Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 252
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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — CHI
29 Nov — 6 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Chicago are usually found in March or February, booked 88 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from Pierre Elliott Trudeau Intl to Chicago
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Pierre Elliott Trudeau Intl to Chicago
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.
Sun 22/1110:10 a.m. -
1 stop6h 28m
Fri 27/1110:15 a.m. -
2 stops9h 38m
Deal found 27/10C$ 407
Thu 24/128:50 a.m. -
2 stops7h 48m
Fri 1/112:50 p.m. -
2 stops7h 03m
Deal found 26/10C$ 408
Thu 19/118:45 a.m. -
1 stop5h 35m
Thu 26/111:55 p.m. -
Nonstop2h 12m
Deal found 26/10C$ 410
Sat 14/1111:10 a.m. -
1 stop5h 28m
Sun 15/117:05 a.m. -
Nonstop2h 12m
Deal found 25/10C$ 415
Thu 19/1111:10 a.m. -
1 stop5h 28m
Mon 23/113:50 p.m. -
Nonstop2h 15m
Deal found 27/10C$ 417
Sat 21/116:10 p.m. -
Nonstop2h 42m
Wed 25/111:55 p.m. -
1 stop6h 50m
Deal found 25/10C$ 418
Tue 15/127:00 a.m. -
1 stop6h 24m
Sun 27/121:26 p.m. -
1 stop9h 03m
Deal found 25/10C$ 421
Thu 12/1112:50 p.m. -
1 stop6h 14m
Mon 16/111:05 p.m. -
1 stop9h 43m
Deal found 26/10C$ 421
Thu 17/129:45 a.m. -
1 stop8h 55m
Mon 28/1212:15 p.m. -
1 stop5h 51m
Deal found 25/10C$ 422
Wed 25/1112:10 p.m. -
Nonstop3h 05m
Sat 28/118:08 a.m. -
Nonstop2h 18m
Deal found 27/10C$ 425
Wed 18/119:45 a.m. -
1 stop8h 55m
Sun 22/1112:15 p.m. -
1 stop5h 50m
Deal found 26/10C$ 428
Thu 3/126:00 a.m. -
1 stop4h 37m
Sun 6/126:41 p.m. -
1 stop3h 52m
Deal found 28/10C$ 452
Best flights from Pierre Elliott Trudeau Intl to Chicago
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.
Sat 10/49:45 a.m. -
1 stop8h 55m
Mon 12/412:20 p.m. -
1 stop5h 45m
Deal found 25/10C$ 439
Fri 27/116:00 a.m. -
Nonstop3h 00m
Sun 6/1210:37 a.m. -
Nonstop2h 23m
Deal found 25/10C$ 445
Fri 20/116:00 a.m. -
Nonstop3h 00m
Mon 23/113:50 p.m. -
Nonstop2h 15m
Deal found 28/10C$ 466
Fri 20/116:00 a.m. -
1 stop7h 51m
Mon 23/116:00 a.m. -
1 stop10h 27m
Deal found 28/10C$ 469
Fri 27/116:00 a.m. -
Nonstop3h 00m
Tue 8/125:54 p.m. -
Nonstop2h 23m
Deal found 25/10C$ 445
Sun 15/116:00 a.m. -
1 stop8h 59m
Wed 18/116:49 a.m. -
1 stop9h 38m
Deal found 28/10C$ 470
Thu 26/116:00 a.m. -
Nonstop3h 00m
Mon 30/117:05 a.m. -
Nonstop2h 12m
Deal found 29/10C$ 480
Wed 11/1112:44 p.m. -
1 stop7h 21m
Fri 13/113:59 p.m. -
1 stop6h 49m
Deal found 27/10C$ 470
Fri 20/116:00 a.m. -
Nonstop3h 00m
Mon 23/115:55 a.m. -
1 stop8h 21m
Deal found 29/10C$ 473
Thu 17/124:45 p.m. -
Nonstop3h 00m
