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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 153

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 29/5. 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
12:50 p.m. - 4:05 p.m.
ORD
-
YUL
2h 15mdirect
C$ 249Air Canada
Wed, 25 Mar - Mon, 30 Mar
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$ 252Air Canada
Thu, 19 Feb - Sat, 21 Feb
United Airlines Logo
4:45 p.m. - 6:45 p.m.
YUL
-
ORD
3h 00mdirect
United Airlines Logo
8:50 a.m. - 3:16 p.m.
ORD
-
YUL
5h 26m
1 stop
C$ 253United Airlines
Thu, 19 Feb - Sat, 21 Feb
Air Canada Logo
8:15 a.m. - 9:53 a.m.
YUL
-
ORD
2h 38mdirect
Air Canada Logo
8:45 a.m. - 12:00 p.m.
ORD
-
YUL
2h 15mdirect
C$ 260Air Canada
Thu, 11 Jun - Sun, 14 Jun
Air Canada Logo
8:15 a.m. - 9:53 a.m.
YUL
-
ORD
2h 38mdirect
Air Canada Logo
8:45 a.m. - 12:00 p.m.
ORD
-
YUL
2h 15mdirect
C$ 262Air Canada
Fri, 12 Jun - Sun, 14 Jun
United Airlines Logo
9:15 a.m. - 2:20 p.m.
YUL
-
ORD
6h 05m
1 stop
United Airlines Logo
8:50 a.m. - 3:16 p.m.
ORD
-
YUL
5h 26m
1 stop
C$ 273United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
9:15 a.m. - 2:20 p.m.
YUL
-
ORD
6h 05m
1 stop
United Airlines Logo
8:50 a.m. - 3:16 p.m.
ORD
-
YUL
5h 26m
1 stop
C$ 275United Airlines
Thu, 19 Feb - Sat, 21 Feb
United Airlines Logo
2:13 p.m. - 11:43 p.m.
YUL
-
ORD
10h 30m
1 stop
United Airlines Logo
10:35 a.m. - 2:00 p.m.
ORD
-
YUL
2h 25mdirect
C$ 282United Airlines
Sat, 21 Feb - Sun, 22 Feb
United Airlines Logo
4:45 p.m. - 6:45 p.m.
YUL
-
ORD
3h 00mdirect
United Airlines Logo
8:50 a.m. - 3:16 p.m.
ORD
-
YUL
5h 26m
1 stop
C$ 283United Airlines
Thu, 19 Feb - Sun, 22 Feb
American Airlines Logo
7:30 a.m. - 1:57 p.m.
YUL
-
ORD
7h 27m
1 stop
American Airlines Logo
6:40 a.m. - 3:22 p.m.
ORD
-
YUL
7h 42m
1 stop
C$ 286American Airlines
Wed, 18 Feb - Sat, 21 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
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$ 249
Air Canada
19 Feb
YUL6:25 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:10 p.m.Chicago O'Hare Intl
21 Feb
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 252
Air Canada
11 Jun
YUL8:15 a.m.Montreal Pierre Elliott Trudeau Intl
2h 38m
ORD9:53 a.m.Chicago O'Hare Intl
14 Jun
ORD8:45 a.m.Chicago O'Hare Intl
2h 15m
YUL12:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 260

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

Our best United Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
United Airlines
19 Feb
YUL4:45 p.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD6:45 p.m.Chicago O'Hare Intl
21 Feb
ORD8:50 a.m.Chicago O'Hare Intl
5h 26m
1 stop
YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 253
United Airlines
18 Feb
YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl
6h 05m
1 stop
ORD2:20 p.m.Chicago O'Hare Intl
22 Feb
ORD8:50 a.m.Chicago O'Hare Intl
5h 26m
1 stop
YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 273
United Airlines
19 Feb
YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl
6h 05m
1 stop
ORD2:20 p.m.Chicago O'Hare Intl
21 Feb
ORD8:50 a.m.Chicago O'Hare Intl
5h 26m
1 stop
YUL3:16 p.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 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 28 January 2026.
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 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$ 249

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

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

Nonstop2h 45m

Chicago O'Hare Intl

Sat 21/2

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

Nonstop2h 05m

C$ 252

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

4:45 p.m.-6:45 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Sat 21/2

8:50 a.m.-3:16 p.m.

1 stop5h 26m

C$ 253

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

8:15 a.m.-9:53 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Sun 14/6

8:45 a.m.-12:00 p.m.

Nonstop2h 15m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

8:15 a.m.-9:53 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Sun 14/6

8:45 a.m.-12:00 p.m.

Nonstop2h 15m

C$ 262

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:15 a.m.-2:20 p.m.

1 stop6h 05m

Chicago O'Hare Intl

Sun 22/2

8:50 a.m.-3:16 p.m.

1 stop5h 26m

C$ 273

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

9:15 a.m.-2:20 p.m.

1 stop6h 05m

Chicago O'Hare Intl

Sat 21/2

8:50 a.m.-3:16 p.m.

1 stop5h 26m

C$ 275

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

2:13 p.m.-11:43 p.m.

1 stop10h 30m

Chicago O'Hare Intl

Sun 22/2

10:35 a.m.-2:00 p.m.

Nonstop2h 25m

C$ 282

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

4:45 p.m.-6:45 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Sun 22/2

8:50 a.m.-3:16 p.m.

1 stop5h 26m

C$ 283

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

7:30 a.m.-1:57 p.m.

1 stop7h 27m

Chicago O'Hare Intl

Sat 21/2

6:40 a.m.-3:22 p.m.

1 stop7h 42m

C$ 286

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, April 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$ 414. The month of September 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$ 428.

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$ 690. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, 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$ 1,033.

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$ 750. 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$ 1,138 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$ 483 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$ 290 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?

No. A direct flight is the cheapest option for a flight between Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport.

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

As of January 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 26% 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$ 305

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$ 305. 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$ 530.
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$ 176Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 251Free CancellationRating
7.1
10,666 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 262Free CancellationRating
7.4
9,209 reviews
Search United Airlines flights
Porter AirlinesPriceFrom C$ 291Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights

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

    Porter Airlines operates around 7 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$ 502, but momondo users have found Porter Airlines deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from as low as C$ 291 round-trip. Porter Airlines has been scored 7.9/10 in 412 reviews.

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

    United Airlines is also a popular choice for this route. United Airlines flight deals for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from as low as C$ 262 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around C$ 499. United Airlines operates 32 flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in an average week. Users have rated it 7.4/10 across 9,205 reviews.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schaumburg
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Northbrook
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Munster
Skokie
Great Lakes
Hammond
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Des Plaines
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Kenosha

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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