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Cheap flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport from C$ 209

CHI — YUL
12 Oct — 19 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago to Montreal Pierre Elliott Trudeau Intl are usually found in February or April, booked 40 days in advance, depart on a Tuesday or Friday and return on a Thursday

Cheap flight deals from Chicago to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

Cheapest flights from Chicago to Pierre Elliott Trudeau Intl

Fri 16/103:20 p.m. -
1 stop4h 52m
Mon 19/106:30 a.m. -
1 stop5h 30m
Deal found 10/9C$ 431
Fri 16/1011:15 a.m. -
Nonstop2h 15m
Mon 19/108:35 a.m. -
Nonstop2h 37m
Deal found 10/9C$ 431
Wed 7/103:20 p.m. -
1 stop4h 52m
Wed 14/106:30 a.m. -
1 stop5h 30m
Deal found 9/9C$ 432
Fri 6/117:05 a.m. -
Nonstop2h 12m
Fri 6/111:10 p.m. -
Nonstop2h 42m
Deal found 9/9C$ 432
Sat 10/1011:45 a.m. -
1 stop5h 27m
Sun 11/1010:35 a.m. -
1 stop5h 00m
Deal found 9/9C$ 434
Fri 2/107:25 a.m. -
2 stops7h 03m
Mon 5/109:10 a.m. -
1 stop5h 13m
Deal found 9/9C$ 434
Mon 5/1011:45 a.m. -
1 stop5h 27m
Thu 15/106:30 a.m. -
1 stop5h 30m
Deal found 10/9C$ 435
Wed 14/102:00 p.m. -
1 stop6h 45m
Wed 21/1011:10 a.m. -
1 stop4h 45m
Deal found 9/9C$ 435
Tue 22/911:45 a.m. -
1 stop5h 27m
Fri 25/99:00 a.m. -
1 stop6h 35m
Deal found 10/9C$ 436
Sat 26/97:25 a.m. -
1 stop5h 20m
Wed 30/96:30 p.m. -
Nonstop2h 42m
Deal found 10/9C$ 436
Tue 22/93:20 p.m. -
1 stop4h 52m
Sat 26/96:30 a.m. -
1 stop5h 30m
Deal found 8/9C$ 438
Fri 16/103:20 p.m. -
1 stop4h 52m
Sun 18/1010:35 a.m. -
1 stop5h 00m
Deal found 9/9C$ 439

Find flight deals from Chicago to Pierre Elliott Trudeau Intl

Round-trip from

C$ 431

One-way from

C$ 209

Popular in

January

Cheapest in

February

Average price

C$ 542

Good round-trip deal

C$ 256 or less

Good one-way deal

C$ 311 or less
Porter Airlines
  • Porter Airlines
  • 16/10-19/10
  • 2 total stops
  • 10h 22m total
  • Chicago to Montreal
Search Deals
Porter Airlines
  • Porter Airlines
  • 26/9-31/12
  • 1 total stop
  • 5h 27m total
  • Chicago to Montreal
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 87 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 42 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Chicago (CHI) to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Montreal Pierre Elliott Trudeau Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Chicago 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 Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Thu 11/3

12:20 p.m.-7:05 p.m.

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 209

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Tue 20/10

3:20 p.m.-9:12 p.m.

1 stop4h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 211

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Mon 19/10

3:20 p.m.-9:12 p.m.

1 stop4h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 211

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Wed 23/9

3:20 p.m.-9:12 p.m.

1 stop4h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 211

ChicagoMontreal

ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Wed 4/11

12:20 p.m.-7:05 p.m.

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 211

ChicagoMontreal

ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Sun 6/12

12:20 p.m.-7:05 p.m.

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 211
Quickest round-trip

ChicagoMontreal

ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Tue 27/10

1:55 p.m.-5:07 p.m.

Nonstop2h 12m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 215

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Wed 28/10

9:29 a.m.-4:15 p.m.

1 stop5h 46m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 216

ChicagoMontreal

ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Wed 7/10

11:30 a.m.-6:58 p.m.

1 stop6h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 216

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Tue 3/11

1:27 p.m.-11:25 p.m.

