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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois from C$ 227
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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
27 Nov — 4 Dec1
Cheap flight deals from Pierre Elliott Trudeau Intl to Illinois
Keep the following information in mind while searching for Pierre Elliott Trudeau Intl to Illinois flight deals. Data was last updated 28 October 2025.
Find flight deals from Pierre Elliott Trudeau Intl to Illinois
Cheapest flights from Pierre Elliott Trudeau Intl to IllinoisExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
Thu 11/1211:25 a.m.YUL - MDW
1 stop4h 55mPorter Airlines
Mon 15/1211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 27/10C$ 368
Thu 20/116:15 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Mon 24/117:05 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 28/10C$ 369
Fri 12/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Fri 19/1211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 28/10C$ 369
Tue 9/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Fri 12/1211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 26/10C$ 371
Mon 17/112:00 p.m.YUL - ORD
1 stop6h 30mAir Canada
Sun 23/118:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Deal found 27/10C$ 375
Thu 18/1210:15 a.m.YUL - MDW
1 stop6h 05mPorter Airlines
Mon 12/111:00 a.m.MDW - YUL
1 stop5h 45mPorter Airlines
Deal found 28/10C$ 375
Sat 22/118:55 a.m.YUL - MDW
1 stop3h 55mPorter Airlines
Sat 29/1112:45 p.m.MDW - YUL
1 stop5h 05mPorter Airlines
Deal found 28/10C$ 378
Thu 11/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Thu 18/1211:00 a.m.MDW - YUL
1 stop6h 45mPorter Airlines
Deal found 27/10C$ 380
Sat 22/116:15 p.m.YUL - ORD
Nonstop2h 45mAir Canada
Mon 24/117:05 a.m.ORD - YUL
Nonstop2h 05mAir Canada
Deal found 27/10C$ 382
Tue 25/116:00 a.m.YUL - ORD
Nonstop3h 00mUnited Airlines
Tue 2/1210:38 a.m.ORD - YUL
Nonstop2h 22mUnited Airlines
Deal found 27/10C$ 383
Thu 4/1210:15 a.m.YUL - MDW
1 stop6h 05mPorter Airlines
Sun 7/1211:00 a.m.MDW - YUL
1 stop4h 30mPorter Airlines
Deal found 26/10C$ 385
Mon 24/116:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sat 29/1112:45 p.m.MDW - YUL
1 stop5h 05mPorter Airlines
Deal found 25/10C$ 386
Cheapflights Fare Finder
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Illinois 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 28 October 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois that are best for you.
Fly from
Pierre Elliott Trudeau Intl
Fly to
Illinois
Route
Depart
Return
Price
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 4/4
9:25 a.m.-10:57 a.m.
Nonstop2h 32m
Chicago O'Hare Intl
Wed 8/4
9:00 a.m.-4:21 p.m.
1 stop6h 21m
C$ 315
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Mon 2/3
3:11 p.m.-7:48 p.m.
1 stop5h 37m
Chicago O'Hare Intl
Mon 9/3
7:00 a.m.-5:55 p.m.
1 stop9h 55m
C$ 322
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 27/2
8:00 p.m.-7:50 a.m.
1 stop12h 50m
Chicago O'Hare Intl
Sun 8/3
9:01 p.m.-7:45 a.m.
1 stop9h 44m
C$ 324
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 4/4
6:00 a.m.-9:35 a.m.
1 stop4h 35m
Chicago O'Hare Intl
Wed 8/4
7:10 a.m.-5:04 p.m.
1 stop8h 54m
C$ 358
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 20/3
7:00 a.m.-2:33 p.m.
1 stop8h 33m
Chicago O'Hare Intl
Mon 23/3
8:15 p.m.-1:53 a.m.
1 stop4h 38m
C$ 369
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Thu 8/1
6:45 a.m.-10:05 a.m.
1 stop4h 20m
Chicago Midway
Fri 16/1
11:00 a.m.-7:15 p.m.
1 stop7h 15m
C$ 375
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Tue 30/12
11:25 a.m.-3:20 p.m.
1 stop4h 55m
Chicago Midway
Sat 3/1
4:15 p.m.-10:45 p.m.
1 stop5h 30m
C$ 375
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Sat 22/11
8:55 a.m.-11:50 a.m.
1 stop3h 55m
Chicago Midway
Sat 29/11
12:45 p.m.-6:50 p.m.
1 stop5h 05m
C$ 378
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 25/11
6:00 a.m.-8:00 a.m.
Nonstop3h 00m
Chicago O'Hare Intl
Tue 2/12
10:38 a.m.-2:00 p.m.
Nonstop2h 22m
C$ 383
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Mon 2/3
12:45 p.m.-9:46 p.m.
1 stop10h 01m
Chicago Midway
Mon 9/3
2:00 p.m.-11:39 p.m.
1 stop8h 39m
C$ 385
Showing 1-10 of 49 results
Best time to book a flight from Pierre Elliott Trudeau Intl to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
Currently, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois (average of C$ 183). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois in March is currently the most expensive (average of C$ 358). 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 IL?
Find hourly flight availability from Pierre Elliott Trudeau Intl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 October 2025.
A simple way to save on the total cost of your ticket is to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois in the evening. If you’re flexible enough to do this you can expect to save up to 57% on your trip compared to booking a flight at noon.
What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Illinois. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Illinois 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 Illinois
Explore weekly flight availability from Pierre Elliott Trudeau Intl to Illinois. 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 28 October 2025.
The most flights from YUL to USIL are scheduled on a Monday (26 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 28 October 2025.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Boarding
8.2
Comfort
8.0
Crew
8.6
Entertainment
7.0
Food
7.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Related info for your journey
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Alternative routes for Pierre Elliott Trudeau Intl to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Pierre Elliott Trudeau Intl to Illinois
Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl to Illinois. 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 28 October 2025.
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Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Illinois?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Pierre Elliott Trudeau Intl.
Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Illinois with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Pierre Elliott Trudeau Intl to Illinois, users can toggle the no change fees filter when performing a flight search.
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Not ready to book yet? You can track prices for flights from Pierre Elliott Trudeau Intl to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.