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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from $120

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 10/21. 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
8:20 am - 9:51 amYUL-ORD
2h 31mnonstop
Air Canada Logo
12:50 pm - 3:57 pmORD-YUL
2h 07mnonstop
$165Air Canada
Find Deal
Tue, Sep 30 - Thu, Nov 27
Air Canada Logo
8:20 am - 9:51 amYUL-ORD
2h 31mnonstop
Air Canada Logo
8:40 am - 11:54 amORD-YUL
2h 14mnonstop
$166Air Canada
Find Deal
Thu, Oct 2 - Mon, Oct 6
Air Canada Logo
6:40 pm - 8:22 pmYUL-ORD
2h 42mnonstop
Air Canada Logo
8:40 am - 11:54 amORD-YUL
2h 14mnonstop
$167Air Canada
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
5:15 pm - 6:50 pmYUL-ORD
2h 35mnonstop
American Airlines Logo
8:25 am - 11:46 amORD-YUL
2h 21mnonstop
$173American Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
Air Canada Logo
8:20 am - 9:51 amYUL-ORD
2h 31mnonstop
Air Canada Logo
8:40 am - 11:54 amORD-YUL
2h 14mnonstop
$174Air Canada
Find Deal
Wed, Oct 8 - Wed, Oct 15
American Airlines Logo
5:24 pm - 6:59 pmYUL-ORD
2h 35mnonstop
American Airlines Logo
6:45 am - 10:55 pmORD-YUL
15h 10m1 stop
$204American Airlines
Find Deal
Mon, Oct 6 - Sat, Oct 18
Delta Logo
7:00 am - 4:31 pmYUL-ORD
10h 31m1 stop
Delta Logo
6:45 am - 12:00 pmORD-YUL
4h 15m1 stop
$205Delta
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Sat, Sep 27 - Fri, Nov 28
Delta Logo
12:47 pm - 9:25 pmYUL-ORD
9h 38m1 stop
Delta Logo
7:10 am - 3:49 pmORD-YUL
7h 39m1 stop
$215Delta
Find Deal
Fri, Oct 3 - Sun, Oct 12
Logo
6:15 am - 8:01 amYUL-ORD
2h 46mnonstop
Logo
7:15 am - 10:20 amORD-YUL
2h 05mnonstop
$230
Find Deal
Sun, Sep 28 - Sun, Nov 30
Logo
6:00 am - 8:00 amYUL-ORD
3h 00mnonstop
Logo
12:50 pm - 3:57 pmORD-YUL
2h 07mnonstop
$257
Find Deal
Wed, Oct 29 - Mon, Nov 10

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
Sep 30
YUL8:20 amMontreal Pierre Elliott Trudeau Intl
2h 31m
ORD9:51 amChicago O'Hare Intl
Nov 27
ORD12:50 pmChicago O'Hare Intl
2h 07m
YUL3:57 pmMontreal Pierre Elliott Trudeau Intl
$165
Find similar
Air Canada
Oct 2
YUL8:20 amMontreal Pierre Elliott Trudeau Intl
2h 31m
ORD9:51 amChicago O'Hare Intl
Oct 6
ORD8:40 amChicago O'Hare Intl
2h 14m
YUL11:54 amMontreal Pierre Elliott Trudeau Intl
$166
Find similar
Air Canada
Oct 2
YUL6:40 pmMontreal Pierre Elliott Trudeau Intl
2h 42m
ORD8:22 pmChicago O'Hare Intl
Oct 6
ORD8:40 amChicago O'Hare Intl
2h 14m
YUL11:54 amMontreal Pierre Elliott Trudeau Intl
$167
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
Sep 27
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
10h 31m
1 stop
ORD4:31 pmChicago O'Hare Intl
Nov 28
ORD6:45 amChicago O'Hare Intl
4h 15m
1 stop
YUL12:00 pmMontreal Pierre Elliott Trudeau Intl
$205
Find similar
Delta
Oct 3
YUL12:47 pmMontreal Pierre Elliott Trudeau Intl
9h 38m
1 stop
ORD9:25 pmChicago O'Hare Intl
Oct 12
ORD7:10 amChicago O'Hare Intl
7h 39m
1 stop
YUL3:49 pmMontreal Pierre Elliott Trudeau Intl
$215
Find similar
Delta
Oct 25
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
7h 45m
1 stop
ORD12:45 pmChicago O'Hare Intl
Oct 31
ORD1:25 pmChicago O'Hare Intl
8h 49m
1 stop
YUL11:14 pmMontreal Pierre Elliott Trudeau Intl
$231
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 August 24, 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 9/30

8:20 am-9:51 am

Nonstop2h 31m

Chicago O'Hare Intl

Thu 11/27

12:50 pm-3:57 pm

Nonstop2h 07m

$165

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 10/2

8:20 am-9:51 am

Nonstop2h 31m

Chicago O'Hare Intl

Mon 10/6

8:40 am-11:54 am

Nonstop2h 14m

$166

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 10/2

6:40 pm-8:22 pm

Nonstop2h 42m

Chicago O'Hare Intl

Mon 10/6

8:40 am-11:54 am

Nonstop2h 14m

$167

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 10/3

5:15 pm-6:50 pm

Nonstop2h 35m

Chicago O'Hare Intl

Sun 10/5

8:25 am-11:46 am

Nonstop2h 21m

$173

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 10/8

8:20 am-9:51 am

Nonstop2h 31m

Chicago O'Hare Intl

Wed 10/15

8:40 am-11:54 am

Nonstop2h 14m

$174

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 10/6

5:24 pm-6:59 pm

Nonstop2h 35m

Chicago O'Hare Intl

Sat 10/18

6:45 am-10:55 pm

1 stop15h 10m

$204

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

7:00 am-4:31 pm

1 stop10h 31m

Chicago O'Hare Intl

Fri 11/28

6:45 am-12:00 pm

1 stop4h 15m

$205

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 10/3

12:47 pm-9:25 pm

1 stop9h 38m

Chicago O'Hare Intl

Sun 10/12

7:10 am-3:49 pm

1 stop7h 39m

$215

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sun 9/28

6:15 am-8:01 am

Nonstop2h 46m

Chicago O'Hare Intl

Sun 11/30

7:15 am-10:20 am

Nonstop2h 05m

$230

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 10/29

6:00 am-8:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Mon 11/10

12:50 pm-3:57 pm

Nonstop2h 07m

$257

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 April 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 $357.

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 $454. 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 $615.

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 $493 when looking at flights departing at noon. Try not to purchase tickets in the afternoon because they tend to be around $529. 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 $393 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 August 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 18% 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

$265

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 $265. 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 $369.
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
8,937 reviews
Search United Airlines flights
Air CanadaPriceFrom $174Free 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 12 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
Rockford
South Haven
Schaumburg
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Tinley Park
Orland 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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