1 stop8h 58m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 218

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 43 resultsSorted by cheapest first
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Best time to book a flight from Chicago to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Chicago with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Chicago to Montreal Pierre Elliott Trudeau Intl Airport

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

Currently, February is the cheapest month in which you can book a flight from Chicago to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 369). Flying from Chicago to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 683). 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 CHI to YUL?

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

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

The most flights from CHI to YUL are scheduled on a Wednesday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (27 on average).

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

Airfare is below average for this route at the moment.
Chicago to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between C$ 449 and C$ 662 in October.
The cheapest round-trip price found within the last 5 days was C$ 431 on Porter Airlines (16 Oct-19 Oct).

How often are flights from Chicago to Montreal delayed?

About 20% of weekly flights between Chicago and Montreal have experienced delays in the past year, with the average delay time being 139 minutes.

What is the most punctual flight time for Chicago to Montreal flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Montreal flights?

Over the past year, American Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.

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

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get a feel of what it's like to fly with Air Canada from Chicago to Montreal Pierre Elliott Trudeau Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,617 reviews
Check prices

Overall

7.1

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Reviews

1 / 20
4.0
Okay

Anonymous,May 2026

YYJ - YUL

The pouch in front of my seat was never cleaned. The hospitality I requested wasn't there for me. Perhaps as looking at me you wouldn't think I needed it. I push myself then pay for it later. Like last night and today....... The flight had a generator problem, we had to debark the plane as there was no staff to repair it , therefore we had to wait for staff to come from Vancouver to repair it. The staff on hand though were very good at keeping us informed and making sure of any questions we had at that point. Once repaired all went well. Then just the hospitality wasn't there. When I did ask at the desk after the long walk from the plane the young person attending said baggage is just over there. Well just over there to a 30 year old and a 76 year old with mobility problems is quite different !
Air Canada
7.1
Good
11,617 reviews
Air Canada
7.1
Good
11,617 reviews
Check prices

Overall

7.1

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Reviews

1 / 20
4.0
Okay

Anonymous,May 2026

YYJ - YUL

The pouch in front of my seat was never cleaned. The hospitality I requested wasn't there for me. Perhaps as looking at me you wouldn't think I needed it. I push myself then pay for it later. Like last night and today....... The flight had a generator problem, we had to debark the plane as there was no staff to repair it , therefore we had to wait for staff to come from Vancouver to repair it. The staff on hand though were very good at keeping us informed and making sure of any questions we had at that point. Once repaired all went well. Then just the hospitality wasn't there. When I did ask at the desk after the long walk from the plane the young person attending said baggage is just over there. Well just over there to a 30 year old and a 76 year old with mobility problems is quite different !

Related info for your journey

  • How long is the flight from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

    There are many flights that can get you from Chicago to Montreal Pierre Elliott Trudeau Intl Airport in 3h 41m. Fly via Delta or United Airlines to get the fastest option. Airlines will cover a distance of 1196 km. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Chicago to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Cheapflights users have booked flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport round-trip from C$ 234. This flight start at 57% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Chicago to Montreal Pierre Elliott Trudeau Intl Airport are Air Canada (C$ 178), United Airlines (C$ 224), and American Airlines (C$ 236).

  • What are the most reliable airlines from Chicago 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 Chicago to Montreal Pierre Elliott Trudeau Intl Airport on time: Finnair (94%), American Airlines (80%), Envoy Air (80%).

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

    Looking at all options, your cheapest flight can be booked for C$ 194. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for C$ 420 on average, our data indicates C$ 399 when flying from Chicago to Montreal Pierre Elliott Trudeau Intl Airport.

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

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

  • How can I find direct flights from Chicago 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 Chicago to Pierre Elliott Trudeau Intl.

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

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

    Currently, February is the cheapest month in which you can book a flight from Chicago to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 369). Flying from Chicago to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 683). 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
Longueuil
Cornwall
Boucherville
Bromont
Magog
Montebello
Saint-Jean-sur-Richelieu
Drummondville
North Hatley
Saint-Sauveur
Louiseville

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Chicago to Pierre Elliott Trudeau Intl

O'Hare Intl to Pierre Elliott Trudeau Intl flights
Midway to Pierre Elliott Trudeau Intl flights
St. Louis to Pierre Elliott Trudeau Intl flights

Top airline flying from Chicago to Pierre Elliott Trudeau Intl

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 234AverageC$ 485FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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