Sat 9/11:55 p.m. -
1 stop6h 50m
Deal found 28/10C$ 488
Wed 11/119:40 a.m. -
1 stop8h 08m
Sat 14/1112:38 p.m. -
1 stop9h 52m
Deal found 28/10C$ 470
Wed 25/112:13 p.m. -
1 stop10h 49m
Tue 1/128:52 a.m. -
1 stop5h 24m
Deal found 29/10C$ 483
Wed 11/116:00 a.m. -
1 stop4h 46m
Mon 16/116:44 p.m. -
1 stop3h 43m
Deal found 27/10C$ 470
Tue 8/127:00 a.m. -
1 stop6h 04m
Wed 9/125:12 p.m. -
1 stop5h 36m
Deal found 26/10C$ 481
Thu 19/117:00 a.m. -
1 stop5h 59m
Mon 23/115:29 p.m. -
1 stop5h 01m
Deal found 26/10C$ 481
Wed 25/116:00 a.m. -
1 stop8h 59m
Sun 29/116:49 a.m. -
1 stop9h 38m
Deal found 29/10C$ 492
Wed 25/116:00 a.m. -
1 stop4h 46m
Mon 30/1112:30 p.m. -
1 stop10h 00m
Deal found 29/10C$ 492
Tue 24/116:00 a.m. -
1 stop4h 46m
Sun 29/116:00 a.m. -
1 stop10h 27m
Deal found 26/10C$ 520
Mon 23/116:00 a.m. -
1 stop4h 46m
Sun 29/116:00 a.m. -
1 stop10h 27m
Deal found 26/10C$ 520
Mon 23/116:00 a.m. -
1 stop4h 46m
Thu 26/1112:05 p.m. -
1 stop6h 42m
Deal found 26/10C$ 520
Thu 28/16:40 p.m. -
1 stop6h 15m
Sun 31/16:40 p.m. -
1 stop3h 46m
Deal found 28/10C$ 550
Sat 3/46:00 a.m. -
1 stop7h 33m
Tue 6/49:30 a.m. -
1 stop5h 29m
Deal found 28/10C$ 550
Direct flights from Pierre Elliott Trudeau Intl to Chicago
Explore direct flight options from Pierre Elliott Trudeau Intl to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.
Tue 15/121:10 p.m. -
Nonstop2h 52m
Wed 6/17:05 a.m. -
Nonstop2h 12m
Deal found 25/10C$ 417
Tue 10/116:10 p.m. -
Nonstop2h 42m
Tue 17/117:05 a.m. -
Nonstop2h 12m
Deal found 27/10C$ 424
Wed 25/1112:10 p.m. -
Nonstop3h 05m
Sat 28/118:08 a.m. -
Nonstop2h 18m
Deal found 27/10C$ 425
Thu 19/116:10 p.m. -
Nonstop2h 42m
Mon 23/113:50 p.m. -
Nonstop2h 15m
Deal found 26/10C$ 427
Sat 21/111:10 p.m. -
Nonstop2h 42m
Thu 26/117:05 a.m. -
Nonstop2h 12m
Deal found 26/10C$ 434
Thu 18/26:10 p.m. -
Nonstop2h 42m
Sun 21/23:45 p.m. -
Nonstop2h 12m
Deal found 25/10C$ 436
Fri 25/126:00 a.m. -
Nonstop3h 08m
Fri 1/17:05 a.m. -
Nonstop2h 12m
Deal found 27/10C$ 438
Sun 22/116:00 a.m. -
Nonstop3h 00m
Fri 27/115:54 p.m. -
Nonstop2h 23m
Deal found 27/10C$ 445
Sun 22/119:25 a.m. -
Nonstop2h 42m
Fri 27/117:05 a.m. -
Nonstop2h 12m
Deal found 27/10C$ 446
Sat 21/116:00 a.m. -
Nonstop3h 00m
Mon 23/113:50 p.m. -
Nonstop2h 15m
Deal found 28/10C$ 449
Tue 24/116:10 p.m. -
Nonstop2h 42m
Tue 1/127:05 a.m. -
Nonstop2h 12m
Deal found 26/10C$ 450
Thu 3/126:10 p.m. -
Nonstop2h 42m
Sun 6/127:05 a.m. -
Nonstop2h 12m
Deal found 29/10C$ 452
Last-minute flights from Pierre Elliott Trudeau Intl to Chicago
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Chicago. Data last updated 30 October 2026 and is based on user searches.
