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$ 151. United Airlines flights start at C$ 225 while deals on American Airlines start at C$ 237 one-way.

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 64.0 mm.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

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 (94%), American Airlines (80%), Envoy Air (80%).

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.

C$ 210+ Cheap Flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport

Cheap flight deals from Illinois to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

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One-way

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 15 September 2026.

Thu 29/1012:20 p.m. -

1 stop5h 45m

Mon 2/1111:10 a.m. -

1 stop5h 28m

Deal found 15/9C$ 431

Sat 26/911:45 a.m. -

1 stop5h 27m

Wed 30/99:00 a.m. -

1 stop6h 35m

Deal found 11/9C$ 432

Thu 29/1012:20 p.m. -

1 stop5h 45m

Thu 5/117:10 a.m. -

1 stop7h 03m

Deal found 14/9C$ 433

Sat 26/911:45 a.m. -

1 stop5h 27m

Sat 3/106:30 a.m. -

1 stop5h 30m

Deal found 12/9C$ 436

Tue 22/911:45 a.m. -

1 stop5h 27m

Fri 25/99:00 a.m. -

1 stop6h 35m

Deal found 10/9C$ 438

Sat 26/97:25 a.m. -

1 stop5h 20m

Wed 30/96:30 p.m. -

Nonstop2h 42m

Deal found 10/9C$ 438

Fri 2/103:20 p.m. -

1 stop4h 52m

Mon 5/106:30 a.m. -

1 stop5h 30m

Deal found 12/9C$ 439

Fri 16/103:20 p.m. -

1 stop4h 52m

Sun 18/1010:35 a.m. -

1 stop5h 00m

Deal found 11/9C$ 440

Thu 1/103:20 p.m. -

1 stop4h 52m

Mon 5/106:30 a.m. -

1 stop5h 30m

Deal found 14/9C$ 442

Fri 9/103:20 p.m. -

1 stop4h 52m

Mon 12/106:30 a.m. -

1 stop5h 30m

Deal found 14/9C$ 443

Thu 29/108:45 a.m. -

1 stop4h 40m

Mon 2/1111:10 a.m. -

1 stop5h 28m

Deal found 15/9C$ 443

Thu 1/103:20 p.m. -

1 stop4h 52m

Thu 15/106:30 a.m. -

1 stop5h 30m

Deal found 15/9C$ 445

Best flights from Illinois to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Illinois to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Thu 21/19:30 a.m. -

