$144+ Cheap flights from O'Hare Intl (ORD) to Montreal (YMQ)
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YMQ
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to Montreal 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 are usually found in November or April, booked 44 days in advance, depart on a Thursday or Monday and return on a Thursday
Cheap flight deals from O'Hare Intl to Montreal
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to MontrealExplore the most affordable flight options available from O'Hare Intl to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
Explore the most affordable flight options available from O'Hare Intl to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
This Air Canada deal was found by Cheapflights users on 8/12. 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.
Tue 9/811:05 am -
Nonstop2h 15m
Tue 9/84:30 pm -
1 stop5h 11m
Deal found 8/12![Air Canada logo]()
$241
This iWofly deal was found by Cheapflights users on 8/14. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:00 pm -
1 stop6h 45m
Wed 9/238:40 am -
Nonstop2h 35m
Deal found 8/14![Air Canada logo]()
$248
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:45 pm -
1 stop5h 05m
Mon 9/218:40 am -
Nonstop2h 35m
Deal found 8/10![Air Canada logo]()
$252
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Wed 9/22:00 pm -
1 stop6h 47m
Thu 9/38:40 am -
Nonstop2h 36m
Deal found 8/11![Air Canada logo]()
$270
This Gotogate deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:05 am -
Nonstop2h 15m
Sun 9/138:40 am -
Nonstop2h 35m
Deal found 8/13![Air Canada logo]()
$302
This Air Canada deal was found by Cheapflights users on 8/13. 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 8/293:40 pm -
Nonstop2h 28m
Tue 9/16:30 pm -
Nonstop2h 35m
Deal found 8/13![Air Canada logo]()
$312
Best flights from O'Hare Intl to MontrealDiscover carefully curated flight deals from O'Hare Intl to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from O'Hare Intl to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This Delta deal was found by Cheapflights users on 8/11. 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 9/52:30 pm -
1 stop8h 00m
Tue 9/87:00 am -
1 stop10h 37m
Deal found 8/11![Delta logo]()
$346
This United deal was found by Cheapflights users on 8/14. 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 9/88:45 am -
1 stop4h 55m
Tue 9/86:30 pm -
Nonstop2h 42m
Deal found 8/14![Multiple Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 8/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:56 pm -
Nonstop2h 30m
Tue 9/84:55 pm -
Nonstop2h 48m
Deal found 8/11![United Airlines logo]()
$368
This Air Canada deal was found by Cheapflights users on 8/14. 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 10/162:00 pm -
1 stop6h 45m
Sun 10/187:30 am -
1 stop6h 49m
Deal found 8/14![Air Canada logo]()
$385
This Delta deal was found by Cheapflights users on 8/11. 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 9/41:59 pm -
1 stop8h 31m
Tue 9/86:00 am -
1 stop7h 59m
Deal found 8/11![Delta logo]()
$371
This Delta deal was found by Cheapflights users on 8/11. 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.
Sun 8/306:59 am -
1 stop3h 57m
Wed 9/99:30 am -
1 stop8h 00m
Deal found 8/11![Delta logo]()
$371
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop9h 10m
Sun 9/138:45 am -
1 stop5h 36m
Deal found 8/10![Multiple Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/242:01 pm -
Nonstop2h 29m
Tue 9/299:45 am -
Nonstop2h 36m
Deal found 8/13![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 8/14. 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 10/96:30 am -
1 stop10h 08m
Mon 10/1212:50 pm -
1 stop8h 40m
Deal found 8/14![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/87:11 am -
Nonstop2h 29m
Sun 10/116:10 am -
Nonstop2h 41m
Deal found 8/14![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 8/13. 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.
Sun 8/236:40 am -
1 stop10h 06m
Wed 8/269:30 am -
1 stop10h 42m
Deal found 8/13![Delta logo]()
$468
This Delta deal was found by Cheapflights users on 8/11. 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 9/41:59 pm -
1 stop8h 31m
Mon 9/76:00 am -
1 stop8h 08m
Deal found 8/11![Delta logo]()
$478
Last-minute flights from O'Hare Intl to MontrealDiscover last-minute flight deals from O'Hare Intl to Montreal. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Montreal. Data last updated August 15, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/14. 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 8/193:40 pm -
Nonstop2h 23m
Wed 9/21:15 pm -
Nonstop2h 40m
Deal found 8/14![Air Canada logo]()
$390
This Air Canada deal was found by Cheapflights users on 8/12. 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 8/228:40 am -
Nonstop2h 19m
Tue 9/11:15 pm -
Nonstop2h 40m
Deal found 8/12![Air Canada logo]()
$398
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.
Sun 8/2311:05 am -
Nonstop2h 23m
Sat 8/296:30 pm -
Nonstop2h 35m
Deal found 8/9![Air Canada logo]()
$344
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.
Mon 8/242:00 pm -
1 stop6h 47m
Tue 8/258:40 am -
Nonstop2h 36m
Deal found 8/10![Air Canada logo]()
$364
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.
Mon 8/243:40 pm -
Nonstop2h 23m
Fri 8/286:30 pm -
Nonstop2h 35m
Deal found 8/10![Air Canada logo]()
$368
One-way flights from O'Hare Intl to MontrealSearch for one-way flight options from O'Hare Intl to Montreal. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from O'Hare Intl to Montreal. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/91:51 pm -
1 stop8h 59m
Deal found 8/11![Delta logo]()
$144
This SmartFares deal was found by Cheapflights users on 8/14. 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.
