Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois from $93
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois departing on 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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American Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois
Our best American Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight tickets
American Airlines![American Airlines]()
Aug 30![American Airlines]()
Sep 2
YUL7:50 amMontreal Pierre Elliott Trudeau Intl
15h 59m
1 stop
ORD10:49 pmChicago O'Hare Intl
ORD8:10 amChicago O'Hare Intl
2h 26m
YUL11:36 amMontreal Pierre Elliott Trudeau Intl
American Airlines![American Airlines]()
Jul 8![American Airlines]()
Jul 15
YUL10:30 amMontreal Pierre Elliott Trudeau Intl
6h 16m
1 stop
ORD3:46 pmChicago O'Hare Intl
ORD5:15 amChicago O'Hare Intl
7h 29m
1 stop
YUL1:44 pmMontreal Pierre Elliott Trudeau Intl
United Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois
Our best United Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight tickets
United Airlines![United Airlines]()
Sep 19![United Airlines]()
Sep 22
YUL3:41 pmMontreal Pierre Elliott Trudeau Intl
8h 44m
1 stop
ORD11:25 pmChicago O'Hare Intl
ORD7:10 amChicago O'Hare Intl
4h 59m
1 stop
YUL1:09 pmMontreal Pierre Elliott Trudeau Intl
United Airlines![United Airlines]()
Sep 19![United Airlines]()
Sep 22
YUL3:41 pmMontreal Pierre Elliott Trudeau Intl
8h 44m
1 stop
ORD11:25 pmChicago O'Hare Intl
ORD6:00 pmChicago O'Hare Intl
2h 29m
YUL9:29 pmMontreal Pierre Elliott Trudeau Intl
See travel insights to Illinois from
How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
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What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from Montreal Pierre Elliott Trudeau Intl Airport is in September. Flight prices, which tend to average around $283, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $303.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Montreal Pierre Elliott Trudeau Intl Airport to Illinois is on a Thursday when prices can be found for as low as $439. Flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois on a Monday will generally be more expensive and average around $594. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois during this time can be as low as $486. Flights in the morning are often more expensive with an average ticket price of $504.
What is the cheapest Montreal Pierre Elliott Trudeau Intl to Illinois flight route?
Fly from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl for the best Montreal Pierre Elliott Trudeau Intl - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Montreal Pierre Elliott Trudeau Intl Airport for as low as $210 on momondo.
What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to Illinois flights?
There are 4 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Montreal Pierre Elliott Trudeau Intl to Illinois?
Air Canada, Porter Airlines, and American Airlines are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to Illinois
What airlines fly to Illinois?
Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to Illinois from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Illinois on average per day?
27 flights are operational daily from Montreal Pierre Elliott Trudeau Intl Airport to Illinois as of July 2025. The most popular departure time for this route is 6:00AM, with 47% of flights per day taking off at noon.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Illinois on average per week?
The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and Illinois is 195 per week as of July 2025. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.
Cheap Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois
When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
As of July 2025, there are 6 operators available to choose from for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois.
How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal Pierre Elliott Trudeau Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Montreal Pierre Elliott Trudeau Intl Airport to Illinois is Embraer 175 (Enhanced Winglets), representing 27.24% of all bookings. The subsequent popular models are Embraer 175 at 17.25%, Boeing 737 MAX 8 at 12.61%, and Airbus A321-100/200 at 8.08%.
Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois
Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $112 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $217 | Free Cancellation | Rating 8.0 298 reviews | |||
| PriceFrom $229 | Free Cancellation | Rating 7.1 9,678 reviews | |||
| PriceFrom $275 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $334 | Free Cancellation | Rating 7.2 2,917 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Montreal to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Illinois for you.
Can I find flights from Montreal to Illinois with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Illinois from Montreal with this policy.
How can momondo help me find flights from Montreal to Illinois?
momondo provides multiple filters to help you find the best flight to Illinois from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Montreal to Illinois right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Montreal to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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