Cheap flights from Montreal to Chicago from C$ 135

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 6/9. 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.

Find the cheapest flights from Montreal to Chicago

Cheap round-trip flights

Air Canada Logo
8:20 a.m. - 9:51 a.m.YUL-ORD
2h 31mdirect
Air Canada Logo
10:40 a.m. - 1:54 p.m.ORD-YUL
2h 14mdirect
C$ 187Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Air Canada Logo
12:00 p.m. - 5:33 p.m.YUL-ORD
6h 33m1 stop
Air Canada Logo
10:40 a.m. - 1:54 p.m.ORD-YUL
2h 14mdirect
C$ 190Air Canada
Find Deal
Wed, 3 Sep - Sat, 6 Sep
Air Canada Logo
8:20 a.m. - 9:51 a.m.YUL-ORD
2h 31mdirect
Air Canada Logo
10:40 a.m. - 1:54 p.m.ORD-YUL
2h 14mdirect
C$ 197Air Canada
Find Deal
Fri, 19 Sep - Mon, 29 Sep
Air Canada Logo
8:20 a.m. - 9:51 a.m.YUL-ORD
2h 31mdirect
Air Canada Logo
8:25 p.m. - 1:50 a.m.ORD-YUL
4h 25m1 stop
C$ 200Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
American Airlines Logo
7:50 a.m. - 10:49 p.m.YUL-ORD
15h 59m1 stop
American Airlines Logo
8:10 a.m. - 11:36 a.m.ORD-YUL
2h 26mdirect
C$ 243American Airlines
Find Deal
Sat, 16 Aug - Sun, 17 Aug
American Airlines Logo
12:59 p.m. - 5:29 p.m.YUL-ORD
5h 30m1 stop
American Airlines Logo
8:25 a.m. - 11:46 a.m.ORD-YUL
2h 21mdirect
C$ 245American Airlines
Find Deal
Thu, 4 Sep - Sun, 7 Sep
American Airlines Logo
7:50 a.m. - 3:45 p.m.YUL-ORD
8h 55m1 stop
American Airlines Logo
8:10 a.m. - 11:36 a.m.ORD-YUL
2h 26mdirect
C$ 252American Airlines
Find Deal
Thu, 14 Aug - Sun, 17 Aug
Delta Logo
6:00 a.m. - 1:09 p.m.YUL-ORD
8h 09m1 stop
Delta Logo
9:10 a.m. - 5:43 p.m.ORD-YUL
7h 33m1 stop
C$ 283Delta
Find Deal
Thu, 4 Sep - Tue, 9 Sep
Delta Logo
6:00 a.m. - 1:09 p.m.YUL-ORD
8h 09m1 stop
Delta Logo
5:30 p.m. - 11:16 p.m.ORD-YUL
4h 46m1 stop
C$ 295Delta
Find Deal
Wed, 3 Sep - Sat, 6 Sep
Delta Logo
6:00 a.m. - 12:45 p.m.YUL-ORD
7h 45m1 stop
Delta Logo
12:59 p.m. - 9:48 p.m.ORD-YUL
7h 49m1 stop
C$ 306Delta
Find Deal
Tue, 26 Aug - Wed, 3 Sep

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
16 Aug
YUL7:50 a.m.Montreal Pierre Elliott Trudeau Intl
15h 59m
1 stop
ORD10:49 p.m.Chicago O'Hare Intl
17 Aug
ORD8:10 a.m.Chicago O'Hare Intl
2h 26m
YUL11:36 a.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
4 Sep
YUL12:59 p.m.Montreal Pierre Elliott Trudeau Intl
5h 30m
1 stop
ORD5:29 p.m.Chicago O'Hare Intl
7 Sep
ORD8:25 a.m.Chicago O'Hare Intl
2h 21m
YUL11:46 a.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
14 Aug
YUL7:50 a.m.Montreal Pierre Elliott Trudeau Intl
8h 55m
1 stop
ORD3:45 p.m.Chicago O'Hare Intl
17 Aug
ORD8:10 a.m.Chicago O'Hare Intl
2h 26m
YUL11:36 a.m.Montreal Pierre Elliott Trudeau Intl

Air Canada flights from Montreal to Chicago O'Hare Intl Airport

Our best Air Canada deals on Montreal to Chicago O'Hare Intl Airport flight tickets
Air Canada
4 Sep
YUL8:20 a.m.Montreal Pierre Elliott Trudeau Intl
2h 31m
ORD9:51 a.m.Chicago O'Hare Intl
7 Sep
ORD10:40 a.m.Chicago O'Hare Intl
2h 14m
YUL1:54 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
3 Sep
YUL12:00 p.m.Montreal Pierre Elliott Trudeau Intl
6h 33m
1 stop
ORD5:33 p.m.Chicago O'Hare Intl
6 Sep
ORD10:40 a.m.Chicago O'Hare Intl
2h 14m
YUL1:54 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
19 Sep
YUL8:20 a.m.Montreal Pierre Elliott Trudeau Intl
2h 31m
ORD9:51 a.m.Chicago O'Hare Intl
29 Sep
ORD10:40 a.m.Chicago O'Hare Intl
2h 14m
YUL1:54 p.m.Montreal Pierre Elliott Trudeau Intl

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?

In general, May is the cheapest month to fly from Montreal 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$ 394. The month of June is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Montreal averaging around C$ 423.

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 C$ 743. 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 to Chicago O'Hare Intl Airport for around C$ 1,015.

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 to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 791. 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$ 915 on average. Flights to Chicago O'Hare Intl Airport from Montreal at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 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 for as low as C$ 287 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 July 2025, prices for Montreal to Chicago O'Hare Intl Airport flights are approximately 28% 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

C$ 135

Fastest flight time

2h 31m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Montreal in the past 72 hours is C$ 135. The best round-trip flight deal from Montreal to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 187.
The fastest flight from Montreal to Chicago O'Hare Intl Airport takes 2h 31m
Direct flights go from Montreal to Chicago O'Hare Intl Airport every day.

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

    The straight-line distance from Montreal to Chicago O'Hare Intl is 1213.9 km. Typically, this will take 2h 31m by plane in normal conditions.

  • 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 are updated daily.

  • 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 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 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 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
American AirlinesPriceFrom C$ 265Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 302Free CancellationRating
7.1
9,692 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 344Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
WestJetPriceFrom C$ 448Free CancellationRating
7.2
2,924 reviews
Search WestJet flights
  • United Airlines Flights From Montreal to Chicago O'Hare Intl Airport

    The lowest priced United Airlines flight from Montreal to Chicago O'Hare Intl Airport from the last 72 hours was C$ 252. Generally, United Airlines has 41 flights on this route every week with an average price of C$ 351. United Airlines is rated 7.4/10 by our users.

  • American Airlines Flights From Montreal 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 to Chicago O'Hare Intl Airport about 11 times each week, with ticket deals ranging from C$ 193 to C$ 363. Price data is based on momondo searches in the last 72 hours.


Travelling to a place near Chicago?

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

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 recognizable 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?

Yes. All flights to Chicago from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

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.


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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 15/7
Tue 22/7

Find better results for your trip to Chicago