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Cheap flights from Montreal to Chicago O'Hare Intl Airport from $124

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 O'Hare Intl Airport departing on 5/13. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Montreal to Chicago.
Air Canada Logo
6:40 pm - 8:12 pmYUL-ORD
2h 32mnonstop
Air Canada Logo
7:19 am - 10:40 amORD-YUL
2h 21mnonstop
$203Air Canada
Find Deal
Fri, May 23 - Mon, May 26
Air Canada Logo
6:40 pm - 8:12 pmYUL-ORD
2h 32mnonstop
Air Canada Logo
8:40 am - 11:55 amORD-YUL
2h 15mnonstop
$204Air Canada
Find Deal
Wed, May 21 - Wed, May 28
American Airlines Logo
12:30 pm - 2:05 pmYUL-ORD
2h 35mnonstop
American Airlines Logo
8:24 am - 11:44 amORD-YUL
2h 20mnonstop
$205American Airlines
Find Deal
Wed, May 21 - Wed, May 28
American Airlines Logo
12:30 pm - 2:05 pmYUL-ORD
2h 35mnonstop
American Airlines Logo
8:24 am - 11:44 amORD-YUL
2h 20mnonstop
$231American Airlines
Find Deal
Thu, May 22 - Mon, May 26
Delta Logo
7:00 am - 2:47 pmYUL-ORD
8h 47m1 stop
Delta Logo
1:45 pm - 11:16 pmORD-YUL
8h 31m1 stop
$238Delta
Find Deal
Mon, Jun 2 - Fri, Jun 6
Delta Logo
6:00 am - 9:22 amYUL-ORD
4h 22m1 stop
Delta Logo
6:00 am - 5:04 pmORD-YUL
10h 04m1 stop
$242Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
 Logo
8:20 am - 9:52 amYUL-ORD
2h 32mnonstop
 Logo
10:00 am - 4:21 pmORD-YUL
5h 21m1 stop
Mon, Jun 2 - Fri, Jun 6
 Logo
6:40 pm - 8:12 pmYUL-ORD
2h 32mnonstop
 Logo
8:25 pm - 1:51 amORD-YUL
4h 26m1 stop
Thu, May 22 - Mon, May 26
United Airlines Logo
6:40 pm - 8:12 pmYUL-ORD
2h 32mnonstop
United Airlines Logo
7:19 am - 10:40 amORD-YUL
2h 21mnonstop
$276United Airlines
Find Deal
Thu, May 22 - Mon, May 26
United Airlines Logo
1:15 pm - 2:55 pmYUL-ORD
2h 40mnonstop
United Airlines Logo
8:00 pm - 8:35 amORD-YUL
11h 35m1 stop
$277United Airlines
Find Deal
Fri, Jun 6 - Fri, Jun 13

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

Our best United Airlines deals on Montreal to Chicago O'Hare Intl Airport flight tickets
United Airlines
May 22
YUL6:40 pmMontreal Pierre Elliott Trudeau Intl
2h 32m
ORD8:12 pmChicago O'Hare Intl
May 26
ORD7:19 amChicago O'Hare Intl
2h 21m
YUL10:40 amMontreal Pierre Elliott Trudeau Intl
United Airlines
Jun 6
YUL1:15 pmMontreal Pierre Elliott Trudeau Intl
2h 40m
ORD2:55 pmChicago O'Hare Intl
Jun 13
ORD8:00 pmChicago O'Hare Intl
11h 35m
1 stop
YUL8:35 amMontreal Pierre Elliott Trudeau Intl
United Airlines
Sep 18
YUL6:40 pmMontreal Pierre Elliott Trudeau Intl
2h 31m
ORD8:11 pmChicago O'Hare Intl
Sep 21
ORD8:50 amChicago O'Hare Intl
5h 10m
1 stop
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl

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
Jun 2
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
8h 47m
1 stop
ORD2:47 pmChicago O'Hare Intl
Jun 6
ORD1:45 pmChicago O'Hare Intl
8h 31m
1 stop
YUL11:16 pmMontreal Pierre Elliott Trudeau Intl
Delta
Sep 5
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
4h 22m
1 stop
ORD9:22 amChicago O'Hare Intl
Sep 8
ORD6:00 amChicago O'Hare Intl
10h 04m
1 stop
YUL5:04 pmMontreal Pierre Elliott Trudeau Intl
Delta
Sep 5
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
4h 22m
1 stop
ORD9:22 amChicago O'Hare Intl
Sep 13
ORD7:10 amChicago O'Hare Intl
8h 54m
1 stop
YUL5:04 pmMontreal 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 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 averaging around $347.

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 $409. 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 $561.

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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $455 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $597. 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 13 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $399 when searching 13 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 $317 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.

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

As of April 2025, prices for Montreal to Chicago O'Hare Intl Airport flights are approximately 8% more expensive 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

$124

Fastest flight time

2h 26m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Montreal in the past 72 hours is $124. The best round-trip flight deal from Montreal to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $203.
The fastest flight from Montreal to Chicago O'Hare Intl Airport takes 2h 26m
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 754.3 mi. By plane, this route typically takes 2h 26m.

  • 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
United AirlinesPriceFrom $112Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
Air CanadaPriceFrom $251Free CancellationRating
7.0
9,192 reviews
Search Air Canada flights
American AirlinesPriceFrom $282Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
WestJetPriceFrom $334Free CancellationRating
7.2
2,815 reviews
Search WestJet flights
  • United Airlines Flights From Montreal to Chicago O'Hare Intl Airport

    United Airlines operates around 38 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 $495, but momondo users have found United Airlines deals from Montreal to Chicago O'Hare Intl Airport from as low as $112 round-trip. United Airlines has been scored 7.4/10 in 8,685 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, 10,000 ratings). American Airlines flies from Montreal to Chicago O'Hare Intl Airport around 5 times per week, with deals starting from $282 round-trip and rising to an average price of around $386.


Traveling to a place near Chicago?

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