1 stop5h 29m

Mon 25/16:00 a.m. -

1 stop7h 33m

Deal found 13/9C$ 514

Wed 25/115:54 p.m. -

Nonstop2h 23m

Sat 28/117:45 a.m. -

1 stop6h 35m

Deal found 15/9C$ 545

Thu 8/102:01 p.m. -

Nonstop2h 29m

Tue 13/109:45 a.m. -

Nonstop2h 36m

Deal found 12/9C$ 583

Fri 22/15:59 p.m. -

1 stop4h 11m

Sun 24/16:00 a.m. -

1 stop7h 33m

Deal found 12/9C$ 514

Tue 13/105:00 a.m. -

1 stop10h 10m

Fri 16/103:30 p.m. -

1 stop5h 18m

Deal found 10/9C$ 545

Sat 7/116:44 p.m. -

1 stop3h 41m

Wed 11/116:00 a.m. -

1 stop7h 51m

Deal found 10/9C$ 517

Tue 29/125:45 p.m. -

Nonstop2h 32m

Sat 2/110:10 a.m. -

1 stop6h 28m

Deal found 11/9C$ 561

Fri 2/102:01 p.m. -

Nonstop2h 29m

Thu 8/106:10 a.m. -

Nonstop2h 41m

Deal found 14/9C$ 625

Fri 11/129:37 a.m. -

1 stop5h 22m

Sun 13/126:00 a.m. -

1 stop8h 01m

Deal found 10/9C$ 517

Sat 21/111:31 p.m. -

1 stop8h 56m

Sat 28/116:00 a.m. -

1 stop7h 51m

Deal found 15/9C$ 517

Tue 29/125:45 p.m. -

Nonstop2h 32m

Sun 3/110:10 a.m. -

1 stop6h 28m

Deal found 11/9C$ 603

Sat 10/105:56 p.m. -

Nonstop2h 30m

Sat 17/106:10 a.m. -

Nonstop2h 41m

Deal found 11/9C$ 681

Fri 6/116:44 p.m. -

1 stop3h 41m

Wed 11/116:00 a.m. -

1 stop7h 51m

Deal found 10/9C$ 517

Sat 12/129:37 a.m. -

1 stop5h 22m

Thu 17/126:00 a.m. -

1 stop8h 01m

Deal found 13/9C$ 517

Sat 3/105:56 p.m. -

Nonstop2h 30m

Sun 4/108:35 a.m. -

Nonstop2h 37m

Deal found 14/9C$ 645

Fri 16/107:00 a.m. -

1 stop8h 15m

Mon 19/1012:50 p.m. -

1 stop8h 40m

Deal found 14/9C$ 517

Sat 3/107:00 a.m. -

1 stop5h 31m

Sat 31/106:00 a.m. -

1 stop7h 59m

Deal found 14/9C$ 517

Fri 30/101:08 p.m. -

1 stop20h 09m

Sat 31/101:10 p.m. -

1 stop9h 30m

Deal found 10/9C$ 906

Wed 7/1010:05 a.m. -

1 stop7h 53m

Sun 11/106:00 a.m. -

1 stop7h 41m

Deal found 12/9C$ 517

Sat 24/101:27 p.m. -

1 stop8h 58m

Tue 27/106:00 a.m. -

1 stop4h 32m

Deal found 11/9C$ 518

Tue 29/126:15 p.m. -

1 stop4h 12m

Wed 6/16:00 a.m. -

1 stop7h 33m

Deal found 12/9C$ 535

Tue 13/108:30 a.m. -

1 stop5h 10m

Tue 13/104:55 p.m. -

Nonstop2h 46m

Deal found 14/9C$ 965

Tue 6/109:30 a.m. -

1 stop5h 40m

Tue 13/104:55 p.m. -

Nonstop2h 46m

Deal found 10/9C$ 1,000

Thu 29/106:44 p.m. -

1 stop3h 41m

Thu 5/116:00 a.m. -

1 stop4h 32m

Deal found 13/9C$ 582

Fri 9/1010:27 a.m. -

1 stop6h 03m

Mon 12/104:55 p.m. -

Nonstop2h 46m

Deal found 12/9C$ 1,007

Thu 29/106:44 p.m. -

1 stop3h 41m

Mon 2/116:00 a.m. -

1 stop7h 47m

Deal found 15/9C$ 582

Sat 10/102:00 p.m. -

1 stop17h 31m

Tue 13/1012:50 p.m. -

1 stop5h 29m

Deal found 15/9C$ 888

Sat 10/102:00 p.m. -

1 stop17h 31m

Mon 12/106:50 p.m. -

1 stop6h 04m

Deal found 15/9C$ 888

Wed 11/116:00 p.m. -

1 stop4h 27m

Tue 17/119:40 a.m. -

2 stops11h 49m

Deal found 14/9C$ 1,018

Tue 10/116:00 a.m. -

2 stops11h 58m

Mon 16/117:00 a.m. -

1 stop7h 23m

Deal found 13/9C$ 1,018

Find flight deals from Illinois to Pierre Elliott Trudeau Intl

Round-trip from	C$ 431
One-way from	C$ 210
Popular in	August
Cheapest in	April
Average price	C$ 549
Good round-trip deal	C$ 279 or less
Good one-way deal	C$ 312 or less

Air Canada
29/10-2/11
2 total stops
11h 13m total
Illinois to Montreal

Search Deals

Air Canada
13/3-31/12
1 total stop
4h 59m total
Illinois to Montreal

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (C$ 80 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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

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 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

ChicagoMontreal

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

ORDYUL

Chicago O'Hare Intl

Tue 15/12

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

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Mon 23/11

9:30 a.m.-3:58 p.m.

1 stop5h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Tue 27/10

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

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Tue 24/11

1:31 p.m.-11:27 p.m.

1 stop8h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

MDW Chicago Midway - YUL Montreal Pierre Elliott Trudeau Intl

MDWYUL

Chicago Midway

Wed 16/12

1:41 p.m.-11:33 p.m.

