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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Illinois from C$ 137

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 16/3. 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.
Porter Airlines Logo
6:45 a.m. - 10:05 a.m.
YUL
-
MDW
4h 20m
1 stop
Porter Airlines Logo
11:00 a.m. - 6:45 p.m.
MDW
-
YUL
6h 45m
1 stop
C$ 236Porter Airlines
Fri, 10 Apr - Sun, 12 Apr
Air Canada Logo
1:10 p.m. - 2:55 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
12:50 p.m. - 4:05 p.m.
ORD
-
YUL
2h 15mdirect
C$ 239Air Canada
Thu, 26 Mar - Mon, 30 Mar
Air Canada Logo
6:25 p.m. - 8:10 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
12:50 p.m. - 4:05 p.m.
ORD
-
YUL
2h 15mdirect
C$ 241Air Canada
Wed, 25 Mar - Mon, 30 Mar
Porter Airlines Logo
8:55 a.m. - 11:50 a.m.
YUL
-
MDW
3h 55m
1 stop
Porter Airlines Logo
11:00 a.m. - 4:30 p.m.
MDW
-
YUL
4h 30m
1 stop
C$ 241Porter Airlines
Sat, 25 Apr - Wed, 29 Apr
United Airlines Logo
9:45 a.m. - 11:28 a.m.
YUL
-
ORD
2h 43mdirect
United Airlines Logo
4:25 p.m. - 12:13 a.m.
ORD
-
YUL
6h 48m
1 stop
C$ 253United Airlines
Fri, 1 May - Mon, 4 May
United Airlines Logo
6:00 a.m. - 8:00 a.m.
YUL
-
ORD
3h 00mdirect
United Airlines Logo
4:20 p.m. - 12:13 a.m.
ORD
-
YUL
6h 53m
1 stop
C$ 254United Airlines
Thu, 26 Mar - Mon, 30 Mar
American Airlines Logo
3:45 p.m. - 5:45 p.m.
YUL
-
ORD
3h 00mdirect
American Airlines Logo
6:44 p.m. - 1:45 p.m.
ORD
-
YUL
18h 01m
1 stop
C$ 262American Airlines
Thu, 12 Mar - Mon, 16 Mar
Delta Logo
6:00 a.m. - 12:42 p.m.
YUL
-
MDW
7h 42m
1 stop
Delta Logo
12:51 p.m. - 11:57 p.m.
MDW
-
YUL
10h 06m
1 stop
C$ 298Delta
Sat, 23 May - Wed, 3 Jun
American Airlines Logo
12:30 p.m. - 10:17 p.m.
YUL
-
STL
10h 47m
1 stop
American Airlines Logo
5:21 p.m. - 11:44 a.m.
STL
-
YUL
17h 23m
1 stop
C$ 425American Airlines
Mon, 20 Apr - Sat, 25 Apr
Delta Logo
6:45 p.m. - 11:59 p.m.
YUL
-
STL
6h 14m
1 stop
Delta Logo
6:04 p.m. - 11:13 p.m.
STL
-
YUL
4h 09m
1 stop
C$ 645Delta
Sun, 10 May - Sat, 16 May

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
26 Mar
YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD2:55 p.m.Chicago O'Hare Intl
30 Mar
ORD12:50 p.m.Chicago O'Hare Intl
2h 15m
YUL4:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 239
Air Canada
25 Mar
YUL6:25 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:10 p.m.Chicago O'Hare Intl
30 Mar
ORD12:50 p.m.Chicago O'Hare Intl
2h 15m
YUL4:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 241
Air Canada
8 Mar
YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD2:55 p.m.Chicago O'Hare Intl
15 Mar
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 249

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

Our best United Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight tickets
United Airlines
1 May
YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl
2h 43m
ORD11:28 a.m.Chicago O'Hare Intl
4 May
ORD4:25 p.m.Chicago O'Hare Intl
6h 48m
1 stop
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 253
United Airlines
26 Mar
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD8:00 a.m.Chicago O'Hare Intl
30 Mar
ORD4:20 p.m.Chicago O'Hare Intl
6h 53m
1 stop
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 254
United Airlines
1 May
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
13h 51m
1 stop
ORD7:26 a.m.Chicago O'Hare Intl
4 May
ORD2:25 p.m.Chicago O'Hare Intl
8h 48m
1 stop
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 275

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 96,600 searches. Data last updated 8 February 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

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

6:45 a.m.-10:05 a.m.

1 stop4h 20m

Chicago Midway

Sun 12/4

11:00 a.m.-6:45 p.m.

1 stop6h 45m

C$ 236

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 26/3

1:10 p.m.-2:55 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Mon 30/3

12:50 p.m.-4:05 p.m.

Nonstop2h 15m

C$ 239

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

6:25 p.m.-8:10 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Mon 30/3

12:50 p.m.-4:05 p.m.

Nonstop2h 15m

C$ 241

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 25/4

8:55 a.m.-11:50 a.m.

1 stop3h 55m

Chicago Midway

Wed 29/4

11:00 a.m.-4:30 p.m.

1 stop4h 30m

C$ 241

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

9:45 a.m.-11:28 a.m.

Nonstop2h 43m

Chicago O'Hare Intl

Mon 4/5

4:25 p.m.-12:13 a.m.

1 stop6h 48m

C$ 253

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 26/3

6:00 a.m.-8:00 a.m.

Nonstop3h 00m

Chicago O'Hare Intl

Mon 30/3

4:20 p.m.-12:13 a.m.

1 stop6h 53m

C$ 254

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

3:45 p.m.-5:45 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Mon 16/3

6:44 p.m.-1:45 p.m.

1 stop18h 01m

C$ 262

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

6:00 a.m.-12:42 p.m.

1 stop7h 42m

Chicago Midway

Wed 3/6

12:51 p.m.-11:57 p.m.

1 stop10h 06m

C$ 298

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 20/4

12:30 p.m.-10:17 p.m.

1 stop10h 47m

Lambert-St Louis

Sat 25/4

5:21 p.m.-11:44 a.m.

1 stop17h 23m

C$ 425

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:45 p.m.-11:59 p.m.

1 stop6h 14m

Lambert-St Louis

Sat 16/5

6:04 p.m.-11:13 p.m.

1 stop4h 09m

C$ 645

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?

In general, January is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 317. If you don’t want to visit Illinois in January, then you should wait until May to fly from Montreal Pierre Elliott Trudeau Intl Airport, when ticket prices are also cheap, with an average price of C$ 354.

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

According to our data, Thursday is the cheapest day to fly to Illinois from Montreal Pierre Elliott Trudeau Intl Airport. The lowest ticket price found for a Thursday departure recently was C$ 697. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Sunday, with ticket prices averaging around C$ 1,036.

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 C$ 762. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 1,153 on average. Flights to Illinois from Montreal Pierre Elliott Trudeau Intl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 C$ 481 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 C$ 290 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?

You could potentially save up to 38% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Illinois flight.

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

C$ 319

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 C$ 319. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to Illinois found on momondo in the last 72 hours is C$ 526.
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 travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
American AirlinesPriceFrom C$ 176Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
Porter AirlinesPriceFrom C$ 187Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 249Free CancellationRating
7.1
10,697 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 262Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Montreal to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Flights from Montreal to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Montreal to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Illinois from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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