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Cheap flights from Montreal to Chicago from $116

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 to Chicago departing on 6/3. 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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0 bags

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Find the cheapest flights from Montreal to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:25 am - 11:18 am
YUL
-
ORD
2h 53mnonstop
Air Canada Logo
8:40 am - 11:51 am
ORD
-
YUL
2h 11mnonstop
$177Air Canada
Thu, Mar 26 - Mon, Mar 30
Air Canada Logo
1:10 pm - 2:55 pm
YUL
-
ORD
2h 45mnonstop
Air Canada Logo
8:40 am - 11:51 am
ORD
-
YUL
2h 11mnonstop
$178Air Canada
Thu, Mar 26 - Mon, Mar 30
Air Canada Logo
6:30 pm - 8:05 pm
YUL
-
ORD
2h 35mnonstop
Air Canada Logo
12:50 pm - 4:05 pm
ORD
-
YUL
2h 15mnonstop
$184Air Canada
Thu, Apr 9 - Mon, Apr 13
Air Canada Logo
9:25 am - 11:18 am
YUL
-
ORD
2h 53mnonstop
Air Canada Logo
3:35 pm - 6:55 pm
ORD
-
YUL
2h 20mnonstop
$185Air Canada
Sat, Mar 21 - Mon, Mar 30
United Airlines Logo
4:45 pm - 6:45 pm
YUL
-
ORD
3h 00mnonstop
United Airlines Logo
7:00 am - 3:16 pm
ORD
-
YUL
7h 16m
1 stop
$194United Airlines
Tue, Mar 17 - Wed, Mar 18
Lufthansa Logo
9:45 am - 11:37 am
YUL
-
ORD
2h 52mnonstop
Lufthansa Logo
7:13 am - 10:40 am
ORD
-
YUL
2h 27mnonstop
$198Lufthansa
Sat, Apr 4 - Mon, Apr 20
United Airlines Logo
11:23 am - 4:04 pm
YUL
-
ORD
5h 41m
1 stop
United Airlines Logo
6:01 pm - 9:26 pm
ORD
-
YUL
2h 25mnonstop
$200United Airlines
Fri, Apr 10 - Sun, Apr 12
Air Canada Logo
6:00 am - 10:43 am
YUL
-
ORD
5h 43m
1 stop
Air Canada Logo
3:45 pm - 6:55 pm
ORD
-
YUL
2h 10mnonstop
$202Air Canada
Wed, Apr 8 - Wed, Apr 15
Air Canada Logo
6:35 pm - 11:43 pm
YUL
-
ORD
6h 08m
1 stop
Air Canada Logo
12:50 pm - 4:05 pm
ORD
-
YUL
2h 15mnonstop
$203Air Canada
Sun, Apr 12 - Sun, Apr 19
Lufthansa Logo
9:45 am - 11:37 am
YUL
-
ORD
2h 52mnonstop
Lufthansa Logo
3:36 pm - 10:06 pm
ORD
-
YUL
5h 30m
1 stop
$208Lufthansa
Sat, Apr 4 - Mon, Apr 20

American Airlines flights from Montreal to Chicago O'Hare Intl Airport

Our best American Airlines deals on Montreal to Chicago O'Hare Intl Airport flight tickets
American Airlines
Apr 10
YUL4:16 pmMontreal Pierre Elliott Trudeau Intl
16h 23m
1 stop
ORD7:39 amChicago O'Hare Intl
Apr 19
ORD5:00 amChicago O'Hare Intl
6h 18m
1 stop
YUL12:18 pmMontreal Pierre Elliott Trudeau Intl
$209
American Airlines
Apr 24
YUL7:45 amMontreal Pierre Elliott Trudeau Intl
14h 50m
1 stop
ORD9:35 pmChicago O'Hare Intl
Apr 26
ORD8:18 amChicago O'Hare Intl
2h 26m
YUL11:44 amMontreal Pierre Elliott Trudeau Intl
$224
American Airlines
May 20
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
2h 40m
ORD2:10 pmChicago O'Hare Intl
May 25
ORD1:24 pmChicago O'Hare Intl
2h 27m
YUL4:51 pmMontreal Pierre Elliott Trudeau Intl
$229

