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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from $154

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 10/23. 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

Air Canada Logo
6:15 pm - 8:00 pmYUL-ORD
2h 45mnonstop
Air Canada Logo
7:15 am - 10:20 amORD-YUL
2h 05mnonstop
$241Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
9:10 am - 1:01 pmYUL-ORD
4h 51m1 stop
Air Canada Logo
12:50 pm - 3:57 pmORD-YUL
2h 07mnonstop
$249Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
9:45 am - 11:23 amYUL-ORD
2h 38mnonstop
United Airlines Logo
7:11 am - 10:40 amORD-YUL
2h 29mnonstop
$260United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
9:45 am - 11:23 amYUL-ORD
2h 38mnonstop
United Airlines Logo
2:08 pm - 5:26 pmORD-YUL
2h 18mnonstop
$262United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5
American Airlines Logo
3:52 pm - 5:52 pmYUL-ORD
3h 00mnonstop
American Airlines Logo
6:35 pm - 1:46 pmORD-YUL
18h 11m1 stop
$294American Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
Logo
9:15 am - 2:34 pmYUL-ORD
6h 19m1 stop
Logo
8:00 am - 3:23 pmORD-YUL
6h 23m1 stop
$296
Find Deal
Thu, Oct 23 - Sun, Oct 26
American Airlines Logo
2:29 pm - 11:37 pmYUL-ORD
10h 08m1 stop
American Airlines Logo
6:46 am - 1:46 pmORD-YUL
6h 00m1 stop
$298American Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Logo
6:35 pm - 5:13 pmYUL-ORD
23h 38m1 stop
Logo
11:13 am - 10:15 pmORD-YUL
10h 02m2 stops
$303
Find Deal
Mon, Oct 6 - Wed, Oct 8
Delta Logo
7:00 am - 4:41 pmYUL-ORD
10h 41m1 stop
Delta Logo
4:09 pm - 11:48 pmORD-YUL
6h 39m1 stop
$306Delta
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Thu, Oct 9 - Sat, Oct 11
Delta Logo
9:28 am - 6:23 pmYUL-ORD
9h 55m1 stop
Delta Logo
7:10 am - 12:02 pmORD-YUL
3h 52m1 stop
$310Delta
Find Deal
Tue, Oct 14 - Sat, Oct 25

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
Oct 29
YUL6:15 pmMontreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:00 pmChicago O'Hare Intl
Nov 5
ORD7:15 amChicago O'Hare Intl
2h 05m
YUL10:20 amMontreal Pierre Elliott Trudeau Intl
$241
Find similar
Air Canada
Oct 29
YUL9:10 amMontreal Pierre Elliott Trudeau Intl
4h 51m
1 stop
ORD1:01 pmChicago O'Hare Intl
Nov 5
ORD12:50 pmChicago O'Hare Intl
2h 07m
YUL3:57 pmMontreal Pierre Elliott Trudeau Intl
$249
Find similar
Air Canada
Oct 29
YUL6:15 pmMontreal Pierre Elliott Trudeau Intl
2h 45m
ORD8:00 pmChicago O'Hare Intl
Nov 5
ORD2:00 pmChicago O'Hare Intl
5h 44m
2 stops
YUL8:44 pmMontreal Pierre Elliott Trudeau Intl
$250
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
Oct 4
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
2h 38m
ORD11:23 amChicago O'Hare Intl
Oct 7
ORD7:11 amChicago O'Hare Intl
2h 29m
YUL10:40 amMontreal Pierre Elliott Trudeau Intl
$260
Find similar
United Airlines
Oct 4
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
2h 38m
ORD11:23 amChicago O'Hare Intl
Oct 5
ORD2:08 pmChicago O'Hare Intl
2h 18m
YUL5:26 pmMontreal Pierre Elliott Trudeau Intl
$262
Find similar
United Airlines
Oct 18
YUL6:15 amMontreal Pierre Elliott Trudeau Intl
2h 46m
ORD8:01 amChicago O'Hare Intl
Oct 22
ORD7:11 amChicago O'Hare Intl
2h 29m
YUL10:40 amMontreal Pierre Elliott Trudeau Intl
$266
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 September 15, 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 10/29

6:15 pm-8:00 pm

Nonstop2h 45m

Chicago O'Hare Intl

Wed 11/5

7:15 am-10:20 am

Nonstop2h 05m

$241

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 10/29

9:10 am-1:01 pm

1 stop4h 51m

Chicago O'Hare Intl

Wed 11/5

12:50 pm-3:57 pm

Nonstop2h 07m

$249

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

9:45 am-11:23 am

Nonstop2h 38m

Chicago O'Hare Intl

Tue 10/7

7:11 am-10:40 am

Nonstop2h 29m

$260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

9:45 am-11:23 am

Nonstop2h 38m

Chicago O'Hare Intl

Sun 10/5

2:08 pm-5:26 pm

Nonstop2h 18m

$262

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 11/7

3:52 pm-5:52 pm

Nonstop3h 00m

Chicago O'Hare Intl

Mon 11/10

6:35 pm-1:46 pm

1 stop18h 11m

$294

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 10/23

9:15 am-2:34 pm

1 stop6h 19m

Chicago O'Hare Intl

Sun 10/26

8:00 am-3:23 pm

1 stop6h 23m

$296

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 11/7

2:29 pm-11:37 pm

1 stop10h 08m

Chicago O'Hare Intl

Tue 11/11

6:46 am-1:46 pm

1 stop6h 00m

$298

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 10/6

6:35 pm-5:13 pm

1 stop23h 38m

Chicago O'Hare Intl

Wed 10/8

11:13 am-10:15 pm

2 stops10h 02m

$303

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

7:00 am-4:41 pm

1 stop10h 41m

Chicago O'Hare Intl

Sat 10/11

4:09 pm-11:48 pm

1 stop6h 39m

$306

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 10/14

9:28 am-6:23 pm

1 stop9h 55m

Chicago O'Hare Intl

Sat 10/25

7:10 am-12:02 pm

1 stop3h 52m

$310

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 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?

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 $336.

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 Saturday when prices can be found for as low as $472. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday 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 $618.

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 $494 when looking at flights departing at noon. Try not to purchase tickets in the afternoon because they tend to be around $548. 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 $382 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 $210 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.

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

$276

Fastest flight time

2h 31m

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 $276. 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 $391.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 31m
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 31m, 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
United AirlinesPriceFrom $112Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
Air CanadaPriceFrom $178Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
10,000 reviews
Search American 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 $112 round-trip. Over the 41 United Airlines flights for this route in a normal week, average airfare is usually $487 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 10,000 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 14 times each week, with ticket deals ranging from $262 to $407. 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
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Schaumburg
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
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Racine
Hammond
Orland Park
Tinley Park
Elgin
Aurora
Janesville
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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