Sat 9/2611:05 am -
Nonstop2h 15m
Deal found 8/14![Air Canada logo]()
$145
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Fri 9/1111:05 am -
Nonstop2h 15m
Deal found 8/13![Air Canada logo]()
$148
This SmartFares deal was found by Cheapflights users on 8/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:25 am -
2 stops7h 13m
Deal found 8/12![Air Canada logo]()
$150
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Thu 9/1011:05 am -
Nonstop2h 15m
Deal found 8/13![Air Canada logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:11 am -
2 stops16h 14m
Deal found 8/11![Multiple Airlines logo]()
$153
This Jettzy deal was found by Cheapflights users on 8/11. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:25 am -
2 stops7h 13m
Deal found 8/11![Air Canada logo]()
$154
This Mytrip deal was found by Cheapflights users on 8/13. 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 9/162:00 pm -
1 stop6h 45m
Deal found 8/13![Air Canada logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Wed 11/1111:45 am -
1 stop6h 20m
Deal found 8/13![Porter Airlines logo]()
$156
This United Airlines deal was found by Cheapflights users on 8/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:56 pm -
Nonstop2h 30m
Deal found 8/11![United Airlines logo]()
$158
Find flight deals from O'Hare Intl to Montreal
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Montreal (YMQ). 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 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $241 (Air Canada) |
One-way from | $144 (Delta) |
Popular in | December |
Cheapest in | November |
Average price | $410 |
Good round-trip deal | $388 or less |
Good one-way deal | $216 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Montreal 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 15, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Sat 9/5
2:30 pm-11:30 pm
1 stop8h 00m
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
7:00 am-4:37 pm
1 stop10h 37m
$346
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Tue 9/8
8:45 am-2:40 pm
1 stop4h 55m
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
6:30 pm-8:12 pm
Nonstop2h 42m
$346
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Sat 9/5
5:56 pm-9:26 pm
Nonstop2h 30m
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
4:55 pm-6:43 pm
Nonstop2h 48m
$368
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Fri 9/4
1:59 pm-11:30 pm
1 stop8h 31m
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
6:00 am-12:59 pm
1 stop7h 59m
$371
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Sun 8/30
6:59 am-11:56 am
1 stop3h 57m
Montreal Pierre Elliott Trudeau Intl
Wed 9/9
9:30 am-4:30 pm
1 stop8h 00m
$371
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Fri 10/16
2:00 pm-9:45 pm
1 stop6h 45m
Montreal Pierre Elliott Trudeau Intl
Sun 10/18
7:30 am-1:19 pm
1 stop6h 49m
$385
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Thu 9/10
6:00 am-4:10 pm
1 stop9h 10m
Montreal Pierre Elliott Trudeau Intl
Sun 9/13
8:45 am-1:21 pm
1 stop5h 36m
$417
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Fri 10/9
6:30 am-5:38 pm
1 stop10h 08m
Montreal Pierre Elliott Trudeau Intl
Mon 10/12
12:50 pm-8:30 pm
1 stop8h 40m
$427
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Sun 8/23
6:40 am-5:46 pm
1 stop10h 06m
Montreal Pierre Elliott Trudeau Intl
Wed 8/26
9:30 am-7:12 pm
1 stop10h 42m
$468
ChicagoMontreal
ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl
ORDYUL
Chicago O'Hare Intl
Fri 9/4
1:59 pm-11:30 pm
1 stop8h 31m
Montreal Pierre Elliott Trudeau Intl
Mon 9/7
6:00 am-1:08 pm
1 stop8h 08m
$478
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to Montreal
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 Montreal in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Montreal 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 flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Montreal 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 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 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 Montreal
Have a flexible travel schedule? Discover the best time to fly to Montreal from O'Hare Intl with our price prediction graph.
ORD-YMQ
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
ORD-YMQ
ORD-YUL
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Montreal?
Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal (average of $273). Flying from Chicago O'Hare Intl Airport to Montreal in December is currently the most expensive (average of $467). 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 YMQ?
Find hourly flight availability from O'Hare Intl to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 15, 2026.
When flying from Chicago O'Hare Intl Airport to Montreal, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 17% versus a flight in the evening.
Weekly flight availability from Chicago O'Hare Intl Airport to Montreal
Explore weekly flight availability from O'Hare Intl to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 15, 2026.
The most flights from ORD to YMQ are scheduled on a Wednesday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).
How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Montreal?
Airfare is below average for this route at the moment.
Chicago O'Hare Intl Airport to Montreal flights typically cost between $364 and $537 in September.The cheapest round-trip price found within the last 5 days was $241 on Air Canada (Sep 8-Sep 8).
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 141 minutes.
What is the most punctual flight time for Chicago to Montreal flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Montreal flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Montreal?
The best time to book flights from Chicago O'Hare Intl Airport to Montreal is 55 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.
Reviews of airlines servicing Montreal
Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated August 15, 2026.
Get a feel of what it's like to fly with Porter Airlines,Delta, andUnited Airlines from Chicago O'Hare Intl Airport to Montreal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Comfort
8.0
Entertainment
6.9
Overall
8.0
Food
7.5
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for O'Hare Intl to Montreal
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Complete your trip to Montreal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from O'Hare Intl to Montreal by cabin class
Find flights from O'Hare Intl to Montreal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Montreal
Explore flights to Montreal departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
O'Hare Intl and Montreal flights
Browse other O'Hare Intl and Montreal flight options. Last updated on August 15, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from O'Hare Intl to Montreal
Discover the top 5 airlines that operate flights from O'Hare Intl to Montreal. 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$236 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$378 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$159 | Average$428 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$160 | Average$315 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$336 | Average$461 | FlexibilityNo cancel fee | On-time71% |