Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 226
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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — CHI
11 Jan — 18 Jan1
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 September or May, booked 78 days in advance, depart on a Thursday or Friday and return on a Monday
Cheap flight deals from Pierre Elliott Trudeau Intl to Chicago
Enter your travel dates to find the best prices.
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 12 December 2025.
Sat 27/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 23/211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 11/12C$ 328
Thu 25/129:10 a.m.YUL - ORD
1 stop4h 51mAir Canada
Sun 28/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Deal found 11/12C$ 376
Thu 25/128:50 a.m.YUL - ORD
2 stops7h 20mAir Canada
Tue 30/122:00 p.m.ORD - YUL
2 stops5h 50mAir Canada
Deal found 11/12C$ 388
Thu 25/1210:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Sat 3/18:40 p.m.ORD - YUL
1 stop4h 13mAir Canada
Deal found 9/12C$ 401
Wed 31/128:30 a.m.YUL - ORD
1 stop7h 40mAir Canada
Wed 7/18:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Deal found 9/12C$ 405
Thu 25/125:25 p.m.YUL - ORD
1 stop17h 19mUnited Airlines
Sun 28/129:15 p.m.ORD - YUL
1 stop9h 30mUnited Airlines
Deal found 9/12C$ 414
Wed 31/128:30 a.m.YUL - ORD
1 stop7h 40mAir Canada
Fri 9/112:50 p.m.ORD - YUL
Nonstop2h 11mAir Canada
Deal found 9/12C$ 426
Tue 30/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 5/14:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 10/12C$ 432
Wed 31/128:30 a.m.YUL - ORD
1 stop7h 40mAir Canada
Sun 11/18:00 a.m.ORD - YUL
1 stop5h 22mAir Canada
Deal found 9/12C$ 436
Wed 31/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Tue 6/111:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 11/12C$ 450
Wed 31/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sat 3/111:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 11/12C$ 452
Tue 30/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sun 11/111:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 9/12C$ 480
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 12 December 2025.
Wed 18/29:25 a.m.YUL - ORD
Nonstop2h 41mAir Canada
Sun 22/212:50 p.m.ORD - YUL
Nonstop2h 11mAir Canada
Deal found 11/12C$ 259
Sat 14/28:55 a.m.YUL - MDW
1 stop3h 55mPorter Airlines
Tue 17/211:00 a.m.MDW - YUL
1 stop6h 45mPorter Airlines
Deal found 10/12C$ 259
Thu 5/23:50 p.m.YUL - ORD
Nonstop3h 00mAmerican Airlines
Sun 8/211:50 a.m.ORD - YUL
Nonstop2h 18mAmerican Airlines
Deal found 11/12C$ 268
Thu 12/26:00 a.m.YUL - ORD
1 stop4h 41mDelta
Sun 15/26:30 a.m.ORD - YUL
1 stop4h 32mDelta
Deal found 10/12C$ 297
Thu 15/16:00 a.m.YUL - ORD
Nonstop3h 05mUnited Airlines
Sun 18/17:10 a.m.ORD - YUL
1 stop5h 18mUnited Airlines
Deal found 10/12C$ 412
Sun 15/26:00 a.m.YUL - ORD
1 stop4h 41mDelta
Thu 19/27:10 a.m.ORD - YUL
1 stop5h 26mDelta
Deal found 10/12C$ 297
Fri 20/26:00 p.m.YUL - ORD
1 stop6h 57mDelta
Mon 23/212:05 p.m.ORD - YUL
1 stop5h 30mDelta
Deal found 9/12C$ 297
Sat 14/26:00 a.m.YUL - ORD
1 stop4h 41mDelta
Tue 17/26:15 a.m.ORD - YUL
1 stop6h 25mDelta
Deal found 9/12C$ 297
Tue 21/46:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sun 26/411:00 a.m.MDW - YUL
1 stop6h 45mPorter Airlines
Deal found 11/12C$ 361
Tue 17/27:00 a.m.YUL - MDW
1 stop5h 59mDelta
Wed 18/21:28 p.m.MDW - YUL
1 stop8h 42mDelta
Deal found 10/12C$ 297
Sat 14/38:55 a.m.YUL - MDW
1 stop3h 55mPorter Airlines
Tue 17/311:00 a.m.MDW - YUL
1 stop6h 45mPorter Airlines
Deal found 11/12C$ 370
Thu 29/16:00 a.m.YUL - ORD
Nonstop3h 05mUnited Airlines
Sun 1/28:52 a.m.ORD - YUL
1 stop5h 24mUnited Airlines
Deal found 10/12C$ 414
Mon 4/51:10 p.m.YUL - MDW
1 stop4h 14mPorter Airlines
Sun 10/59:40 a.m.MDW - YUL
1 stop7h 25mPorter Airlines
Deal found 11/12C$ 394
Mon 5/16:45 a.m.YUL - MDW
1 stop4h 25mPorter Airlines
Thu 8/111:05 a.m.MDW - YUL
1 stop5h 40mPorter Airlines
Deal found 9/12C$ 400
Tue 17/26:00 a.m.YUL - MDW
1 stop7h 46mDelta
Thu 19/26:00 a.m.MDW - YUL
1 stop9h 53mDelta
Deal found 10/12C$ 376
Fri 6/36:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 9/311:00 a.m.MDW - YUL
1 stop5h 45mPorter Airlines
Deal found 11/12C$ 408
Fri 24/410:15 a.m.YUL - MDW
1 stop6h 05mPorter Airlines
Mon 27/44:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 10/12C$ 412
Mon 26/16:00 a.m.YUL - MDW
1 stop7h 46mDelta
Mon 2/21:26 p.m.MDW - YUL
1 stop8h 46mDelta
Deal found 11/12C$ 415
Sat 24/17:00 a.m.YUL - ORD
1 stop10h 59mDelta
Sat 31/17:00 a.m.ORD - YUL
1 stop5h 31mDelta
Deal found 10/12C$ 419
Thu 22/16:00 a.m.YUL - MDW
1 stop7h 46mDelta
Wed 28/11:26 p.m.MDW - YUL
1 stop8h 46mDelta
Deal found 10/12C$ 419
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 12 December 2025.
