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.

$150 CHEAP FLIGHTS from Illinois to Montreal (YUL)

Save 19% or more on flights. Compare deals from all over the web.

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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

Thu, Nov 12 - Mon, Nov 16

9:51 am - 5:27 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 36m1 stop Atlanta Hartsfield-Jackson

6:35 pm - 11:54 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

6h 19m1 stop Atlanta Hartsfield-Jackson

$322KLM

Thu, Oct 22 - Sat, Oct 24

9:55 am - 6:52 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

7h 57m1 stop Toronto Pearson Intl

7:30 am - 2:55 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

8h 25m1 stop Toronto Pearson Intl

$323Air Canada

Thu, Nov 12 - Mon, Nov 16

9:51 am - 5:27 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 36m1 stop Atlanta Hartsfield-Jackson

6:35 pm - 11:54 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

6h 19m1 stop Atlanta Hartsfield-Jackson

$329KLM

Mon, Nov 16 - Thu, Nov 19

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

2h 12mnonstop

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

2h 42mnonstop

$333Air Canada

Wed, Oct 21 - 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

$352Porter Airlines

Mon, Dec 7 - Tue, Dec 15

6:41 pm - 11:33 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

3h 52m1 stop Detroit Metropolitan Wayne County

7:10 am - 4:50 pmYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

10h 40m1 stop Minneapolis St Paul

$358Delta

Sat, Nov 7 - Wed, Nov 11

6:04 am - 1:39 pmMDW Chicago Midway-YUL Montreal Pierre Elliott Trudeau Intl

6h 35m1 stop Atlanta Hartsfield-Jackson

6:00 am - 9:46 amYUL Montreal Pierre Elliott Trudeau Intl-MDW Chicago Midway

4h 46m1 stop Detroit Metropolitan Wayne County

$358Delta

Mon, Dec 21 - Thu, Dec 24

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

5h 45m1 stop Toronto Island

4:00 pm - 6:05 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$368Porter Airlines

Sun, Nov 22 - Mon, Nov 23

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

Fri, Dec 11 - Sat, Dec 12

9:34 pm - 1:28 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

14h 54m1 stop Newark

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

3h 01mnonstop

$376United Airlines

Recent last minute flight deals from Illinois to Montreal

Sat, Oct 10 - Mon, Oct 12

1:29 pm - 4:52 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 23mnonstop

6:00 am - 12:59 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

7h 59m1 stop Detroit Metropolitan Wayne County

$455Multiple Airlines

Sat, Oct 10 - Mon, Oct 12

1:29 pm - 4:52 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 23mnonstop

5:34 pm - 7:19 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 45mnonstop

$471Porter Airlines

Wed, Oct 14 - Wed, Oct 21

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

$490Air Canada

Wed, Oct 14 - Sat, Oct 24

3:40 pm - 7:01 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 21mnonstop

8:35 am - 10:12 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 37mnonstop

$490Air Canada

Sat, Oct 10 - Sun, Nov 8

3:15 pm - 11:54 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

7h 39m1 stop Atlanta Hartsfield-Jackson

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

8h 40m1 stop Detroit Metropolitan Wayne County

$504Delta

Wed, Oct 14 - Sat, Oct 24

8:29 am - 4:15 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

6h 46m1 stop Detroit Metropolitan Wayne County

7:00 am - 3:00 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

$508Delta

Wed, Oct 14 - Mon, Oct 19

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

$509Porter Airlines

Sat, Oct 10 - Sun, Nov 8

5:00 am - 1:09 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Newark

10:40 am - 7:58 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

10h 18m2 stops Ottawa Toronto Pearson Intl

$589Multiple Airlines

Sat, Oct 10 - Sat, Oct 10

5:00 am - 1:09 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Newark

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

2h 48mnonstop

$662United Airlines

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

$682United Airlines

Recent direct flight deals from Illinois to Montreal

Wed, Nov 4 - Sat, Nov 7

3:40 pm - 6:52 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 12mnonstop

1:10 pm - 2:52 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

2h 42mnonstop

$333Air Canada

Sat, Oct 31 - Mon, Nov 2

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

2h 12mnonstop

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

2h 42mnonstop

$333Air Canada

Wed, Oct 28 - Sat, Oct 31

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

$358Lufthansa

Sat, Nov 7 - Wed, Nov 11

8:08 am - 11:25 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 17mnonstop

12:10 pm - 2:15 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$396American Airlines

Sat, Dec 5 - Thu, Dec 10

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

Sat, Dec 12 - Sat, Dec 12

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

Thu, Dec 24 - Sat, Dec 26

10:33 am - 2:00 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 27mnonstop

6:00 am - 8:07 amYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 07mnonstop

$396United Airlines

Thu, Nov 19 - Thu, Nov 26

8:08 am - 11:26 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 18mnonstop

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

2h 42mnonstop

$442Multiple Airlines

Wed, Nov 18 - Wed, Nov 25

8:08 am - 11:25 amORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 17mnonstop

12:10 pm - 2:15 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$529Porter Airlines

Thu, Dec 24 - Sun, Dec 27

11:51 am - 3:14 pmORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 23mnonstop

4:00 pm - 6:05 pmYUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

$561Porter Airlines

Useful Info

Low season	February
High season	December
Cheapest flight	$150

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 Midway 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

$150 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

Traveling to a place near Montreal?

More options for your flight to Montreal

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

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Find direct flights for Montreal

Flights from domestic origins to Illinois

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