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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois departing on 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:15 am - 10:53 am
YUL
-
ORD
2h 38mnonstop
Air Canada Logo
12:50 pm - 4:05 pm
ORD
-
YUL
2h 15mnonstop
$174Air Canada
Thu, Apr 16 - Sun, Apr 19
Porter Airlines Logo
6:50 am - 10:15 am
YUL
-
MDW
4h 25m
1 stop
Porter Airlines Logo
10:30 am - 5:15 pm
MDW
-
YUL
5h 45m
1 stop
$175Porter Airlines
Thu, Apr 30 - Sun, May 3
Porter Airlines Logo
6:30 am - 9:45 am
YUL
-
MDW
4h 15m
1 stop
Porter Airlines Logo
3:20 pm - 10:10 pm
MDW
-
YUL
5h 50m
1 stop
$179Porter Airlines
Fri, May 8 - Mon, May 11
Porter Airlines Logo
6:30 am - 9:45 am
YUL
-
MDW
4h 15m
1 stop
Porter Airlines Logo
10:30 am - 6:15 pm
MDW
-
YUL
6h 45m
1 stop
$180Porter Airlines
Fri, May 8 - Mon, May 11
Porter Airlines Logo
6:50 am - 10:15 am
YUL
-
MDW
4h 25m
1 stop
Porter Airlines Logo
10:30 am - 6:15 pm
MDW
-
YUL
6h 45m
1 stop
$181Porter Airlines
Thu, Apr 30 - Tue, May 12
Porter Airlines Logo
6:30 am - 9:45 am
YUL
-
MDW
4h 15m
1 stop
Porter Airlines Logo
3:20 pm - 10:10 pm
MDW
-
YUL
5h 50m
1 stop
$182Porter Airlines
Wed, May 6 - Wed, May 13
Air Canada Logo
9:15 am - 1:05 pm
YUL
-
ORD
4h 50m
1 stop
Air Canada Logo
8:40 am - 11:51 am
ORD
-
YUL
2h 11mnonstop
$187Air Canada
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
5:00 pm - 6:52 pm
YUL
-
ORD
2h 52mnonstop
United Airlines Logo
7:13 am - 10:40 am
ORD
-
YUL
2h 27mnonstop
$200United Airlines
Wed, Apr 29 - Tue, May 5
Delta Logo
7:41 pm - 12:05 pm
YUL
-
STL
17h 24m
1 stop
Delta Logo
6:05 am - 6:51 pm
STL
-
YUL
11h 46m
1 stop
$447Delta
Fri, May 1 - Tue, May 5
Delta Logo
7:41 pm - 12:05 pm
YUL
-
STL
17h 24m
1 stop
Delta Logo
5:27 pm - 8:40 am
STL
-
YUL
14h 13m
1 stop
$448Delta
Fri, May 1 - Tue, May 5

Air Canada flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight tickets
Air Canada
Apr 16
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
2h 38m
ORD10:53 amChicago O'Hare Intl
Apr 19
ORD12:50 pmChicago O'Hare Intl
2h 15m
YUL4:05 pmMontreal Pierre Elliott Trudeau Intl
$174
Air Canada
Apr 16
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
4h 50m
1 stop
ORD1:05 pmChicago O'Hare Intl
Apr 19
ORD8:40 amChicago O'Hare Intl
2h 11m
YUL11:51 amMontreal Pierre Elliott Trudeau Intl
$187
Air Canada
Jun 4
YUL4:30 pmMontreal Pierre Elliott Trudeau Intl
4h 46m
1 stop
ORD8:16 pmChicago O'Hare Intl
Jun 7
ORD7:25 amChicago O'Hare Intl
5h 20m
1 stop
YUL1:45 pmMontreal Pierre Elliott Trudeau Intl
$191