Tue 10/117:00 a.m. -
1 stop6h 20m
Tue 17/1112:38 p.m. -
1 stop9h 52m
Deal found 27/10C$ 421
Wed 11/117:10 a.m. -
1 stop5h 40m
Thu 12/111:05 p.m. -
1 stop9h 43m
Deal found 28/10C$ 469
Thu 12/1112:50 p.m. -
1 stop6h 14m
Mon 16/111:05 p.m. -
1 stop9h 43m
Deal found 26/10C$ 421
Sat 14/1111:10 a.m. -
1 stop5h 28m
Sun 15/117:05 a.m. -
Nonstop2h 12m
Deal found 25/10C$ 415
Wed 18/119:10 a.m. -
1 stop5h 03m
Tue 24/1112:50 p.m. -
2 stops7h 03m
Deal found 26/10C$ 408
Wed 18/119:45 a.m. -
1 stop8h 55m
Sun 22/1112:15 p.m. -
1 stop5h 50m
Deal found 26/10C$ 428
Thu 19/118:45 a.m. -
1 stop5h 35m
Thu 26/111:55 p.m. -
Nonstop2h 12m
Deal found 26/10C$ 410
Thu 19/1111:10 a.m. -
1 stop5h 28m
Mon 23/113:50 p.m. -
Nonstop2h 15m
Deal found 27/10C$ 417
Thu 19/116:00 a.m. -
1 stop4h 46m
Mon 23/111:31 p.m. -
1 stop8h 56m
Deal found 25/10C$ 460
Sat 21/116:10 p.m. -
Nonstop2h 42m
Wed 25/111:55 p.m. -
1 stop6h 50m
Deal found 25/10C$ 418
Sun 22/1110:10 a.m. -
1 stop6h 28m
Fri 27/1110:15 a.m. -
2 stops9h 38m
Deal found 27/10C$ 407
Wed 25/1112:10 p.m. -
Nonstop3h 05m
Sat 28/118:08 a.m. -
Nonstop2h 18m
Deal found 27/10C$ 425
One-way flights from Pierre Elliott Trudeau Intl to Chicago
Search for one-way flight options from Pierre Elliott Trudeau Intl to Chicago. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.
Wed 18/111:10 p.m. -
Nonstop2h 52m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 25/10C$ 252
Sat 21/1112:10 p.m. -
Nonstop3h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 255
Mon 9/119:25 a.m. -
Nonstop2h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 26/10C$ 256
Fri 27/116:00 a.m. -
1 stop6h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 256
Sat 21/116:00 a.m. -
Nonstop3h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 30/10C$ 259
Thu 19/116:10 p.m. -
Nonstop2h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 25/10C$ 260
Thu 12/1110:10 a.m. -
1 stop6h 28m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 266
Wed 25/1112:10 p.m. -
Nonstop3h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 269
Thu 12/117:00 a.m. -
1 stop11h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 270
Tue 5/16:00 a.m. -
1 stop8h 17m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 270
Mon 14/1211:10 a.m. -
1 stop5h 28m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 273
Fri 20/116:00 a.m. -
Nonstop3h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 274
Find flight deals from Pierre Elliott Trudeau Intl to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Chicago (CHI). 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 30 October 2026.
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Chicago 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 30 October 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 21/11
6:00 a.m.-8:00 a.m.
Nonstop3h 00m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
Quickest round-trip
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 12/12
6:10 p.m.-7:52 p.m.
Nonstop2h 42m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 269
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 24/12
1:10 p.m.-2:52 p.m.
Nonstop2h 42m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 270
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 20/11
6:00 a.m.-8:00 a.m.
Nonstop3h 00m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 274
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 12/11
12:44 p.m.-8:49 p.m.