Wed 18/26:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Sun 22/27:15 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 10/12C$ 259
Thu 29/11:10 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Sun 1/27:15 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 10/12C$ 262
Fri 20/26:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Mon 23/210:35 a.m.ORD - YUL
Nonstop2h 25mAir Canada
Deal found 9/12C$ 297
Fri 20/23:55 p.m.YUL - ORD
Nonstop3h 00mAmerican Airlines
Tue 24/211:51 a.m.ORD - YUL
Nonstop2h 19mAmerican Airlines
Deal found 9/12C$ 303
Tue 24/26:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Thu 26/212:50 p.m.ORD - YUL
Nonstop2h 11mAir Canada
Deal found 9/12C$ 310
Wed 28/16:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Tue 3/27:15 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 11/12C$ 336
Thu 29/13:50 p.m.YUL - ORD
Nonstop3h 00mAmerican Airlines
Sun 1/211:50 a.m.ORD - YUL
Nonstop2h 18mAmerican Airlines
Deal found 9/12C$ 367
Thu 12/23:55 p.m.YUL - ORD
Nonstop3h 00mAmerican Airlines
Mon 16/211:46 a.m.ORD - YUL
Nonstop2h 19mAmerican Airlines
Deal found 9/12C$ 368
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 12 December 2025 and is based on user searches.
Sat 27/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 23/211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 11/12C$ 328
Tue 30/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 5/14:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 10/12C$ 432
Mon 5/16:45 a.m.YUL - MDW
1 stop4h 25mPorter Airlines
Thu 8/111:05 a.m.MDW - YUL
1 stop5h 40mPorter Airlines
Deal found 9/12C$ 400
Wed 7/110:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Wed 14/18:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Deal found 8/12C$ 370
Thu 22/16:00 a.m.YUL - MDW
1 stop7h 46mDelta
Wed 28/11:26 p.m.MDW - YUL
1 stop8h 46mDelta
Deal found 10/12C$ 419
Fri 23/112:50 p.m.YUL - MDW
1 stop10h 32mDelta
Mon 26/16:00 a.m.MDW - YUL
1 stop9h 55mDelta
Deal found 11/12C$ 421
Mon 26/16:00 a.m.YUL - MDW
1 stop7h 46mDelta
Mon 2/21:26 p.m.MDW - YUL
1 stop8h 46mDelta
Deal found 11/12C$ 415
Wed 28/16:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Tue 3/27:15 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 11/12C$ 336
Thu 29/11:10 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Sun 1/27:15 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 10/12C$ 262
Thu 29/17:30 a.m.YUL - ORD
1 stop7h 29mAmerican Airlines
Sun 1/26:05 a.m.ORD - YUL
1 stop6h 40mAmerican Airlines
Deal found 10/12C$ 348
Thu 29/11:02 p.m.YUL - ORD
1 stop4h 36mDelta
Sun 1/26:50 a.m.ORD - YUL
1 stop4h 14mDelta
Deal found 9/12C$ 359
Thu 29/16:00 a.m.YUL - MDW
1 stop7h 46mDelta
Sun 1/26:00 a.m.MDW - YUL
1 stop9h 55mDelta
Deal found 10/12C$ 359
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 12 December 2025.
