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Cheap flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport from C$ 76

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
16 Jan — 23 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

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 17 December 2025.

Wed 31/125:52 p.m.ORD - YUL
Nonstop2h 25mUnited Airlines
Tue 6/14:45 p.m.YUL - ORD
Nonstop3h 06mUnited Airlines
Deal found 16/12C$ 383
Wed 31/128:30 p.m.ORD - YUL
1 stop4h 23mAir Canada
Tue 6/19:10 a.m.YUL - ORD
1 stop4h 51mAir Canada
Deal found 16/12C$ 416
Mon 29/125:52 p.m.ORD - YUL
Nonstop2h 25mAir Canada
Mon 2/24:45 p.m.YUL - ORD
Nonstop3h 06mAir Canada
Deal found 15/12C$ 420
Mon 29/125:30 a.m.ORD - YUL
1 stop10h 45mDelta
Mon 2/26:02 p.m.YUL - ORD
1 stop6h 54mDelta
Deal found 15/12C$ 453
Mon 29/122:00 p.m.ORD - YUL
1 stop4h 22mAir Canada
Mon 19/19:10 a.m.YUL - ORD
1 stop4h 51mAir Canada
Deal found 15/12C$ 517
Tue 30/128:30 p.m.ORD - YUL
1 stop11h 52mAir Canada
Mon 5/110:10 a.m.YUL - ORD
1 stop6h 00mAir Canada
Deal found 15/12C$ 567
Tue 30/126:08 p.m.MDW - YUL
1 stop4h 11mDelta
Mon 5/17:00 a.m.YUL - MDW
1 stop10h 29mDelta
Deal found 16/12C$ 581
Tue 30/1211:00 a.m.MDW - YUL
1 stop6h 45mMultiple Airlines
Sun 4/16:15 p.m.YUL - MDW
1 stop17h 12mMultiple Airlines
Deal found 16/12C$ 615
Thu 25/126:12 a.m.MDW - YUL
2 stops17h 18mMultiple Airlines
Tue 30/126:45 a.m.YUL - MDW
1 stop4h 20mMultiple Airlines
Deal found 15/12C$ 643
Mon 29/124:15 p.m.MDW - YUL
1 stop5h 30mMultiple Airlines
Wed 7/112:54 p.m.YUL - MDW
1 stop5h 40mMultiple Airlines
Deal found 16/12C$ 656
Wed 31/1211:00 a.m.MDW - YUL
1 stop5h 15mPorter Airlines
Thu 1/111:25 a.m.YUL - MDW
1 stop4h 55mPorter Airlines
Deal found 17/12C$ 684
Tue 30/1210:48 a.m.STL - YUL
2 stops36h 42mMultiple Airlines
Wed 7/14:35 p.m.YUL - STL
1 stop30h 58mMultiple Airlines
Deal found 16/12C$ 707

Find 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 17 December 2025.

Round-trip from

C$ 272

One-way from

C$ 76

Popular in

December

Cheapest in

September

Average price

C$ 567

Good round-trip deal

C$ 384 or less

Good one-way deal

C$ 107 or less
American Airlines
  • American Airlines
  • 2/2-4/2
  • 1 total stop
  • 7h 33m total
  • Illinois to Montreal
Search Deals
Porter Airlines
  • Porter Airlines
  • 10/2
  • 1 total stop
  • 5h 40m total
  • Illinois to Montreal
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 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 Illinois to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from Illinois to Montreal Pierre Elliott Trudeau Intl.
Search Deals

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 629,999 searches. Data last updated 17 December 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

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

1:02 p.m.-7:48 p.m.

1 stop5h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

2:13 p.m.-6:41 p.m.

1 stop5h 28m

C$ 285

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/2

7:10 a.m.-1:28 p.m.

1 stop5h 18m

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

9:15 a.m.-2:20 p.m.

1 stop6h 05m

C$ 285

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 7/2

8:52 a.m.-3:16 p.m.

1 stop5h 24m

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

6:00 a.m.-8:05 a.m.

Nonstop3h 05m

C$ 290

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

6:48 p.m.-1:45 p.m.

1 stop17h 57m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

7:12 a.m.-5:56 p.m.

1 stop11h 44m

C$ 293

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Sat 14/2

1:28 p.m.-11:10 p.m.

1 stop8h 42m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

6:00 a.m.-12:46 p.m.

1 stop7h 46m

C$ 326

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Sat 7/2

1:26 p.m.-11:12 p.m.

1 stop8h 46m

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

6:00 a.m.-12:46 p.m.

1 stop7h 46m

C$ 326

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 12/2

6:00 a.m.-4:53 p.m.

1 stop9h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:00 a.m.-12:46 p.m.

1 stop7h 46m

C$ 326

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 12/2

6:45 a.m.-4:53 p.m.

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:00 a.m.-1:22 p.m.

1 stop8h 22m

C$ 326

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

3:21 p.m.-11:59 p.m.

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

7:00 a.m.-4:54 p.m.

1 stop10h 54m

C$ 326

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 21/2

3:21 p.m.-11:59 p.m.

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

2:29 p.m.-10:05 p.m.

1 stop8h 36m

C$ 326

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 49 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, April is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 142). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 389). 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 17 December 2025.

When flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 17 December 2025.

The most flights from USIL to YUL are scheduled on a Tuesday (22 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 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 5h 46m. Fly via United Airlines, American Airlines, or Delta to get the fastest option. There are 1199 km between Illinois and Montreal Pierre Elliott Trudeau Intl Airport. Both multi-stop and direct 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?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 101. United Airlines flights start at C$ 102 while deals on Porter Airlines start at C$ 178 one-way.

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

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Montreal Pierre Elliott Trudeau Intl Airport on time: Republic Airways (80%), Porter Airlines (79%), Japan Airlines (76%).

  • 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 C$ 107. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for C$ 250 on average, our data indicates C$ 555 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, April is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 142). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 389). 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

Travelling 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
Dorval
Sherbrooke
Cornwall
Trois-Rivières
Brossard
Montebello
Boucherville
Longueuil
Drummondville
Magog
Saint-Jean-sur-Richelieu
Bromont
North Hatley
Louiseville

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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 airline flying from Illinois to Pierre Elliott Trudeau Intl

Discover the top airline 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 629,999 searches. Data last updated 17 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 339AverageC$ 663FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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