$102+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Illinois
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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Pierre Elliott Trudeau Intl to Illinois 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.Cheap 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 January 29, 2026.
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 January 29, 2026.
This Air Canada deal was found by Cheapflights users on 1/27. 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.
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 1/28. 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.
This United Airlines deal was found by Cheapflights users on 1/27. 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.
This Trip.com deal was found by Cheapflights users on 1/27. 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.
This Trip.com deal was found by Cheapflights users on 1/27. 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.
This Trip.com deal was found by Cheapflights users on 1/28. 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.
This FlightHub deal was found by Cheapflights users on 1/28. 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.
This FlightHub deal was found by Cheapflights users on 1/27. 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.
This FlightHub deal was found by Cheapflights users on 1/27. 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.
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Find 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 January 29, 2026.
Round-trip from | $182 (Air Canada) |
|---|---|
One-way from | $102 (Trip.com) |
Popular in | January |
Cheapest in | September |
Average price | $431 |
Good round-trip deal | $318 or less |
Good one-way deal | $222 or less |
Cheapflights Fare Finder
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
Fly to
Route
Depart
Return
Price
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 3/12
9:25 am-11:18 am
Nonstop2h 53m
Chicago O'Hare Intl
Mon 3/16
12:50 pm-3:57 pm
Nonstop2h 07m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 4/18
9:15 am-10:53 am
Nonstop2h 38m
Chicago O'Hare Intl
Mon 4/20
12:50 pm-4:05 pm
Nonstop2h 15m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 2/19
9:15 am-2:20 pm
1 stop6h 05m
Chicago O'Hare Intl
Sat 2/21
6:00 pm-9:17 pm
Nonstop2h 17m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Thu 3/12
6:50 am-10:05 am
1 stop4h 15m
Chicago Midway
Mon 3/16
11:00 am-5:45 pm
1 stop5h 45m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Mon 5/4
10:35 am-4:50 pm
1 stop7h 15m
Chicago Midway
Thu 5/7
10:25 am-5:15 pm
1 stop5h 50m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 2/21
2:13 pm-11:43 pm
1 stop10h 30m
Chicago O'Hare Intl
Sun 2/22
10:35 am-2:00 pm
Nonstop2h 25m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 2/25
7:00 am-4:51 pm
1 stop10h 51m
Chicago O'Hare Intl
Wed 3/11
7:10 am-5:31 pm
1 stop9h 21m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Fri 2/20
6:00 am-12:46 pm
1 stop7h 46m
Chicago Midway
Sat 2/21
1:28 pm-11:10 pm
1 stop8h 42m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Fri 4/10
6:45 am-10:05 am
1 stop4h 20m
Chicago Midway
Mon 4/13
11:00 am-4:30 pm
1 stop4h 30m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Mon 5/4
12:50 pm-9:25 pm
1 stop9h 35m
Chicago O'Hare Intl
Sat 5/9
1:15 pm-11:58 pm
1 stop9h 43m
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.
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 $131). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois in March is currently the most expensive (average of $248). 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 January 29, 2026.
A simple way to save on the total cost of your ticket is to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois at noon. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight in the evening.
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 January 24, 2026.
Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon 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 January 29, 2026.
The most flights from YUL to USIL are scheduled on a Wednesday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
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 January 29, 2026.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois, such as Porter Airlines, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Boarding
Comfort
Crew
Entertainment
Reviews
Mohameed,Nov 2025
LAS - YYZ
Overall
Food
Boarding
Comfort
Crew
Entertainment
Reviews
Mohameed,Nov 2025
LAS - YYZ
Overall
Food
Boarding
Comfort
Crew
Entertainment
Reviews
Mohameed,Nov 2025
LAS - YYZ
Overall
Food
Boarding
Comfort
Crew
Entertainment
Reviews
Mohameed,Nov 2025
LAS - YYZ
Overall
Food
Boarding
Comfort
Crew
Entertainment
Reviews
Mohameed,Nov 2025
LAS - YYZ
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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 2,558,603 searches. Data last updated January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$156 | Average$326 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$189 | Average$399 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$300 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$267 | Average$380 | FlexibilityNo cancel fee | On-time69% |