YUL

$142 Find Cheap Flights from Illinois to Montreal - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Montreal departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to Montreal

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Montreal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Montreal

Mon, Oct 19 - Mon, Oct 19
Air Canada Logo
11:05 am - 2:18 pm
ORD
-
YUL
2h 13mnonstop
Air Canada Logo
4:30 pm - 8:29 pm
YUL
-
ORD
4h 59m
1 stop
$249Air Canada
Sun, Oct 18 - Sun, Oct 18
Air Canada Logo
8:45 am - 12:00 pm
ORD
-
YUL
2h 15mnonstop
Air Canada Logo
2:10 pm - 7:48 pm
YUL
-
ORD
6h 38m
1 stop
$257Air Canada
Wed, Nov 4 - Fri, Nov 13
Porter Airlines Logo
11:45 am - 7:05 pm
ORD
-
YUL
6h 20m
1 stop
Porter Airlines Logo
9:45 am - 5:30 pm
YUL
-
ORD
8h 45m
1 stop
$297Porter Airlines
Wed, Nov 4 - Sun, Nov 8
Porter Airlines Logo
11:45 am - 7:05 pm
ORD
-
YUL
6h 20m
1 stop
Porter Airlines Logo
9:45 am - 5:30 pm
YUL
-
ORD
8h 45m
1 stop
$298Porter Airlines
Sat, Oct 10 - Tue, Oct 13
Multiple Airlines Logo
2:00 pm - 11:27 pm
ORD
-
YUL
8h 27m
1 stop
Multiple Airlines Logo
5:34 pm - 7:19 pm
YUL
-
ORD
2h 45mnonstop
$303Multiple Airlines
Tue, Sep 1 - Thu, Sep 24
American Airlines Logo
6:00 am - 4:50 pm
STL
-
YUL
9h 50m
1 stop
American Airlines Logo
12:31 pm - 12:27 am
YUL
-
STL
12h 56m
1 stop
$485American Airlines
Tue, Sep 1 - Thu, Sep 24
American Airlines Logo
9:32 am - 9:44 pm
STL
-
YUL
11h 12m
2 stops
American Airlines Logo
12:31 pm - 12:27 am
YUL
-
STL
12h 56m
1 stop
$495American Airlines
Fri, Nov 6 - Sun, Nov 8
WestJet Logo
6:00 am - 2:12 pm
STL
-
YUL
31h 12m
2 stops
WestJet Logo
6:00 am - 1:09 pm
YUL
-
STL
8h 09m
1 stop
$521WestJet
Tue, Oct 27 - Tue, Oct 27
WestJet Logo
6:40 am - 11:58 am
STL
-
YUL
4h 18m
1 stop
WestJet Logo
4:15 pm - 4:23 pm
YUL
-
STL
25h 08m
2 stops
$522WestJet
Fri, Aug 21 - Mon, Aug 24
Multiple Airlines Logo
6:17 pm - 2:08 pm
STL
-
YUL
18h 51m
2 stops
Multiple Airlines Logo
5:10 pm - 8:42 pm
YUL
-
STL
4h 32m
1 stop
$549Multiple Airlines
Useful Info

Good to know

Low season

February

Cheapest flight

$142
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Chicago Midway Airport to Montreal

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

Insights shared by verified travelers who flew the route from Illinois to Montreal 
Learn how KAYAK collects reviews and tips from users.
ScottFlew with Air Canada
ORD
-
YUL
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
ORD
-
YUL
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.

FAQs for booking Illinois to Montreal flights

  • 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.

Traveling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Trois-Rivières
Brossard
Dorval
Bromont
Longueuil
Saint-Sauveur
Montebello
Boucherville
Sutton
North Hatley
Louiseville
Eastman
Waterloo

Everything you need to know for your flight to Montreal

Information on your arrival and departure airports

Montreal (YUL)