Find flights
Deals
When to book
FAQs

Cheap flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport from C$ 84

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
28 Feb — 7 Mar1
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 29 January 2026.

Thu 7/510:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Sun 10/512:25 p.m.
YUL
-
MDW
1 stop5h 25m
Porter Airlines
Deal found 27/1C$ 265
Wed 25/311:00 a.m.
MDW
-
YUL
1 stop4h 30m
Porter Airlines
Mon 30/36:50 a.m.
YUL
-
MDW
1 stop4h 15m
Porter Airlines
Deal found 27/1C$ 272
Wed 8/411:00 a.m.
MDW
-
YUL
1 stop6h 15m
Porter Airlines
Sun 12/48:55 a.m.
YUL
-
MDW
1 stop7h 25m
Porter Airlines
Deal found 27/1C$ 274
Tue 17/26:00 p.m.
ORD
-
YUL
Nonstop2h 17m
United Airlines
Thu 19/24:45 p.m.
YUL
-
ORD
Nonstop3h 00m
United Airlines
Deal found 27/1C$ 277
Fri 10/411:00 a.m.
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Mon 13/46:45 a.m.
YUL
-
MDW
1 stop4h 20m
Porter Airlines
Deal found 28/1C$ 288
Fri 13/37:15 a.m.
ORD
-
YUL
Nonstop2h 05m
Air Canada
Mon 16/39:25 a.m.
YUL
-
ORD
Nonstop2h 53m
Air Canada
Deal found 28/1C$ 291
Tue 17/210:35 a.m.
ORD
-
YUL
Nonstop2h 25m
United Airlines
Sat 21/29:15 a.m.
YUL
-
ORD
1 stop10h 26m
United Airlines
Deal found 27/1C$ 297
Wed 25/25:00 a.m.
ORD
-
YUL
1 stop7h 45m
American Airlines
Tue 3/33:45 p.m.
YUL
-
ORD
Nonstop2h 59m
American Airlines
Deal found 28/1C$ 304
Fri 5/610:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Sun 7/612:25 p.m.
YUL
-
MDW
1 stop5h 25m
Porter Airlines
Deal found 27/1C$ 307
Thu 26/311:00 a.m.
MDW
-
YUL
1 stop5h 45m
Porter Airlines
Mon 30/36:50 a.m.
YUL
-
MDW
1 stop4h 15m
Porter Airlines
Deal found 27/1C$ 311
Fri 8/510:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Sun 10/512:25 p.m.
YUL
-
MDW
1 stop5h 25m
Porter Airlines
Deal found 27/1C$ 312
Sat 2/58:19 a.m.
ORD
-
YUL
Nonstop2h 25m
American Airlines
Tue 5/54:16 p.m.
YUL
-
ORD
1 stop8h 37m
American Airlines
Deal found 28/1C$ 312

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 29 January 2026.

Round-trip from

C$ 265

One-way from

C$ 84

Popular in

December

Cheapest in

September

Average price

C$ 455

Good one-way deal

C$ 211 or less
Porter Airlines
  • Porter Airlines
  • 7/5-10/5
  • 2 total stops
  • 11h 15m total
  • Illinois to Montreal
Search Deals
Porter Airlines
  • Porter Airlines
  • 18/2
  • 1 total stop
  • 4h 25m total
  • Illinois to Montreal
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 5 potential increase over avg. RT price).
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 January 2026
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 29 January 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

Illinois

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 17/2

6:00 p.m.-9:17 p.m.

Nonstop2h 17m

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

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

Nonstop3h 00m

C$ 277

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 17/2

10:35 a.m.-2:00 p.m.

Nonstop2h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

9:15 a.m.-6:41 p.m.

1 stop10h 26m

C$ 297

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 5/6

10:25 a.m.-5:15 p.m.

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 7/6

12:25 p.m.-4:50 p.m.

1 stop5h 25m

C$ 307

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 16/4

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

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

8:55 a.m.-11:50 a.m.

1 stop3h 55m

C$ 314

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 19/2

11:05 a.m.-4:30 p.m.

1 stop4h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

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

1 stop4h 25m

C$ 319

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 12/3

6:00 a.m.-5:31 p.m.

1 stop10h 31m

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

6:00 a.m.-12:29 p.m.

1 stop7h 29m

C$ 322

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 8/5

1:05 p.m.-11:58 p.m.

1 stop9h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

7:00 a.m.-11:56 a.m.

1 stop5h 56m

C$ 322

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 12/3

6:00 a.m.-5:31 p.m.

1 stop10h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

12:42 p.m.-10:31 p.m.

1 stop10h 49m

C$ 322

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 8/5

3:35 p.m.-11:58 p.m.

1 stop7h 23m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:00 a.m.-12:39 p.m.

1 stop7h 39m

C$ 322

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Mon 23/2

10:35 a.m.-2:00 p.m.

Nonstop2h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

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

1 stop6h 05m

C$ 323

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 57 results
1
2
3
...
6

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$ 144). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 365). 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 29 January 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 29 January 2026.

The most flights from USIL to YUL are scheduled on a Wednesday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 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 17m. 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$ 100. United Airlines flights start at C$ 101 while deals on Porter Airlines start at C$ 176 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: Japan Airlines (75%), Porter Airlines (75%), Qantas Airways (75%).

  • 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$ 200. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for C$ 285 on average, our data indicates C$ 211 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$ 144). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 365). 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
Sherbrooke
Cornwall
Brossard
Montebello
Boucherville
Longueuil
Drummondville
Magog
Saint-Jean-sur-Richelieu
Bromont
North Hatley
Saint-Sauveur
Louiseville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Midway to Pierre Elliott Trudeau Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Orlando to Pierre Elliott Trudeau Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Hobby to Pierre Elliott Trudeau Intl flights
Charlotte to Pierre Elliott Trudeau Intl flights
Detroit to Pierre Elliott Trudeau Intl flights
Seattle to Pierre Elliott Trudeau Intl flights
George Bush Intcntl to Pierre Elliott Trudeau Intl flights
Nashville to Pierre Elliott Trudeau Intl flights
Austin to Pierre Elliott Trudeau Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Tampa to Pierre Elliott Trudeau Intl flights
Raleigh to Pierre Elliott Trudeau Intl flights
West Palm Beach to Pierre Elliott Trudeau Intl flights
Sky Harbor Intl to Pierre Elliott Trudeau Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
Portland to Pierre Elliott Trudeau Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Cleveland to Pierre Elliott Trudeau Intl flights
Cincinnati to Pierre Elliott Trudeau Intl flights
Jacksonville to Pierre Elliott Trudeau Intl flights
Columbus to Pierre Elliott Trudeau Intl flights
San Antonio to Pierre Elliott Trudeau Intl flights
Indianapolis to Pierre Elliott Trudeau Intl flights
Greensboro to Pierre Elliott Trudeau Intl flights
Pittsburgh to Pierre Elliott Trudeau Intl flights
St. Louis to Pierre Elliott Trudeau Intl flights
Kansas City to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
New Orleans to Pierre Elliott Trudeau Intl flights
Love Field to Pierre Elliott Trudeau Intl flights
Salt Lake City to Pierre Elliott Trudeau Intl flights
Hartford to Pierre Elliott Trudeau Intl flights
Grand Rapids 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 300AverageC$ 654FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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 Pierre Elliott Trudeau Intl from Illinois today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Illinois to Pierre Elliott Trudeau Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to Pierre Elliott Trudeau Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Illinois to Pierre Elliott Trudeau Intl with no change fees?

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.