Wed 7/16:45 a.m.YUL - ORD
2 stops29h 37mMultiple Airlines
Deal found 10/12C$ 226
Thu 8/16:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Deal found 11/12C$ 228
Mon 9/25:25 p.m.YUL - ORD
2 stops18h 57mMultiple Airlines
Deal found 10/12C$ 232
Tue 31/36:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Deal found 11/12C$ 234
Tue 10/38:00 a.m.YUL - ORD
1 stop10h 24mMultiple Airlines
Deal found 11/12C$ 236
Mon 5/16:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Deal found 10/12C$ 236
Mon 23/26:25 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Deal found 9/12C$ 239
Wed 11/38:00 a.m.YUL - ORD
1 stop10h 24mMultiple Airlines
Deal found 11/12C$ 241
Fri 9/13:50 p.m.YUL - ORD
Nonstop3h 00mAmerican Airlines
Deal found 10/12C$ 243
Fri 9/112:10 p.m.YUL - ORD
1 stop6h 38mAir Canada
Deal found 11/12C$ 244
Sun 11/18:00 a.m.YUL - ORD
1 stop28h 22mMultiple Airlines
Deal found 11/12C$ 245
Wed 24/125:25 p.m.YUL - ORD
1 stop17h 19mUnited Airlines
Deal found 9/12C$ 248
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 12 December 2025.
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 629,999 searches. Data last updated 12 December 2025.
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
Pierre Elliott Trudeau Intl
Fly to
Chicago
Route
Depart
Return
Price
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 18/2
9:25 a.m.-11:06 a.m.
Nonstop2h 41m
Chicago O'Hare Intl
Sun 22/2
12:50 p.m.-4:01 p.m.
Nonstop2h 11m
C$ 259
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Sat 14/2
8:55 a.m.-11:50 a.m.
1 stop3h 55m
Chicago Midway
Tue 17/2
11:00 a.m.-6:45 p.m.
1 stop6h 45m
C$ 259
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 5/2
3:50 p.m.-5:50 p.m.
Nonstop3h 00m
Chicago O'Hare Intl
Sun 8/2
11:50 a.m.-3:08 p.m.
Nonstop2h 18m
C$ 268
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 12/2
6:00 a.m.-9:41 a.m.
1 stop4h 41m
Chicago O'Hare Intl
Sun 15/2
6:30 a.m.-12:02 p.m.
1 stop4h 32m
C$ 297
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sun 15/2
6:00 a.m.-9:41 a.m.
1 stop4h 41m
Chicago O'Hare Intl
Thu 19/2
7:10 a.m.-1:36 p.m.
1 stop5h 26m
C$ 297
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 20/2
6:00 p.m.-11:57 p.m.
1 stop6h 57m
Chicago O'Hare Intl
Mon 23/2
12:05 p.m.-6:35 p.m.
1 stop5h 30m
C$ 297
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 14/2
6:00 a.m.-9:41 a.m.
1 stop4h 41m
Chicago O'Hare Intl
Tue 17/2
6:15 a.m.-1:40 p.m.
1 stop6h 25m
C$ 297
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Tue 17/2
7:00 a.m.-11:59 a.m.
1 stop5h 59m
Chicago Midway
Wed 18/2
1:28 p.m.-11:10 p.m.
1 stop8h 42m
C$ 297
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Tue 21/4
6:45 a.m.-10:05 a.m.
1 stop4h 20m
Chicago Midway
Sun 26/4
11:00 a.m.-6:45 p.m.
1 stop6h 45m
C$ 361
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Sat 14/3
8:55 a.m.-11:50 a.m.
1 stop3h 55m
Chicago Midway
Tue 17/3
11:00 a.m.-6:45 p.m.
1 stop6h 45m
C$ 370
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/12
Showing 1-10 of 39 results
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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.
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
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Chicago. Price data was last updated on 5 December 2025.
Booking 78 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.
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Currently, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of C$ 181). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in December is currently the most expensive (average of C$ 372). 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 12 December 2025.
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 53% versus a flight at noon.
What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Chicago. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Chicago flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to Chicago
Explore weekly flight availability from Pierre Elliott Trudeau Intl to Chicago. 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 12 December 2025.
The most flights from YUL to CHI are scheduled on a Tuesday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).
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 94% 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$ 416.
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 Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 4h 08m.
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 23m.
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 12 December 2025.
See what other customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines 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.
It's good. Planes are new and fresh. WiFi is best and stands out
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 2h 41m. Fly via Air Canada, Porter Airlines, or American Airlines 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$ 177, American Airlines will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Porter Airlines and Air Canada - these airlines can fly you to your destination from C$ 196 and C$ 255, respectively. These flights start at 58% lower than the current average price 3 months from now.
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: Qatar Airways (94%), ANA (90%), Emirates (89%).
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$ 232. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl) can be booked for C$ 255 on average, our data indicates C$ 1,447 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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of C$ 181). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in December is currently the most expensive (average of C$ 372). 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.
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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 12 December 2025.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
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 12 December 2025.
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 629,999 searches. Data last updated 12 December 2025.
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.
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