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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from $165

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 12/3. 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 Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
2:10 pm - 5:48 pmYUL-ORD
4h 38m1 stop
Air Canada Logo
12:50 pm - 3:57 pmORD-YUL
2h 07mnonstop
$231Air Canada
Find Deal
Tue, Feb 24 - Tue, Mar 3
Air Canada Logo
10:10 am - 3:10 pmYUL-ORD
6h 00m1 stop
Air Canada Logo
3:35 pm - 6:40 pmORD-YUL
2h 05mnonstop
$232Air Canada
Find Deal
Sat, Jan 24 - Wed, Jan 28
Delta Logo
6:00 am - 9:35 amYUL-ORD
4h 35m1 stop
Delta Logo
7:10 am - 5:04 pmORD-YUL
8h 54m1 stop
$233Delta
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Sat, Apr 4 - Wed, Apr 8
Multiple Airlines Logo
4:45 pm - 6:45 pmYUL-ORD
3h 00mnonstop
Multiple Airlines Logo
12:50 pm - 3:57 pmORD-YUL
2h 07mnonstop
$237Multiple Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
2:25 pm - 11:35 amYUL-ORD
22h 10m1 stop
American Airlines Logo
8:09 am - 3:20 pmORD-YUL
6h 11m1 stop
$243American Airlines
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Thu, Feb 5 - Sun, Feb 8
Multiple Airlines Logo
3:11 pm - 11:13 pmYUL-ORD
9h 02m1 stop
Multiple Airlines Logo
7:15 am - 10:20 amORD-YUL
2h 05mnonstop
$252Multiple Airlines
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Tue, Feb 24 - Tue, Mar 3
Delta Logo
6:00 am - 9:35 amYUL-ORD
4h 35m1 stop
Delta Logo
5:50 am - 5:04 pmORD-YUL
10h 14m1 stop
$255Delta
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Sat, Apr 4 - Wed, Apr 8
Porter Airlines Logo
3:45 pm - 5:45 pmYUL-ORD
3h 00mnonstop
Porter Airlines Logo
11:50 am - 3:00 pmORD-YUL
2h 10mnonstop
$288Porter Airlines
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Sun, Mar 15 - Sun, Mar 22
American Airlines Logo
2:25 pm - 7:40 pmYUL-ORD
6h 15m1 stop
American Airlines Logo
8:55 pm - 3:24 pmORD-YUL
17h 29m1 stop
$301American Airlines
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Tue, Feb 24 - Tue, Mar 3
Porter Airlines Logo
3:50 pm - 5:50 pmYUL-ORD
3h 00mnonstop
Porter Airlines Logo
11:49 am - 3:10 pmORD-YUL
2h 21mnonstop
$305Porter Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7

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
Feb 24
YUL2:10 pmMontreal Pierre Elliott Trudeau Intl
4h 38m
1 stop
ORD5:48 pmChicago O'Hare Intl
Mar 3
ORD12:50 pmChicago O'Hare Intl
2h 07m
YUL3:57 pmMontreal Pierre Elliott Trudeau Intl
$231
Find similar
Air Canada
Jan 24
YUL10:10 amMontreal Pierre Elliott Trudeau Intl
6h 00m
1 stop
ORD3:10 pmChicago O'Hare Intl
Jan 28
ORD3:35 pmChicago O'Hare Intl
2h 05m
YUL6:40 pmMontreal Pierre Elliott Trudeau Intl
$232
Find similar
Air Canada
Jan 22
YUL4:45 pmMontreal Pierre Elliott Trudeau Intl
3h 06m
ORD6:51 pmChicago O'Hare Intl
Jan 26
ORD10:35 amChicago O'Hare Intl
2h 25m
YUL2:00 pmMontreal Pierre Elliott Trudeau Intl
$239
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
Apr 4
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
4h 35m
1 stop
ORD9:35 amChicago O'Hare Intl
Apr 8
ORD7:10 amChicago O'Hare Intl
8h 54m
1 stop
YUL5:04 pmMontreal Pierre Elliott Trudeau Intl
$233
Find similar
Delta
Apr 4
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
4h 35m
1 stop
ORD9:35 amChicago O'Hare Intl
Apr 8
ORD5:50 amChicago O'Hare Intl
10h 14m
1 stop
YUL5:04 pmMontreal Pierre Elliott Trudeau Intl
$255
Find similar
Delta
Nov 23
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
5h 24m
1 stop
ORD11:34 amChicago O'Hare Intl
Nov 28
ORD6:45 amChicago O'Hare Intl
4h 15m
1 stop
YUL12:00 pmMontreal Pierre Elliott Trudeau Intl
$302
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 832,500 searches. Data last updated November 3, 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