1 stop9h 05m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 277
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sun 15/11
6:00 a.m.-1:59 p.m.
1 stop8h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 277
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 25/11
6:00 a.m.-1:59 p.m.
1 stop8h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 277
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 12/12
2:53 p.m.-11:56 p.m.
1 stop10h 03m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 277
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway
YULMDW
Montreal Pierre Elliott Trudeau Intl
Tue 15/12
6:00 a.m.-1:01 p.m.
1 stop8h 01m
Chicago Midway
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 277
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway
YULMDW
Montreal Pierre Elliott Trudeau Intl
Mon 14/12
7:00 a.m.-4:16 p.m.
1 stop10h 16m
Chicago Midway
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 287
Flights are sorted by cheapest round-trip flights first.
Deals found on 30/10
Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
...
5
Best time to book a flight from Pierre Elliott Trudeau Intl to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Pierre Elliott Trudeau Intl with our price prediction graph.
YUL-CHI
YUL-ORD
YUL-MDW
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
YUL-CHI
YUL-ORD
YUL-MDW
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of C$ 385). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in December is currently the most expensive (average of C$ 571). 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 CHI?
Find hourly flight availability from Pierre Elliott Trudeau Intl to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.
When flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 58% versus a flight at noon.
How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Airfare is typical for this route at the moment.
Montreal Pierre Elliott Trudeau Intl Airport to Chicago flights typically cost between C$ 394 and C$ 641 in February.The cheapest round-trip price found within the last 5 days was C$ 400 on Porter Airlines (18 Feb-22 Feb).
What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Share of one-stop round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago chosen by Cheapflights users in the past 12 months, using the same layover each way.
Toronto (YTZ) – chosen by Cheapflights users on 90% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to Chicago on Cheapflights.
What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 308.
What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Shortest average travel time for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 4h 27m.
Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Average layover duration for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 18m.
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 30 October 2026.
See what other customers who have flown with Porter Airlines,United Airlines, andAir Canada from Montreal Pierre Elliott Trudeau Intl Airport to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in 3h. Fly via Porter Airlines, United Airlines, or Delta to get the fastest option. The distance between Montreal Pierre Elliott Trudeau Intl Airport and Chicago is about 1199 km. This flight may include one or multiple stops.
What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago round-trip?
Currently priced at C$ 229, Porter Airlines will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from C$ 261 and C$ 267, respectively. These flights start at 50% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as C$ 234. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago for a low price.
What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago on time: ANA (84%), Emirates (81%), Qatar Airways (77%).
What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Looking at all options, your cheapest flight can be booked for C$ 298. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl) can be booked for C$ 334 on average, our data indicates C$ 1,320 when flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago.
Can I find deals for flights from Pierre Elliott Trudeau Intl to Chicago that include hotel bookings?
Yes. In addition to deals on Pierre Elliott Trudeau Intl to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Pierre Elliott Trudeau Intl to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Chicago.
Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Chicago?
Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of C$ 385). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in December is currently the most expensive (average of C$ 571). 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.
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.
Airlines
Alternative routes
Chicago flight routes
Complete your trip
Direct flights to Illinois
Flights by cabin class
Other flight options
Other flights from Pierre Elliott Trudeau Intl
Popular flights
Fly from Pierre Elliott Trudeau Intl to Chicago on these airlines
Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to Chicago. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Search flights from Pierre Elliott Trudeau Intl to Chicago by cabin class
Find flights from Pierre Elliott Trudeau Intl to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Browse through other flights departing from Pierre Elliott Trudeau Intl. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Top 4 airlines flying from Pierre Elliott Trudeau Intl to Chicago
Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl to Chicago. 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 30 October 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Chicago?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chicago from Pierre Elliott Trudeau Intl today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Chicago?
Millions of users choose and trust Cheapflights to book the best flight deals from Pierre Elliott Trudeau Intl to Chicago for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Chicago with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Pierre Elliott Trudeau Intl to Chicago flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Chicago become cheaper?
Not ready to book yet? You can track prices for flights from Pierre Elliott Trudeau Intl to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.