Delta flights from Montreal to Chicago O'Hare Intl Airport

Our best Delta deals on Montreal to Chicago O'Hare Intl Airport flight tickets
Delta
Mar 20
YUL12:50 pmMontreal Pierre Elliott Trudeau Intl
4h 53m
1 stop
ORD4:43 pmChicago O'Hare Intl
Mar 27
ORD1:57 pmChicago O'Hare Intl
8h 16m
1 stop
YUL11:13 pmMontreal Pierre Elliott Trudeau Intl
$275
Delta
Mar 8
YUL6:45 pmMontreal Pierre Elliott Trudeau Intl
6h 09m
1 stop
ORD11:54 pmChicago O'Hare Intl
Mar 11
ORD1:57 pmChicago O'Hare Intl
8h 16m
1 stop
YUL11:13 pmMontreal Pierre Elliott Trudeau Intl
$460

momondo Fare Finder

 
Customize your flight search to find flights from Montreal 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 February 23, 2026.
Use the filters below to find and compare flights from Montreal 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

Thu 3/26

9:25 am-11:18 am

Nonstop2h 53m

Chicago O'Hare Intl

Mon 3/30

8:40 am-11:51 am

Nonstop2h 11m

$177

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 3/26

1:10 pm-2:55 pm

Nonstop2h 45m

Chicago O'Hare Intl

Mon 3/30

8:40 am-11:51 am

Nonstop2h 11m

$178

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

6:30 pm-8:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

Mon 4/13

12:50 pm-4:05 pm

Nonstop2h 15m

$184

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 3/21

9:25 am-11:18 am

Nonstop2h 53m

Chicago O'Hare Intl

Mon 3/30

3:35 pm-6:55 pm

Nonstop2h 20m

$185

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

4:45 pm-6:45 pm

Nonstop3h 00m

Chicago O'Hare Intl

Wed 3/18

7:00 am-3:16 pm

1 stop7h 16m

$194

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

9:45 am-11:37 am

Nonstop2h 52m

Chicago O'Hare Intl

Mon 4/20

7:13 am-10:40 am

Nonstop2h 27m

$198

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

11:23 am-4:04 pm

1 stop5h 41m

Chicago O'Hare Intl

Sun 4/12

6:01 pm-9:26 pm

Nonstop2h 25m

$200

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/8

6:00 am-10:43 am

1 stop5h 43m

Chicago O'Hare Intl

Wed 4/15

3:45 pm-6:55 pm

Nonstop2h 10m

$202

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sun 4/12

6:35 pm-11:43 pm

1 stop6h 08m

Chicago O'Hare Intl

Sun 4/19

12:50 pm-4:05 pm

Nonstop2h 15m

$203

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

9:45 am-11:37 am

Nonstop2h 52m

Chicago O'Hare Intl

Mon 4/20

3:36 pm-10:06 pm

1 stop5h 30m

$208

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 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 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 averaging around $278.

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 $432. 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 because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $672.

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 in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $509 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $524. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Montreal to Chicago O'Hare Intl flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl for the best Montreal - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $357 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 for as low as $212 on momondo.

What cabin class options are available on Montreal to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Montreal 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 to Chicago O'Hare Intl Airport flights?

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

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

As of February 2026, prices for Montreal to Chicago O'Hare Intl Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

When to book flights from Montreal to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal 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 to Chicago O'Hare Intl Airport (YMQ to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Chicago O'Hare Intl Airport

Best Price Found

$189

Fastest flight time

2h 29m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Montreal in the past 72 hours is $189. The best round-trip flight deal from Montreal to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $387.
The fastest flight from Montreal to Chicago O'Hare Intl Airport takes 2h 29m
Direct flights go from Montreal to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Montreal to Chicago O'Hare Intl by plane?

    The straight-line distance from Montreal to Chicago O'Hare Intl is 754.3 mi. By plane, this route typically takes 2h 29m.

  • When did momondo last update prices for flights from Montreal to Chicago O'Hare Intl Airport?

    Prices for flights from Montreal to Chicago O'Hare Intl Airport were last updated today.

  • How many operators does momondo search for flights from Montreal to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Montreal 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 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 to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Montreal to Chicago O'Hare Intl Airport?

Best airlines flying from Montreal to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Montreal to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $156Free CancellationRating
7.1
10,739 reviews
Search Air Canada flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,339 reviews
Search American Airlines flights
United AirlinesPriceFrom $267Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights

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

    United Airlines operates around 32 flights from Montreal to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been $389, but momondo users have found United Airlines deals from Montreal to Chicago O'Hare Intl Airport from as low as $267 round-trip. United Airlines has been scored 7.4/10 in 9,342 reviews.

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

    Another popular option for Montreal to Chicago O'Hare Intl Airport flights is American Airlines (7.2/10, 11,339 ratings). American Airlines flies from Montreal to Chicago O'Hare Intl Airport around 7 times per week, with deals starting from $189 round-trip and rising to an average price of around $399.

Traveling to a place near Chicago?

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

Why use momondo?

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

It is quick and easy to find Montreal to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Montreal to Chicago with flexible booking policies on momondo?

All flight searches from Montreal to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montreal to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Montreal.

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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