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Pierre Elliott Trudeau Intl

$108+ Cheap flights from Illinois to Pierre Elliott Trudeau Intl (YUL)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Illinois to Pierre Elliott Trudeau Intl

Keep the following information in mind while searching for Illinois to Pierre Elliott Trudeau Intl flight deals. Data was last updated September 15, 2025.

Round-trip from

$262
(Trip.com)

One-way from

$108
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$309

Good round-trip deal

$459 or less

Good one-way deal

$174 or less
From Illinois to Montreal Pierre Elliott Trudeau Intl
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One-way flight from Illinois to Montreal Pierre Elliott Trudeau Intl
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Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Montreal Pierre Elliott Trudeau Intl.
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Price to beat on a one-way flight from Illinois to Montreal Pierre Elliott Trudeau Intl.
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Find flight deals from Illinois to Pierre Elliott Trudeau Intl

Cheapest flights from Illinois to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Illinois to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/304:15 pmMDW - YUL
1 stop5h 30mPorter Airlines
Thu 11/610:15 amYUL - MDW
1 stop6h 05mPorter Airlines
Deal found 9/15$261
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/239:35 amMDW - YUL
1 stop5h 25mPorter Airlines
Sun 10/2611:25 amYUL - MDW
1 stop4h 55mPorter Airlines
Deal found 9/15$262
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/3011:00 amMDW - YUL
1 stop4h 30mPorter Airlines
Sun 11/210:15 amYUL - MDW
1 stop6h 05mPorter Airlines
Deal found 9/13$263
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/105:20 pmMDW - YUL
1 stop3h 55mPorter Airlines
Wed 10/151:10 pmYUL - MDW
1 stop4h 14mPorter Airlines
Deal found 9/15$264
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/3011:00 amMDW - YUL
1 stop5h 45mPorter Airlines
Mon 11/311:25 amYUL - MDW
1 stop4h 55mPorter Airlines
Deal found 9/13$265
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:00 amMDW - YUL
1 stop4h 30mPorter Airlines
Sun 11/166:45 amYUL - MDW
1 stop4h 20mPorter Airlines
Deal found 9/13$270
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/214:15 pmMDW - YUL
1 stop5h 30mPorter Airlines
Sun 11/306:45 amYUL - MDW
1 stop4h 20mPorter Airlines
Deal found 9/15$271
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:20 pmMDW - YUL
1 stop3h 55mPorter Airlines
Tue 10/141:10 pmYUL - MDW
1 stop4h 14mPorter Airlines
Deal found 9/13$273
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:50 pmORD - YUL
Nonstop2h 07mAir Canada
Sat 11/16:15 pmYUL - ORD
Nonstop2h 45mAir Canada
Deal found 9/13$275
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:40 amORD - YUL
Nonstop2h 14mAir Canada
Sun 10/266:15 pmYUL - ORD
Nonstop2h 45mAir Canada
Deal found 9/14$276
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:20 pmMDW - YUL
1 stop3h 55mPorter Airlines
Tue 10/1410:45 amYUL - MDW
1 stop6h 39mPorter Airlines
Deal found 9/12$279
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:50 pmORD - YUL
Nonstop2h 07mAir Canada
Thu 11/61:10 pmYUL - ORD
Nonstop2h 45mAir Canada
Deal found 9/15$279

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Pierre Elliott Trudeau Intl 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 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Illinois

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 10/30

11:00 am-4:30 pm

1 stop4h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 11/3

6:45 am-10:05 am

1 stop4h 20m

$265

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 10/23

5:20 pm-10:15 pm

1 stop3h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 10/26

11:25 am-3:20 pm

1 stop4h 55m

$268

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Mon 11/10

11:00 am-4:30 pm

1 stop4h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 11/13

6:45 am-10:05 am

1 stop4h 20m

$273

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Mon 10/20

5:20 pm-10:15 pm

1 stop3h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 10/23

1:10 pm-4:24 pm

1 stop4h 14m

$273

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 10/23

9:35 am-4:00 pm

1 stop5h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 10/30

6:45 am-8:32 am

2 stops26h 47m

$296

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 10/9

5:20 pm-10:15 pm

1 stop3h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 10/12

8:55 am-4:24 pm

1 stop8h 29m

$298

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 11/20

4:15 pm-10:45 pm

1 stop5h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 11/23

6:45 am-10:05 am

1 stop4h 20m

$299

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 12/12

4:15 pm-10:45 pm

1 stop5h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 12/23

11:25 am-3:20 pm

1 stop4h 55m

$299

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Tue 11/25

11:00 am-4:30 pm

1 stop4h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 11/30

6:45 am-10:05 am

1 stop4h 20m

$299

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 10/3

5:20 pm-10:15 pm

1 stop3h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 10/7

1:10 pm-4:24 pm

1 stop4h 14m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 58 results
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Best time to book a flight from Illinois to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Illinois 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 Illinois to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 IL to YUL?

Find hourly flight availability from Illinois to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport as you normally would.

Weekly flight availability from Illinois to Montreal Pierre Elliott Trudeau Intl Airport

Explore weekly flight availability from Illinois to Pierre Elliott Trudeau Intl. 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 September 15, 2025.

The most flights from USIL to YUL are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Pierre Elliott Trudeau Intl. 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 Illinois to Montreal Pierre Elliott Trudeau Intl Airport?

    There are many flights that can get you from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in 2h 22m. Fly via Porter Airlines, United Airlines, or American Airlines to get the fastest option. There are 745 mi between Illinois and Montreal Pierre Elliott Trudeau Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $119 on Porter Airlines. Other airlines that offer cheap prices include United Airlines from $132 and American Airlines from $175 one-way.

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

    When deciding which route to take from Illinois to Montreal Pierre Elliott Trudeau Intl Airport consider Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl, Chicago Midway - Montreal Pierre Elliott Trudeau Intl or Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl as they are the most popular.

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

    The top 3 most reliable airlines when flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport are Republic Airways (82%), Alaska Airlines (82%) and Copa Airlines (77%).

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

    Looking at all options, your cheapest flight can be booked for $74. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for $288 on average, our data indicates $773 when flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Pierre Elliott Trudeau Intl.

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

    Yes. Cheapflights offers flight deals from Illinois to Pierre Elliott Trudeau Intl 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 Illinois to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Brossard
Sherbrooke
Dorval

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Alternative routes for Illinois to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Pierre Elliott Trudeau Intl

Discover the top 4 airlines that operate flights from Illinois to Pierre Elliott Trudeau Intl. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$163Average$398FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$192Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$215Average$382FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$245Average$438FlexibilityNo cancel feeOn-time52%

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