415 or less |
Good one-way deal | $248 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 2,558,603 searches. Data last updated August 11, 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
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 8/25
6:00 am-1:08 pm
1 stop8h 08m
Chicago O'Hare Intl
Sat 8/29
5:18 pm-11:30 pm
1 stop5h 12m
$284
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 2/3
4:55 pm-8:37 pm
1 stop4h 42m
Chicago O'Hare Intl
Sat 2/6
5:45 pm-11:10 pm
1 stop4h 25m
$285
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 11/17
7:00 am-2:38 pm
1 stop8h 38m
Chicago O'Hare Intl
Sat 11/21
1:30 pm-11:58 pm
1 stop9h 28m
$292
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 9/5
6:10 am-7:51 am
Nonstop2h 41m
Chicago O'Hare Intl
Sat 10/17
7:11 am-10:40 am
Nonstop2h 29m
$296
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
9:45 am-11:21 am
Nonstop2h 36m
Chicago O'Hare Intl
Sat 10/17
7:11 am-10:40 am
Nonstop2h 29m
$296
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 9/12
6:10 am-7:51 am
Nonstop2h 41m
Chicago O'Hare Intl
Tue 9/29
8:45 am-12:00 pm
Nonstop2h 15m
$298
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 11/12
7:00 am-12:20 pm
1 stop6h 20m
Chicago O'Hare Intl
Sat 11/14
6:45 am-1:38 pm
1 stop5h 53m
$301
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 8/28
6:51 pm-11:57 pm
1 stop6h 06m
Chicago O'Hare Intl
Sat 9/5
1:50 pm-11:52 pm
1 stop9h 02m
$301
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 9/2
6:00 am-10:42 am
1 stop5h 42m
Chicago O'Hare Intl
Fri 9/4
1:59 pm-11:30 pm
1 stop8h 31m
$302
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 8/21
6:00 am-10:42 am
1 stop5h 42m
Chicago O'Hare Intl
Mon 8/24
12:29 pm-11:40 pm
1 stop10h 11m
$318
Showing 1-10 of 23 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 August.
| 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 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
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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 August 11, 2026.
It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in the afternoon. By choosing this option you can save up to 47% 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 August 11, 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,American Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Oct 2025
YUL - ORD
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Oct 2025
YUL - ORD
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Oct 2025
YUL - ORD
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Oct 2025
YUL - 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
Schaumburg
Naperville
Lake Geneva
Oak Brook
Oakbrook Terrace
Delavan
South Holland
Libertyville
Gurnee
Orland Park
Hoffman Estates
Beloit
Rockford
Aurora
Racine
Great Lakes
Janesville
Joliet
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Pierre Elliott Trudeau Intl and O'Hare Intl flights
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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 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$324 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$189 | Average$399 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$410 | FlexibilityNo cancel fee | On-time69% |