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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 143

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 27/8. 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
6:40 p.m. - 8:22 p.m.YUL-ORD
2h 42mdirect
Air Canada Logo
10:40 a.m. - 1:54 p.m.ORD-YUL
2h 14mdirect
C$ 210Air Canada
Find Deal
Sat, 11 Oct - Sun, 19 Oct
Air Canada Logo
10:15 a.m. - 3:04 p.m.YUL-ORD
5h 49m1 stop
Air Canada Logo
8:40 a.m. - 11:54 a.m.ORD-YUL
2h 14mdirect
C$ 226Air Canada
Find Deal
Sat, 11 Oct - Sun, 19 Oct
American Airlines Logo
5:29 p.m. - 7:05 p.m.YUL-ORD
2h 36mdirect
American Airlines Logo
5:20 a.m. - 1:39 p.m.ORD-YUL
7h 19m1 stop
C$ 239American Airlines
Find Deal
Sat, 30 Aug - Mon, 1 Sep
American Airlines Logo
7:29 a.m. - 7:08 p.m.YUL-ORD
12h 39m1 stop
American Airlines Logo
9:11 p.m. - 12:24 p.m.ORD-YUL
14h 13m1 stop
C$ 260American Airlines
Find Deal
Sat, 30 Aug - Tue, 2 Sep
Delta Logo
6:00 a.m. - 1:09 p.m.YUL-ORD
8h 09m1 stop
Delta Logo
10:30 a.m. - 7:25 p.m.ORD-YUL
7h 55m1 stop
C$ 296Delta
Find Deal
Thu, 4 Sep - Sat, 13 Sep
Delta Logo
7:00 a.m. - 12:16 p.m.YUL-ORD
6h 16m1 stop
Delta Logo
1:25 p.m. - 11:14 p.m.ORD-YUL
8h 49m1 stop
C$ 297Delta
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
4:55 p.m. - 6:41 p.m.YUL-ORD
2h 46mdirect
Logo
8:40 a.m. - 11:57 a.m.ORD-YUL
2h 17mdirect
C$ 334
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Logo
9:15 a.m. - 11:15 p.m.YUL-ORD
15h 00m1 stop
Logo
8:40 a.m. - 11:57 a.m.ORD-YUL
2h 17mdirect
C$ 344
Find Deal
Thu, 4 Sep - Sun, 7 Sep
United Airlines Logo
6:15 a.m. - 8:01 a.m.YUL-ORD
2h 46mdirect
United Airlines Logo
2:08 p.m. - 5:26 p.m.ORD-YUL
2h 18mdirect
C$ 360United Airlines
Find Deal
Thu, 28 Aug - Tue, 2 Sep
United Airlines Logo
4:55 p.m. - 6:41 p.m.YUL-ORD
2h 46mdirect
United Airlines Logo
2:08 p.m. - 5:26 p.m.ORD-YUL
2h 18mdirect
C$ 362United Airlines
Find Deal
Sat, 30 Aug - Tue, 2 Sep

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
11 Oct
YUL6:40 p.m.Montreal Pierre Elliott Trudeau Intl
2h 42m
ORD8:22 p.m.Chicago O'Hare Intl
19 Oct
ORD10:40 a.m.Chicago O'Hare Intl
2h 14m
YUL1:54 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 210
Find similar
Air Canada
11 Oct
YUL10:15 a.m.Montreal Pierre Elliott Trudeau Intl
5h 49m
1 stop
ORD3:04 p.m.Chicago O'Hare Intl
19 Oct
ORD8:40 a.m.Chicago O'Hare Intl
2h 14m
YUL11:54 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 226
Find similar
Air Canada
11 Sep
YUL8:20 a.m.Montreal Pierre Elliott Trudeau Intl
2h 31m
ORD9:51 a.m.Chicago O'Hare Intl
18 Sep
ORD8:25 p.m.Chicago O'Hare Intl
4h 25m
1 stop
YUL1:50 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 238
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
28 Aug
YUL6:15 a.m.Montreal Pierre Elliott Trudeau Intl
2h 46m
ORD8:01 a.m.Chicago O'Hare Intl
2 Sep
ORD2:08 p.m.Chicago O'Hare Intl
2h 18m
YUL5:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 360
Find similar
United Airlines
30 Aug
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
2h 46m
ORD6:41 p.m.Chicago O'Hare Intl
2 Sep
ORD2:08 p.m.Chicago O'Hare Intl
2h 18m
YUL5:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 362
Find similar
United Airlines
23 Aug
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
2h 46m
ORD6:41 p.m.Chicago O'Hare Intl
30 Aug
ORD6:00 p.m.Chicago O'Hare Intl
2h 29m
YUL9:29 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 363
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 96,600 searches. Data last updated 30 July 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