1 stop8h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

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

ORDYUL

Chicago O'Hare Intl

Sat 10/10

7:00 a.m.-11:57 a.m.

1 stop3h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

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

ORDYUL

Chicago O'Hare Intl

Thu 8/10

7:00 a.m.-4:15 p.m.

1 stop8h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

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

ORDYUL

Chicago O'Hare Intl

Thu 15/10

8:29 a.m.-4:15 p.m.

1 stop6h 46m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 218

ChicagoMontreal

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

ORDYUL

Chicago O'Hare Intl

Wed 7/10

7:00 a.m.-11:57 a.m.

1 stop3h 57m

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 10/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

ORD-YUL

MDW-YUL

STL-YUL

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

USIL-YUL

ORD-YUL

MDW-YUL

STL-YUL

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$ 370). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 685). 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?

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

The most flights from USIL to YUL are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

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

Airfare is below average for this route at the moment.

Illinois to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between C$ 468 and C$ 714 in October.
The cheapest round-trip price found within the last 5 days was C$ 431 on Multiple Airlines (29 Oct-2 Nov).

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 59 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

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 29m. Fly via Delta or United Airlines to get the fastest option. There are 1196 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$ 151. United Airlines flights start at C$ 225 while deals on American Airlines start at C$ 237 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 (94%), American Airlines (80%), Envoy Air (80%).
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$ 194. While the most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) can be booked for C$ 454 on average, our data indicates C$ 400 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$ 370). Flying from Illinois to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 685). 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.

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Cornwall

Boucherville

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Magog

Montebello

Saint-Jean-sur-Richelieu

Drummondville

North Hatley

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Louiseville

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Top airline flying from Illinois to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 235	AverageC$ 486	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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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!

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Cheap flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport from C$ 210

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Pierre Elliott Trudeau Intl

Cheapest flights from Illinois to Pierre Elliott Trudeau IntlExplore 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 15 September 2026.

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 15 September 2026.

Best flights from Illinois to Pierre Elliott Trudeau IntlDiscover carefully curated flight deals from Illinois to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Discover carefully curated flight deals from Illinois to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Direct flights from Illinois to Pierre Elliott Trudeau IntlExplore direct flight options from Illinois to Pierre Elliott Trudeau Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.

Explore direct flight options from Illinois to Pierre Elliott Trudeau Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.

Last-minute flights from Illinois to Pierre Elliott Trudeau IntlDiscover last-minute flight deals from Illinois to Pierre Elliott Trudeau Intl. Data last updated 15 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Pierre Elliott Trudeau Intl. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Illinois to Pierre Elliott Trudeau IntlSearch for one-way flight options from Illinois to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Search for one-way flight options from Illinois to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Find flight deals from Illinois to Pierre Elliott Trudeau Intl

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One-way from

Popular in

Cheapest in

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Good round-trip deal

Good one-way deal

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Use the filters below to find and compare flights from Illinois to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

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.

Cheapflights Insights

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

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 15 September 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

The most flights from USIL to YUL are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

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

Airfare is below average for this route at the moment.

Illinois to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between C$ 468 and C$ 714 in October.The cheapest round-trip price found within the last 5 days was C$ 431 on Multiple Airlines (29 Oct-2 Nov).

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

Related info for your journey

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

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

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

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

What are the cheapest flights 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?

How can I 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?

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

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

Browse thousands of different options on Cheapflights for your next trip

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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.

Complete your trip

Complete your trip to Pierre Elliott Trudeau Intl by adding a car rental and/or hotel reservation to your travel itinerary.

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Cheapest flights from Illinois to Pierre Elliott Trudeau Intl
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Best flights from Illinois to Pierre Elliott Trudeau Intl
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Direct flights from Illinois to Pierre Elliott Trudeau Intl
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Last-minute flights from Illinois to Pierre Elliott Trudeau Intl
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One-way flights from Illinois to Pierre Elliott Trudeau Intl
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Illinois to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between C$ 468 and C$ 714 in October.
The cheapest round-trip price found within the last 5 days was C$ 431 on Multiple Airlines (29 Oct-2 Nov).