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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 226

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 Chicago departing on 7/1. 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 Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:25 p.m. - 8:10 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 259Air Canada
Wed, 18 Feb - Sun, 22 Feb
Air Canada Logo
1:10 p.m. - 2:55 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 262Air Canada
Thu, 29 Jan - Sun, 1 Feb
Air Canada Logo
10:10 a.m. - 3:10 p.m.
YUL
-
ORD
6h 00m1 stop
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 276Air Canada
Thu, 29 Jan - Sun, 1 Feb
American Airlines Logo
7:30 a.m. - 12:07 p.m.
YUL
-
ORD
5h 37m1 stop
American Airlines Logo
11:51 a.m. - 3:10 p.m.
ORD
-
YUL
2h 19mdirect
C$ 280American Airlines
Sat, 14 Feb - Tue, 17 Feb
Air Canada Logo
1:10 p.m. - 2:55 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 292Air Canada
Thu, 29 Jan - Sun, 1 Feb
Air Canada Logo
1:10 p.m. - 2:55 p.m.
YUL
-
ORD
2h 45mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 295Air Canada
Thu, 29 Jan - Sun, 1 Feb
Delta Logo
6:00 p.m. - 11:57 p.m.
YUL
-
ORD
6h 57m1 stop
Delta Logo
10:45 a.m. - 6:35 p.m.
ORD
-
YUL
6h 50m1 stop
C$ 297Delta
Fri, 20 Feb - Mon, 23 Feb
Delta Logo
12:52 p.m. - 8:44 p.m.
YUL
-
ORD
8h 52m1 stop
Delta Logo
6:15 a.m. - 1:40 p.m.
ORD
-
YUL
6h 25m1 stop
C$ 298Delta
Sat, 14 Feb - Tue, 17 Feb
Air Canada Logo
11:10 a.m. - 3:10 p.m.
YUL
-
ORD
5h 00m1 stop
Air Canada Logo
12:50 p.m. - 4:01 p.m.
ORD
-
YUL
2h 11mdirect
C$ 301Air Canada
Fri, 13 Feb - Sun, 15 Feb
Air Canada Logo
10:10 a.m. - 3:10 p.m.
YUL
-
ORD
6h 00m1 stop
Air Canada Logo
7:15 a.m. - 10:20 a.m.
ORD
-
YUL
2h 05mdirect
C$ 302Air Canada
Thu, 29 Jan - Sun, 1 Feb

Air Canada flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
Air Canada
18 Feb
YUL6:25 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:10 p.m.Chicago O'Hare Intl
22 Feb
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 259
Find similar
Air Canada
29 Jan
YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD2:55 p.m.Chicago O'Hare Intl
1 Feb
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 262
Find similar
Air Canada
29 Jan
YUL10:10 a.m.Montreal Pierre Elliott Trudeau Intl
6h 00m
1 stop
ORD3:10 p.m.Chicago O'Hare Intl
1 Feb
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 276
Find similar

Delta flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

Our best Delta deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
Delta
20 Feb
YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl
6h 57m
1 stop
ORD11:57 p.m.Chicago O'Hare Intl
23 Feb
ORD10:45 a.m.Chicago O'Hare Intl
6h 50m
1 stop
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 297
Find similar
Delta
14 Feb
YUL12:52 p.m.Montreal Pierre Elliott Trudeau Intl
8h 52m
1 stop
ORD8:44 p.m.Chicago O'Hare Intl
17 Feb
ORD6:15 a.m.Chicago O'Hare Intl
6h 25m
1 stop
YUL1:40 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 298
Find similar
Delta
29 Jan
YUL1:02 p.m.Montreal Pierre Elliott Trudeau Intl
4h 36m
1 stop
ORD4:38 p.m.Chicago O'Hare Intl
1 Feb
ORD6:50 a.m.Chicago O'Hare Intl
4h 14m
1 stop
YUL12:04 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 359
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport 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 11 December 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

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

Nonstop2h 45m

Chicago O'Hare Intl

Sun 22/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 259

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

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

Nonstop2h 45m

Chicago O'Hare Intl

Sun 1/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 262

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

10:10 a.m.-3:10 p.m.

1 stop6h 00m

Chicago O'Hare Intl

Sun 1/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 276

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

7:30 a.m.-12:07 p.m.

1 stop5h 37m

Chicago O'Hare Intl

Tue 17/2

11:51 a.m.-3:10 p.m.

Nonstop2h 19m

C$ 280

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

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

Nonstop2h 45m

Chicago O'Hare Intl

Sun 1/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 292

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

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

Nonstop2h 45m

Chicago O'Hare Intl

Sun 1/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 295

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

6:00 p.m.-11:57 p.m.

1 stop6h 57m

Chicago O'Hare Intl

Mon 23/2

10:45 a.m.-6:35 p.m.

1 stop6h 50m

C$ 297

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

12:52 p.m.-8:44 p.m.

1 stop8h 52m

Chicago O'Hare Intl

Tue 17/2

6:15 a.m.-1:40 p.m.

1 stop6h 25m

C$ 298

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 13/2

11:10 a.m.-3:10 p.m.

1 stop5h 00m

Chicago O'Hare Intl

Sun 15/2

12:50 p.m.-4:01 p.m.

Nonstop2h 11m

C$ 301

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

10:10 a.m.-3:10 p.m.

1 stop6h 00m

Chicago O'Hare Intl

Sun 1/2

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 302

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Chicago from

How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

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 Chicago O'Hare Intl Airport?

In general, September is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 432. The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Montreal Pierre Elliott Trudeau Intl Airport averaging around C$ 440.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Thursday when prices can be found for as low as C$ 709. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport for around C$ 969.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

In the afternoon is the cheapest time of day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 737. Flying to Chicago O'Hare Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 1,063 on average. Flights to Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl flight route?

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

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around C$ 489 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport for as low as C$ 319 on momondo.

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight.

How have Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight prices changed over time?

As of December 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 6% cheaper when compared to flights at the same time last year.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (YUL to ORD) flight deals and tips

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

Best price found

C$ 395

Fastest flight time

2h 35m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in the past 72 hours is C$ 395. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 629.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 35m
Direct flights go from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl by plane?

    A flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl will travel around 1198.8 km. Flights usually cover this in 2h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek 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 Chicago O'Hare Intl Airport?

  • What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom C$ 203Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 257Free CancellationRating
7.1
10,514 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 265Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

  • United Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

    United Airlines operates around 32 flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 500, but momondo users have found United Airlines deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from as low as C$ 265 round-trip. United Airlines has been scored 7.4/10 in 9,095 reviews.

  • American Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

    American Airlines is also a popular choice for this route. American Airlines flight deals for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from as low as C$ 203 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around C$ 370. American Airlines operates 6 flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in an average week. Users have rated it 7.2/10 across 11,048 reviews.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schaumburg
Rosemont
Hoffman Estates
Northbrook
Tinley Park
Munster
Hammond
Harvey
Naperville
Glenview
Great Lakes
Wheeling
Elmhurst
Harvard
Merrillville
Elk Grove Village
Oak Brook
Kenosha
Skokie

Why use momondo?

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

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 Chicago for you.

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

Flights from Montreal to Chicago 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 Chicago?

momondo helps you find the best flight between Montreal and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Montreal and alert you when they change.

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