Cheap flights from Montreal to Illinois from C$ 202
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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Montreal to Illinois
Keep the following information in mind while searching for Montreal to Illinois flight deals. Data was last updated 12 June 2025.
Find flight deals from Montreal to Illinois
Cheapest flights from Montreal to IllinoisExplore the most affordable flight options available from Montreal to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from Montreal to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Montreal 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 12 June 2025.
Use the filters below to find and compare flights from Montreal to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Fri 11/7
1:10 p.m.-4:24 p.m.
1 stop4h 14m
Chicago Midway
Sun 13/7
9:40 a.m.-4:00 p.m.
1 stop5h 20m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 27/8
1:20 p.m.-2:55 p.m.
Nonstop2h 35m
Chicago O'Hare Intl
Wed 3/9
8:40 a.m.-11:57 a.m.
Nonstop2h 17m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 30/8
7:50 a.m.-10:49 p.m.
1 stop15h 59m
Chicago O'Hare Intl
Tue 2/9
9:11 p.m.-12:28 p.m.
1 stop14h 17m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 3/10
7:00 a.m.-4:38 p.m.
1 stop10h 38m
Chicago O'Hare Intl
Wed 8/10
10:35 a.m.-4:00 p.m.
1 stop4h 25m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Fri 3/10
7:00 a.m.-4:23 p.m.
1 stop10h 23m
Chicago Midway
Wed 8/10
9:30 a.m.-4:00 p.m.
1 stop5h 30m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 17/7
6:15 a.m.-7:59 a.m.
Nonstop2h 44m
Chicago O'Hare Intl
Mon 21/7
8:40 a.m.-11:58 a.m.
Nonstop2h 18m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 17/7
6:15 a.m.-7:59 a.m.
Nonstop2h 44m
Chicago O'Hare Intl
Tue 22/7
2:07 p.m.-5:26 p.m.
Nonstop2h 19m
MontrealChicago
YUL - MDW
YULMDW
Montreal Pierre Elliott Trudeau Intl
Sat 11/10
7:00 a.m.-9:44 p.m.
1 stop15h 44m
Chicago Midway
Wed 15/10
9:15 a.m.-6:45 p.m.
1 stop8h 30m
MontrealSt. Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Thu 25/9
12:30 p.m.-8:25 p.m.
1 stop8h 55m
Lambert-St Louis
Mon 29/9
5:55 a.m.-4:30 p.m.
1 stop9h 35m
MontrealChicago
YUL - ORD
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 24/7
6:15 a.m.-7:59 a.m.
Nonstop2h 44m
Chicago O'Hare Intl
Mon 28/7
7:15 a.m.-10:40 a.m.
Nonstop2h 25m
Best time to book a flight from Montreal to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Montreal with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Montreal to Illinois
What is the cheapest month to book a flight from Montreal to Illinois?
Currently, January is the cheapest month in which you can book a flight from Montreal to Illinois (average of C$ 261). Flying from Montreal to Illinois in March is currently the most expensive (average of C$ 352). 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 YMQ to IL?
Find hourly flight availability from Montreal 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 12 June 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal to Illinois as you normally would.
Weekly flight availability from Montreal to Illinois
Explore weekly flight availability from Montreal 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 12 June 2025.
The most flights from YMQ to USIL 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 (23 on average).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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 12 June 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta and United Airlines from Montreal to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Related info for your journey
Find useful and relevant information for your journey from Montreal to Illinois. 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 Montreal to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Montreal to Illinois
Discover the top 5 airlines that operate flights from Montreal 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 12 June 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Montreal to Illinois?
When you search for this flight from Montreal to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Montreal 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 Montreal.
Can Cheapflights find flights from Montreal to Illinois with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Montreal to Illinois, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Montreal to Illinois become cheaper?
Of course! You can now track prices for flights from Montreal to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.