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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 228

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 26/11. 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

Enter your travel dates to find the best prices.
United Airlines Logo
9:25 a.m. - 10:57 a.m.YUL-ORD
2h 32mdirect
United Airlines Logo
7:10 a.m. - 1:10 p.m.ORD-YUL
5h 00m1 stop
C$ 314United Airlines
Find Deal
Sat, 4 Apr - Wed, 8 Apr
United Airlines Logo
9:25 a.m. - 10:57 a.m.YUL-ORD
2h 32mdirect
United Airlines Logo
9:13 p.m. - 11:38 a.m.ORD-YUL
13h 25m1 stop
C$ 316United Airlines
Find Deal
Sat, 4 Apr - Wed, 8 Apr
United Airlines Logo
3:11 p.m. - 7:48 p.m.YUL-ORD
5h 37m1 stop
United Airlines Logo
7:00 a.m. - 5:55 p.m.ORD-YUL
9h 55m1 stop
C$ 321United Airlines
Find Deal
Mon, 2 Mar - Mon, 9 Mar
Air Canada Logo
9:25 a.m. - 11:18 a.m.YUL-ORD
2h 53mdirect
Air Canada Logo
7:15 a.m. - 10:20 a.m.ORD-YUL
2h 05mdirect
C$ 344Air Canada
Find Deal
Sun, 1 Mar - Thu, 5 Mar
Air Canada Logo
9:10 a.m. - 1:01 p.m.YUL-ORD
4h 51m1 stop
Air Canada Logo
7:15 a.m. - 10:25 a.m.ORD-YUL
2h 10mdirect
C$ 348Air Canada
Find Deal
Fri, 20 Mar - Sun, 29 Mar
Delta Logo
6:00 a.m. - 9:35 a.m.YUL-ORD
4h 35m1 stop
Delta Logo
7:10 a.m. - 5:04 p.m.ORD-YUL
8h 54m1 stop
C$ 358Delta
Find Deal
Sat, 4 Apr - Wed, 8 Apr
American Airlines Logo
7:30 a.m. - 12:11 p.m.YUL-ORD
5h 41m1 stop
American Airlines Logo
6:40 a.m. - 3:24 p.m.ORD-YUL
7h 44m1 stop
C$ 362American Airlines
Find Deal
Fri, 13 Feb - Sat, 21 Feb
Delta Logo
7:00 a.m. - 4:19 p.m.YUL-ORD
10h 19m1 stop
Delta Logo
6:00 a.m. - 1:49 p.m.ORD-YUL
6h 49m1 stop
C$ 390Delta
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Tue, 30 Dec - Sat, 28 Feb
Lufthansa Logo
4:45 p.m. - 6:45 p.m.YUL-ORD
3h 00mdirect
Lufthansa Logo
10:38 a.m. - 2:00 p.m.ORD-YUL
2h 22mdirect
C$ 407Lufthansa
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Thu, 20 Nov - Sun, 23 Nov
American Airlines Logo
3:49 p.m. - 5:49 p.m.YUL-ORD
3h 00mdirect
American Airlines Logo
4:05 p.m. - 10:40 p.m.ORD-YUL
5h 35m1 stop
C$ 421American Airlines
Find Deal
Mon, 24 Nov - Mon, 1 Dec

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

Our best American Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
American Airlines
13 Feb
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
5h 41m
1 stop
ORD12:11 p.m.Chicago O'Hare Intl
21 Feb
ORD6:40 a.m.Chicago O'Hare Intl
7h 44m
1 stop
YUL3:24 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 362
Find similar
American Airlines
24 Nov
YUL3:49 p.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD5:49 p.m.Chicago O'Hare Intl
1 Dec
ORD4:05 p.m.Chicago O'Hare Intl
5h 35m
1 stop
YUL10:40 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 421
Find similar
American Airlines
22 Nov
YUL3:49 p.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD5:49 p.m.Chicago O'Hare Intl
29 Nov
ORD11:47 a.m.Chicago O'Hare Intl
2h 22m
YUL3:09 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 428
Find similar