Tue 2/24

2:10 pm-5:48 pm

1 stop4h 38m

Chicago O'Hare Intl

Tue 3/3

12:50 pm-3:57 pm

Nonstop2h 07m

$231

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 1/24

10:10 am-3:10 pm

1 stop6h 00m

Chicago O'Hare Intl

Wed 1/28

3:35 pm-6:40 pm

Nonstop2h 05m

$232

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

6:00 am-9:35 am

1 stop4h 35m

Chicago O'Hare Intl

Wed 4/8

7:10 am-5:04 pm

1 stop8h 54m

$233

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

4:45 pm-6:45 pm

Nonstop3h 00m

Chicago O'Hare Intl

Tue 3/3

12:50 pm-3:57 pm

Nonstop2h 07m

$237

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

2:25 pm-11:35 am

1 stop22h 10m

Chicago O'Hare Intl

Sun 2/8

8:09 am-3:20 pm

1 stop6h 11m

$243

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

3:11 pm-11:13 pm

1 stop9h 02m

Chicago O'Hare Intl

Tue 3/3

7:15 am-10:20 am

Nonstop2h 05m

$252

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

6:00 am-9:35 am

1 stop4h 35m

Chicago O'Hare Intl

Wed 4/8

5:50 am-5:04 pm

1 stop10h 14m

$255

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sun 3/15

3:45 pm-5:45 pm

Nonstop3h 00m

Chicago O'Hare Intl

Sun 3/22

11:50 am-3:00 pm

Nonstop2h 10m

$288

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

2:25 pm-7:40 pm

1 stop6h 15m

Chicago O'Hare Intl

Tue 3/3

8:55 pm-3:24 pm

1 stop17h 29m

$301

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 12/4

3:50 pm-5:50 pm

Nonstop3h 00m

Chicago O'Hare Intl

Sun 12/7

11:49 am-3:10 pm

Nonstop2h 21m

$305

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 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?

The month of June 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 $326.

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 $446. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Montreal Pierre Elliott Trudeau Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $630.

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

Flying to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $498 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around $537. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $372 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 $231 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 November 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

$239

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 $239. 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 $333.
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?

    Chicago O'Hare Intl is 744.9 mi away from Montreal Pierre Elliott Trudeau Intl. Flights usually cover this in 2h 41m, 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 were last updated today.

  • 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 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 Chicago O'Hare Intl Airport.

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

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable 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
Air CanadaPriceFrom $174Free CancellationRating
7.1
10,394 reviews
Search Air Canada flights
American AirlinesPriceFrom $251Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
United AirlinesPriceFrom $267Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights

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

    United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from $267 round-trip. Over the 35 United Airlines flights for this route in a normal week, average airfare is usually $402 round-trip - but some users have found much cheaper deals with momondo.

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

    Across 11,036 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport about 4 times each week, with ticket deals ranging from $251 to $414. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Tinley Park
Janesville
Aurora
Elgin
Benton Harbor

Why use momondo?

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

Finding the right flight to Chicago from Montreal is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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?

Once all potential Montreal to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Chicago 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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