Sat 11/10

6:40 p.m.-8:22 p.m.

Nonstop2h 42m

Chicago O'Hare Intl

Sun 19/10

10:40 a.m.-1:54 p.m.

Nonstop2h 14m

C$ 210

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

10:15 a.m.-3:04 p.m.

1 stop5h 49m

Chicago O'Hare Intl

Sun 19/10

8:40 a.m.-11:54 a.m.

Nonstop2h 14m

C$ 226

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 30/8

5:29 p.m.-7:05 p.m.

Nonstop2h 36m

Chicago O'Hare Intl

Mon 1/9

5:20 a.m.-1:39 p.m.

1 stop7h 19m

C$ 239

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 30/8

7:29 a.m.-7:08 p.m.

1 stop12h 39m

Chicago O'Hare Intl

Tue 2/9

9:11 p.m.-12:24 p.m.

1 stop14h 13m

C$ 260

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

6:00 a.m.-1:09 p.m.

1 stop8h 09m

Chicago O'Hare Intl

Sat 13/9

10:30 a.m.-7:25 p.m.

1 stop7h 55m

C$ 296

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

7:00 a.m.-12:16 p.m.

1 stop6h 16m

Chicago O'Hare Intl

Sat 11/10

1:25 p.m.-11:14 p.m.

1 stop8h 49m

C$ 297

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

4:55 p.m.-6:41 p.m.

Nonstop2h 46m

Chicago O'Hare Intl

Sun 7/9

8:40 a.m.-11:57 a.m.

Nonstop2h 17m

C$ 334

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

9:15 a.m.-11:15 p.m.

1 stop15h 00m

Chicago O'Hare Intl

Sun 7/9

8:40 a.m.-11:57 a.m.

Nonstop2h 17m

C$ 344

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 28/8

6:15 a.m.-8:01 a.m.

Nonstop2h 46m

Chicago O'Hare Intl

Tue 2/9

2:08 p.m.-5:26 p.m.

Nonstop2h 18m

C$ 360

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 30/8

4:55 p.m.-6:41 p.m.

Nonstop2h 46m

Chicago O'Hare Intl

Tue 2/9

2:08 p.m.-5:26 p.m.

Nonstop2h 18m

C$ 362

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?

In general, September is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport 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$ 396. The month of June 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 C$ 448.

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 C$ 753. 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 Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport for around C$ 986.

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 Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 793. 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$ 969 on average. Flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 C$ 532 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 C$ 289 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.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?

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

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

As of July 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 8% 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

C$ 143

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 C$ 143. 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 C$ 210.
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?

    A flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl will travel around 1198.8 km. 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 are refreshed on a daily basis.

  • 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 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 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 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 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
American AirlinesPriceFrom C$ 241Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 288Free CancellationRating
7.1
9,837 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 346Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
WestJetPriceFrom C$ 450Free CancellationRating
7.2
2,975 reviews
Search WestJet flights

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

    United Airlines operates around 39 flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 361, but momondo users have found United Airlines deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from as low as C$ 252 round-trip. United Airlines has been scored 7.4/10 in 8,896 reviews.

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

    American Airlines is also a popular choice for this route. American Airlines flight deals for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from as low as C$ 175 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around C$ 336. American Airlines operates 14 flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in an average week. Users have rated it 7.2/10 across 10,000 reviews.

Travelling to a place near Chicago?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Chicago for you.

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?

momondo helps you find the best flight between Montreal and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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