How does KAYAK find such low prices on flights from Illinois to Montreal?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Montreal.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Montreal?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Montreal?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Montreal?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$148 CHEAP FLIGHTS from Illinois to Montreal (YUL)

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Flight Deals

Cheap Flights from Illinois to Montreal

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Montreal

Fri, Nov 13 - Tue, Nov 17

3:40 pm - 7:02 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 22mnonstop

9:25 am - 11:07 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$333Air Canada

Tue, Nov 17 - Tue, Nov 24

7:05 am - 10:17 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 12mnonstop

9:25 am - 11:07 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$333Air Canada

Tue, Nov 17 - Tue, Nov 24

12:20 pm - 7:05 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

5h 45m1 stop Toronto Island

6:10 pm - 7:52 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$341Multiple Airlines

Tue, Nov 17 - Tue, Nov 24

12:20 pm - 7:05 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

5h 45m1 stop Toronto Island

12:10 pm - 5:43 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

6h 33m1 stop Toronto Pearson Intl

$349Multiple Airlines

Wed, Dec 23 - Thu, Dec 31

12:20 pm - 7:05 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

5h 45m1 stop Toronto Island

9:45 am - 5:40 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

8h 55m1 stop Toronto Island

$375Porter Airlines

Tue, Oct 20 - Sat, Oct 24

11:45 am - 6:12 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

5h 27m1 stop Toronto Island

6:30 am - 11:00 amYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

5h 30m1 stop Toronto Island

$375Porter Airlines

Fri, Nov 6 - Sat, Nov 7

9:48 pm - 1:28 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

14h 40m1 stop Newark

4:45 pm - 6:46 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

$376United Airlines

Wed, Nov 4 - Wed, Nov 4

5:55 am - 1:28 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 33m1 stop Newark

4:45 pm - 6:46 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

$376United Airlines

Tue, Oct 20 - Wed, Oct 28

1:55 pm - 11:25 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

8h 30m1 stop Detroit Metropolitan Wayne County

12:50 pm - 8:30 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

8h 40m1 stop Detroit Metropolitan Wayne County

$386Delta

Wed, Oct 14 - Sat, Oct 17

7:00 am - 4:15 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

8h 15m1 stop Detroit Metropolitan Wayne County

9:30 am - 1:39 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

5h 09m1 stop New York LaGuardia

$386Delta

Recent last minute flight deals from Illinois to Montreal

Wed, Oct 7 - Wed, Oct 14

8:45 am - 12:00 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 15mnonstop

6:30 pm - 8:12 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$502Air Canada

Wed, Oct 7 - Wed, Oct 14

2:00 pm - 9:45 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 45m1 stop Toronto Island

6:30 pm - 8:12 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$507Air Canada

Sat, Oct 10 - Wed, Oct 14

2:01 pm - 5:30 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 29mnonstop

9:45 am - 11:21 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 36mnonstop

$508United Airlines

Thu, Oct 8 - Tue, Oct 13

7:00 am - 4:15 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

8h 15m1 stop Detroit Metropolitan Wayne County

12:50 pm - 4:32 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

4h 42m1 stop Detroit Metropolitan Wayne County

$515Delta

Thu, Oct 8 - Tue, Oct 13

1:27 pm - 11:25 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

8h 58m1 stop Detroit Metropolitan Wayne County

6:00 am - 12:47 pmYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

7h 47m1 stop Detroit Metropolitan Wayne County

$515Delta

Sat, Oct 10 - Wed, Oct 14

4:00 pm - 10:06 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

5h 06m1 stop Newark

9:45 am - 11:21 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 36mnonstop

$518United Airlines

Tue, Oct 6 - Sat, Oct 10

3:20 pm - 9:12 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

4h 52m1 stop Toronto Island

6:30 am - 11:00 amYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

5h 30m1 stop Toronto Island

$531Porter Airlines

Tue, Oct 6 - Sat, Oct 10

3:20 pm - 9:12 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

4h 52m1 stop Toronto Island

6:30 am - 11:00 amYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

5h 30m1 stop Toronto Island

$544Porter Airlines

Thu, Oct 8 - Sat, Oct 10

2:01 pm - 5:30 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 29mnonstop

4:55 pm - 6:43 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

$599Lufthansa

Wed, Oct 7 - Wed, Oct 14

6:00 am - 1:09 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 09m1 stop Newark

6:55 pm - 9:00 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

15h 05m2 stops Ottawa Toronto Pearson Intl

$599Multiple Airlines

Recent direct flight deals from Illinois to Montreal

Fri, Nov 13 - Tue, Nov 17

3:40 pm - 7:02 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 22mnonstop

9:25 am - 11:07 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$333Air Canada

Tue, Nov 17 - Tue, Nov 24

7:05 am - 10:17 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 12mnonstop

9:25 am - 11:07 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$333Air Canada

Thu, Nov 19 - Sun, Nov 22

7:05 am - 10:17 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 12mnonstop

6:00 am - 8:00 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 00mnonstop

$386Lufthansa

Thu, Nov 19 - Sun, Nov 22

7:05 am - 10:17 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 12mnonstop

6:00 am - 8:00 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 00mnonstop

$387Lufthansa

Wed, Dec 9 - Tue, Dec 15

8:08 am - 11:28 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 20mnonstop

12:08 pm - 2:13 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$396American Airlines

Mon, Dec 7 - Tue, Dec 15

8:08 am - 11:28 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 20mnonstop

12:08 pm - 2:13 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$396American Airlines

Sun, Nov 8 - Sat, Nov 21

10:37 am - 2:00 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 23mnonstop

4:45 pm - 6:46 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

$396United Airlines

Tue, Nov 3 - Sun, Nov 8

10:37 am - 2:00 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 23mnonstop

6:00 am - 8:00 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 00mnonstop

$396United Airlines

Fri, Dec 11 - Wed, Dec 16

8:08 am - 11:28 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 20mnonstop

12:08 pm - 2:13 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$537Porter Airlines

Thu, Feb 25 - Wed, Mar 3

11:46 am - 3:05 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 19mnonstop

3:55 pm - 5:55 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 00mnonstop

$547Porter Airlines

Useful Info

Low season	February
High season	December
Cheapest flight	$148

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 6% increase in price.

Flight from Chicago O'Hare Airport to Montreal

MonyeeFlew with United Airlines-Sep 2026

Chicago is a large airport so it takes time to commute from one gate to another.

ScottFlew with Air Canada-Jun 2026

Make sure you have enough time between connecting flights so ½ of your baggage doesn't miss the flight and take another 24hrs to show up

valerieFlew with Air Canada-Jan 2025

“Meal” usually means more than a light snack. I thought what they served was an appetizer not the total meal. So I’d eat before or bring food.

How does KAYAK find such low prices on flights from Illinois to Montreal?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Montreal.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Montreal?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Montreal?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Montreal?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Trois-Rivières

Brossard

Bromont

Dorval

Longueuil

Saint-Sauveur

Montebello

Boucherville

Sutton

North Hatley

Louiseville

Eastman

Waterloo

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YUL

$148 Find Cheap Flights from Illinois to Montreal - Compare and Save

Cheap Flights from Illinois to Montreal

Recent round-trip flight deals from Illinois to Montreal

Recent one-way flight deals from Illinois to Montreal

Recent last minute flight deals from Illinois to Montreal

Recent direct flight deals from Illinois to Montreal

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Flights from Illinois to Montreal: the best tips from KAYAK users

FAQs for booking Illinois to Montreal flights

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More options for your flight to Montreal

Complete your trip to Montreal with a hotel stay or car rental

Information on your arrival and departure airports

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Find direct flights for Montreal

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