Porter Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Our best Porter Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight tickets
Porter Airlines
Apr 30
YUL6:50 amMontreal Pierre Elliott Trudeau Intl
4h 25m
1 stop
MDW10:15 amChicago Midway
May 3
MDW10:30 amChicago Midway
5h 45m
1 stop
YUL5:15 pmMontreal Pierre Elliott Trudeau Intl
$175
Porter Airlines
May 8
YUL6:30 amMontreal Pierre Elliott Trudeau Intl
4h 15m
1 stop
MDW9:45 amChicago Midway
May 11
MDW3:20 pmChicago Midway
5h 50m
1 stop
YUL10:10 pmMontreal Pierre Elliott Trudeau Intl
$179
Porter Airlines
May 8
YUL6:30 amMontreal Pierre Elliott Trudeau Intl
4h 15m
1 stop
MDW9:45 amChicago Midway
May 11
MDW10:30 amChicago Midway
6h 45m
1 stop
YUL6:15 pmMontreal Pierre Elliott Trudeau Intl
$180

momondo Fare Finder

 
Customize your flight search to find flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 27, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

9:15 am-10:53 am

Nonstop2h 38m

Chicago O'Hare Intl

Sun 4/19

12:50 pm-4:05 pm

Nonstop2h 15m

$174

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

6:50 am-10:15 am

1 stop4h 25m

Chicago Midway

Sun 5/3

10:30 am-5:15 pm

1 stop5h 45m

$175

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Fri 5/8

6:30 am-9:45 am

1 stop4h 15m

Chicago Midway

Mon 5/11

3:20 pm-10:10 pm

1 stop5h 50m

$179

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Fri 5/8

6:30 am-9:45 am

1 stop4h 15m

Chicago Midway

Mon 5/11

10:30 am-6:15 pm

1 stop6h 45m

$180

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

6:50 am-10:15 am

1 stop4h 25m

Chicago Midway

Tue 5/12

10:30 am-6:15 pm

1 stop6h 45m

$181

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Wed 5/6

6:30 am-9:45 am

1 stop4h 15m

Chicago Midway

Wed 5/13

3:20 pm-10:10 pm

1 stop5h 50m

$182

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

9:15 am-1:05 pm

1 stop4h 50m

Chicago O'Hare Intl

Sun 4/19

8:40 am-11:51 am

Nonstop2h 11m

$187

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

5:00 pm-6:52 pm

Nonstop2h 52m

Chicago O'Hare Intl

Tue 5/5

7:13 am-10:40 am

Nonstop2h 27m

$200

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 5/1

7:41 pm-12:05 pm

1 stop17h 24m

Lambert-St Louis

Tue 5/5

6:05 am-6:51 pm

1 stop11h 46m

$447

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 5/1

7:41 pm-12:05 pm

1 stop17h 24m

Lambert-St Louis

Tue 5/5

5:27 pm-8:40 am

1 stop14h 13m

$448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Montreal Pierre Elliott Trudeau Intl Airport is in January. Flight prices, which tend to average around $232, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $234.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Montreal Pierre Elliott Trudeau Intl Airport to Illinois is on a Friday when prices can be found for as low as $427. Flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois on a Monday will generally be more expensive and average around $679. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois during this time can be as low as $507. Flights at noon are often more expensive with an average ticket price of $544.

What is the cheapest Montreal Pierre Elliott Trudeau Intl to Illinois flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl for the best Montreal Pierre Elliott Trudeau Intl - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $344 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Montreal Pierre Elliott Trudeau Intl Airport for as low as $225 on momondo.

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to Illinois flights?

There are 4 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flights?

No. A direct flight is the cheapest option for a flight between Montreal Pierre Elliott Trudeau Intl Airport to Illinois.

Cheap Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Best Price Found

$180

Fastest flight time

2h 35m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Montreal Pierre Elliott Trudeau Intl Airport in the past 72 hours is $180. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to Illinois found on momondo in the last 72 hours is $306.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Illinois takes 2h 35m
Direct flights go from Montreal Pierre Elliott Trudeau Intl Airport to Illinois every day.
There are 98 airports in Illinois. From Montreal Pierre Elliott Trudeau Intl Airport there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

  • When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

  • How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal Pierre Elliott Trudeau Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to Illinois?

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Illinois

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $156Free CancellationRating
7.1
10,853 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $158Free CancellationRating
8.0
428 reviews
Search Porter Airlines flights
American AirlinesPriceFrom $189Free CancellationRating
7.1
11,517 reviews
Search American Airlines flights
United AirlinesPriceFrom $267Free CancellationRating
7.4
9,500 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Illinois for you.

Can I find flights from Montreal to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Montreal with this policy.

How can momondo help me find flights from Montreal to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Montreal to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Montreal to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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