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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois from C$ 224

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Illinois
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 15 December 2025.

Sat 27/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Mon 23/211:00 a.m.MDW - YUL
1 stop5h 45mPorter Airlines
Deal found 13/12C$ 270
Mon 29/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sun 4/111:05 a.m.MDW - YUL
1 stop5h 40mPorter Airlines
Deal found 14/12C$ 420
Fri 26/1211:10 a.m.YUL - ORD
1 stop5h 00mAir Canada
Mon 29/122:00 p.m.ORD - YUL
1 stop4h 22mAir Canada
Deal found 12/12C$ 450
Sat 27/127:00 a.m.YUL - ORD
1 stop7h 01mAir Canada
Mon 23/26:00 p.m.ORD - YUL
Nonstop2h 17mAir Canada
Deal found 13/12C$ 456
Fri 26/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sun 28/124:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 14/12C$ 472
Mon 22/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Tue 30/124:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 14/12C$ 475
Wed 31/128:00 a.m.YUL - ORD
1 stop6h 01mAir Canada
Tue 6/18:00 a.m.ORD - YUL
1 stop4h 22mAir Canada
Deal found 11/12C$ 478
Thu 25/1210:15 a.m.YUL - MDW
1 stop6h 05mPorter Airlines
Sun 28/124:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 13/12C$ 486
Thu 25/1210:15 a.m.YUL - MDW
1 stop6h 05mPorter Airlines
Sat 3/111:05 a.m.MDW - YUL
1 stop4h 25mPorter Airlines
Deal found 13/12C$ 515
Mon 22/126:45 a.m.YUL - MDW
1 stop4h 20mPorter Airlines
Sun 28/124:15 p.m.MDW - YUL
1 stop5h 30mPorter Airlines
Deal found 14/12C$ 519
Thu 25/128:50 a.m.YUL - ORD
2 stops9h 58mAir Canada
Sun 28/128:30 p.m.ORD - YUL
2 stops9h 09mAir Canada
Deal found 12/12C$ 537
Fri 19/1211:10 a.m.YUL - ORD
1 stop5h 00mAir Canada
Tue 6/13:55 p.m.ORD - YUL
1 stop4h 57mAir Canada
Deal found 12/12C$ 544

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 15 December 2025.

Round-trip from

C$ 260

One-way from

C$ 224

Popular in

December

Cheapest in

September

Average price

C$ 485

Good round-trip deal

C$ 619 or less

Good one-way deal

C$ 344 or less
Air Canada
  • Air Canada
  • 12/2-16/2
  • Nonstop
  • 4h 50m total
  • Montreal to Illinois
Search Deals
Air Canada
  • Air Canada
  • 6/1
  • 1 total stop
  • 4h 51m total
  • Montreal to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Illinois.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Illinois.
Search Deals

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 15 December 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

Thu 5/2

1:10 p.m.-2:55 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Sat 7/2

12:50 p.m.-4:01 p.m.

Nonstop2h 11m

C$ 260

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

6:45 a.m.-10:05 a.m.

1 stop4h 20m

Chicago Midway

Sat 14/2

12:45 p.m.-6:45 p.m.

1 stop5h 00m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

1:10 p.m.-2:55 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Tue 17/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 260

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:45 a.m.-10:05 a.m.

1 stop4h 20m

Chicago Midway

Wed 18/2

11:00 a.m.-6:45 p.m.

1 stop6h 45m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 6/2

6:25 p.m.-8:10 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Sat 7/2

12:50 p.m.-4:01 p.m.

Nonstop2h 11m

C$ 260

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

10:15 a.m.-3:20 p.m.

1 stop6h 05m

Chicago Midway

Mon 16/2

4:15 p.m.-10:45 p.m.

1 stop5h 30m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 5/2

1:10 p.m.-2:55 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Sun 8/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 260

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

6:45 a.m.-10:05 a.m.

1 stop4h 20m

Chicago Midway

Fri 20/2

11:00 a.m.-5:45 p.m.

1 stop5h 45m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 6/2

6:25 p.m.-8:10 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Mon 9/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 260

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:45 a.m.-10:05 a.m.

1 stop4h 20m

Chicago Midway

Tue 17/2

11:00 a.m.-6:45 p.m.

1 stop6h 45m

C$ 260

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/12

Showing 1-10 of 50 results
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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$ 180). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois in December is currently the most expensive (average of C$ 373). 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 15 December 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 58% 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 15 December 2025.

The most flights from YUL to USIL are scheduled on a Tuesday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 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 15 December 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.
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
399 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,092 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
American Airlines
7.2
Good
11,051 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,201 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,523 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

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 Illinois. 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 Illinois?

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois can take about 2h 45m. Air Canada provides one of the quickest options available for as low as C$ 260. The distance between Montreal Pierre Elliott Trudeau Intl Airport and Illinois is about 1199 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois one-way?

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 140. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Illinois for a low price.

  • What are the most popular routes from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

    The most popular route from Montreal Pierre Elliott Trudeau Intl Airport to Illinois is Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl. You may also consider Montreal Pierre Elliott Trudeau Intl - Chicago Midway or Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

    Consider Qatar Airways (94%), ANA (90%) or Emirates (89%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois.

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

    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$ 257 on average, our data indicates C$ 1,460 when flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Illinois that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Illinois?

    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 Illinois.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Illinois?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Illinois 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 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$ 180). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois in December is currently the most expensive (average of C$ 373). 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.

See more FAQs

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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.
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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 15 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 196AverageC$ 532FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 202AverageC$ 370FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 257AverageC$ 505FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 264AverageC$ 494FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Illinois?

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 Illinois from Pierre Elliott Trudeau Intl today with Cheapflights!

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.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Illinois become cheaper?

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.

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