Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 213

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 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Cheap round-trip flights

Air Canada Logo
6:15 p.m. - 8:00 p.m.YUL-ORD
2h 45mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.ORD-YUL
2h 05mdirect
C$ 334Air Canada
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
9:10 a.m. - 1:01 p.m.YUL-ORD
4h 51m1 stop
Air Canada Logo
12:50 p.m. - 3:57 p.m.ORD-YUL
2h 07mdirect
C$ 345Air Canada
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
1:10 p.m. - 7:30 p.m.YUL-ORD
7h 20m1 stop
Air Canada Logo
12:50 p.m. - 3:57 p.m.ORD-YUL
2h 07mdirect
C$ 346Air Canada
Find Deal
Mon, 27 Oct - Mon, 3 Nov
United Airlines Logo
9:45 a.m. - 11:23 a.m.YUL-ORD
2h 38mdirect
United Airlines Logo
7:11 a.m. - 10:40 a.m.ORD-YUL
2h 29mdirect
C$ 360United Airlines
Find Deal
Sat, 4 Oct - Tue, 7 Oct
United Airlines Logo
9:45 a.m. - 11:23 a.m.YUL-ORD
2h 38mdirect
United Airlines Logo
2:08 p.m. - 5:26 p.m.ORD-YUL
2h 18mdirect
C$ 363United Airlines
Find Deal
Sat, 4 Oct - Sun, 5 Oct
Lufthansa Logo
9:45 a.m. - 11:23 a.m.YUL-ORD
2h 38mdirect
Lufthansa Logo
7:11 a.m. - 10:40 a.m.ORD-YUL
2h 29mdirect
C$ 378Lufthansa
Find Deal
Fri, 3 Oct - Sun, 5 Oct
Logo
9:15 a.m. - 3:04 p.m.YUL-ORD
6h 49m1 stop
Logo
7:11 a.m. - 10:40 a.m.ORD-YUL
2h 29mdirect
C$ 396
Find Deal
Fri, 3 Oct - Sun, 5 Oct
Logo
9:45 a.m. - 11:23 a.m.YUL-ORD
2h 38mdirect
Logo
8:25 p.m. - 1:50 a.m.ORD-YUL
4h 25m1 stop
C$ 403
Find Deal
Fri, 3 Oct - Sun, 5 Oct
American Airlines Logo
2:29 p.m. - 11:37 p.m.YUL-ORD
10h 08m1 stop
American Airlines Logo
6:46 a.m. - 1:46 p.m.ORD-YUL
6h 00m1 stop
C$ 412American Airlines
Find Deal
Fri, 7 Nov - Tue, 11 Nov
American Airlines Logo
3:52 p.m. - 5:52 p.m.YUL-ORD
3h 00mdirect
American Airlines Logo
8:20 a.m. - 10:39 p.m.ORD-YUL
13h 19m1 stop
C$ 430American Airlines
Find Deal
Sun, 2 Nov - Wed, 5 Nov

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
29 Oct
YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:00 p.m.Chicago O'Hare Intl
5 Nov
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 334
Find similar
Air Canada
29 Oct
YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl
4h 51m
1 stop
ORD1:01 p.m.Chicago O'Hare Intl
5 Nov
ORD12:50 p.m.Chicago O'Hare Intl
2h 07m
YUL3:57 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 345
Find similar
Air Canada
27 Oct
YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl
7h 20m
1 stop
ORD7:30 p.m.Chicago O'Hare Intl
3 Nov
ORD12:50 p.m.Chicago O'Hare Intl
2h 07m
YUL3:57 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 346
Find similar

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
4 Oct
YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl
2h 38m
ORD11:23 a.m.Chicago O'Hare Intl
7 Oct
ORD7:11 a.m.Chicago O'Hare Intl
2h 29m
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 360
Find similar
United Airlines
4 Oct
YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl
2h 38m
ORD11:23 a.m.Chicago O'Hare Intl
5 Oct
ORD2:08 p.m.Chicago O'Hare Intl
2h 18m
YUL5:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 363
Find similar
United Airlines
3 Oct
YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl
2h 38m
ORD11:23 a.m.Chicago O'Hare Intl
5 Oct
ORD7:11 a.m.Chicago O'Hare Intl
2h 29m
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 367
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 14 September 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 29/10

6:15 p.m.-8:00 p.m.

Nonstop2h 45m

Chicago O'Hare Intl

Wed 5/11

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

Nonstop2h 05m

C$ 334

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

9:10 a.m.-1:01 p.m.

1 stop4h 51m

Chicago O'Hare Intl

Wed 5/11

12:50 p.m.-3:57 p.m.

Nonstop2h 07m

C$ 345

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 27/10

1:10 p.m.-7:30 p.m.

1 stop7h 20m

Chicago O'Hare Intl

Mon 3/11

12:50 p.m.-3:57 p.m.

Nonstop2h 07m

C$ 346

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

9:45 a.m.-11:23 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Tue 7/10

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 360

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

9:45 a.m.-11:23 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Sun 5/10

2:08 p.m.-5:26 p.m.

Nonstop2h 18m

C$ 363

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 3/10

9:45 a.m.-11:23 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Sun 5/10

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 378

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 3/10

9:15 a.m.-3:04 p.m.

1 stop6h 49m

Chicago O'Hare Intl

Sun 5/10

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 396

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 3/10

9:45 a.m.-11:23 a.m.

Nonstop2h 38m

Chicago O'Hare Intl

Sun 5/10

8:25 p.m.-1:50 a.m.

1 stop4h 25m

C$ 403

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

2:29 p.m.-11:37 p.m.

1 stop10h 08m

Chicago O'Hare Intl

Tue 11/11

6:46 a.m.-1:46 p.m.

1 stop6h 00m

C$ 412

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sun 2/11

3:52 p.m.-5:52 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Wed 5/11

8:20 a.m.-10:39 p.m.

1 stop13h 19m

C$ 430

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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, June 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$ 451. The month of August 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$ 465.

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 Friday when prices can be found for as low as C$ 755. 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$ 999.

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$ 775. 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$ 1,043 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$ 529 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$ 291 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 12% 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 September 2025, 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$ 460

Fastest flight time

2h 28m

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$ 460. 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$ 517.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 28m
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 28m, 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$ 178Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 261Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 357Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights
WestJetPriceFrom C$ 453Free CancellationRating
7.2
3,091 reviews
Search WestJet flights

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

    United Airlines operates around 41 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$ 354, 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$ 258 round-trip. United Airlines has been scored 7.4/10 in 8,931 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$ 128 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around C$ 299. American Airlines operates 14 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 10,000 reviews.

Travelling to a place near Chicago?

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

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.

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 14/10
Tue 21/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago