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Cheap flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport from C$ 215

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 13/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
17 Jul — 24 Jul1
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 June 2026.

Tue 15/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Thu 17/910:35 a.m.
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 17/6C$ 376
Sun 12/73:20 p.m.
MDW
-
YUL
1 stop3h 50m
Porter Airlines
Wed 15/710:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 16/6C$ 403
Wed 23/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Sun 27/910:35 a.m.
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 17/6C$ 407
Tue 14/710:25 a.m.
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Tue 21/710:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 16/6C$ 411
Tue 1/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Mon 7/96:30 a.m.
YUL
-
ORD
1 stop5h 30m
Porter Airlines
Deal found 16/6C$ 412
Wed 16/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Thu 17/96:30 a.m.
YUL
-
ORD
1 stop5h 30m
Porter Airlines
Deal found 16/6C$ 414
Tue 29/93:20 p.m.
ORD
-
YUL
1 stop5h 50m
Porter Airlines
Sat 3/1010:35 a.m.
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 17/6C$ 417
Mon 13/73:20 p.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Wed 22/710:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 13/6C$ 418
Thu 17/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Mon 21/910:35 a.m.
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 14/6C$ 418
Sat 18/710:25 a.m.
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Tue 21/710:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 14/6C$ 419
Thu 9/78:45 a.m.
ORD
-
YUL
Nonstop2h 15m
Air Canada
Mon 13/76:30 p.m.
YUL
-
ORD
Nonstop2h 35m
Air Canada
Deal found 13/6C$ 419
Thu 3/93:20 p.m.
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Mon 7/96:30 a.m.
YUL
-
ORD
1 stop5h 30m
Porter Airlines
Deal found 16/6C$ 421

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 June 2026.

Round-trip from

C$ 376

One-way from

C$ 215

Popular in

June

Cheapest in

April

Average price

C$ 595

Good round-trip deal

C$ 244 or less

Good one-way deal

C$ 302 or less
Porter Airlines
  • Porter Airlines
  • 15/9-17/9
  • 2 total stops
  • 8h 50m total
  • Illinois to Montreal
Search Deals
Porter Airlines
  • Porter Airlines
  • 13/7
  • 1 total stop
  • 6h 45m total
  • Illinois to Montreal
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 14/7

7:10 a.m.-10:40 a.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

9:45 a.m.-11:20 a.m.

Nonstop2h 35m

C$ 471

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 18/9

2:01 p.m.-5:30 p.m.

Nonstop2h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

3:25 p.m.-10:15 p.m.

1 stop7h 50m

C$ 474

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 17/7

2:08 p.m.-5:30 p.m.

Nonstop2h 22m

Montreal Pierre Elliott Trudeau Intl

Sun 19/7

7:30 a.m.-1:19 p.m.

1 stop6h 49m

C$ 478

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 1/9

3:20 p.m.-8:10 p.m.

1 stop3h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

6:30 a.m.-11:00 a.m.

1 stop5h 30m

C$ 487

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 4/9

1:59 p.m.-11:30 p.m.

1 stop8h 31m

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:00 a.m.-10:42 a.m.

1 stop5h 42m

C$ 488
Quickest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 11/7

8:45 a.m.-12:00 p.m.

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 13/7

8:40 a.m.-10:16 a.m.

Nonstop2h 36m

C$ 498

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 9/7

2:08 p.m.-5:30 p.m.

Nonstop2h 22m

Montreal Pierre Elliott Trudeau Intl

Mon 13/7

1:15 p.m.-2:55 p.m.

Nonstop2h 40m

C$ 499

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 15/7

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

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

6:30 a.m.-9:40 a.m.

1 stop4h 10m

C$ 501

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 17/7

1:18 p.m.-11:25 p.m.

1 stop9h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

6:00 a.m.-12:38 p.m.

1 stop7h 38m

C$ 506

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 1/7

1:26 p.m.-11:28 p.m.

1 stop9h 02m

Montreal Pierre Elliott Trudeau Intl

Mon 6/7

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

1 stop7h 46m

C$ 506

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Showing 1-10 of 54 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 90). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in March is currently the most expensive (average of C$ 223). 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 June 2026.

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 June 2026.

The most flights from USIL to YUL are scheduled on a Wednesday (31 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (23 on average).

How much does it cost to fly round-trip from Illinois to Montreal Pierre Elliott Trudeau Intl Airport?

How far ahead should I book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport?

To ensure you get the cheapest price possible for a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 30m. Fly via United Airlines, Porter 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$ 103. United Airlines flights start at C$ 104 while deals on American Airlines start at C$ 257 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: Finnair (91%), American Airlines (87%), Envoy Air (87%).

  • 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$ 211. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for C$ 376 on average, our data indicates C$ 452 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, February is the cheapest month in which you can book a flight from Illinois to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 90). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in March is currently the most expensive (average of C$ 223). 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
Trois-Rivières
Brossard
Sherbrooke
Cornwall
Longueuil
Montebello
Magog
Boucherville
Bromont
Saint-Jean-sur-Richelieu
Drummondville
North Hatley
Saint-Sauveur
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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Asheville to Pierre Elliott Trudeau Intl flights

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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 449AverageC$ 951FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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Yes! Cheapflights helps users easily find flights from Illinois to Pierre Elliott Trudeau Intl with no change fees.

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