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
1 Mar
YUL9:25 a.m.Montreal Pierre Elliott Trudeau Intl
2h 53m
ORD11:18 a.m.Chicago O'Hare Intl
5 Mar
ORD7:15 a.m.Chicago O'Hare Intl
2h 05m
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 344
Find similar
Air Canada
20 Mar
YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl
4h 51m
1 stop
ORD1:01 p.m.Chicago O'Hare Intl
29 Mar
ORD7:15 a.m.Chicago O'Hare Intl
2h 10m
YUL10:25 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 348
Find similar
Air Canada
21 Apr
YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl
4h 45m
1 stop
ORD1:00 p.m.Chicago O'Hare Intl
29 Apr
ORD12:50 p.m.Chicago O'Hare Intl
2h 15m
YUL4:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 349
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 29 October 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 4/4

9:25 a.m.-10:57 a.m.

Nonstop2h 32m

Chicago O'Hare Intl

Wed 8/4

7:10 a.m.-1:10 p.m.

1 stop5h 00m

C$ 314

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

9:25 a.m.-10:57 a.m.

Nonstop2h 32m

Chicago O'Hare Intl

Wed 8/4

9:13 p.m.-11:38 a.m.

1 stop13h 25m

C$ 316

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

3:11 p.m.-7:48 p.m.

1 stop5h 37m

Chicago O'Hare Intl

Mon 9/3

7:00 a.m.-5:55 p.m.

1 stop9h 55m

C$ 321

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sun 1/3

9:25 a.m.-11:18 a.m.

Nonstop2h 53m

Chicago O'Hare Intl

Thu 5/3

7:15 a.m.-10:20 a.m.

Nonstop2h 05m

C$ 344

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 20/3

9:10 a.m.-1:01 p.m.

1 stop4h 51m

Chicago O'Hare Intl

Sun 29/3

7:15 a.m.-10:25 a.m.

Nonstop2h 10m

C$ 348

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

6:00 a.m.-9:35 a.m.

1 stop4h 35m

Chicago O'Hare Intl

Wed 8/4

7:10 a.m.-5:04 p.m.

1 stop8h 54m

C$ 358

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 13/2

7:30 a.m.-12:11 p.m.

1 stop5h 41m

Chicago O'Hare Intl

Sat 21/2

6:40 a.m.-3:24 p.m.

1 stop7h 44m

C$ 362

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

7:00 a.m.-4:19 p.m.

1 stop10h 19m

Chicago O'Hare Intl

Sat 28/2

6:00 a.m.-1:49 p.m.

1 stop6h 49m

C$ 390

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

4:45 p.m.-6:45 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Sun 23/11

10:38 a.m.-2:00 p.m.

Nonstop2h 22m

C$ 407

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

3:49 p.m.-5:49 p.m.

Nonstop3h 00m

Chicago O'Hare Intl

Mon 1/12

4:05 p.m.-10:40 p.m.

1 stop5h 35m

C$ 421

Flights are sorted by cheapest round-trip flights 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$ 437. 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$ 456.

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$ 731. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, 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$ 1,001.

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$ 756. 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$ 1,039 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$ 521 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$ 323 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?

You could potentially save up to 8% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight.

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

As of October 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 29% 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$ 327

Fastest flight time

2h 45m

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$ 327. 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$ 617.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 45m
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 32m, 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$ 180Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 262Free CancellationRating
7.1
10,372 reviews
Search Air Canada flights
Porter AirlinesPriceFrom C$ 298Free CancellationRating
8.0
384 reviews
Search Porter Airlines flights
United AirlinesPriceFrom C$ 375Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights

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

    Porter Airlines operates around 9 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$ 559, but momondo users have found Porter Airlines deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from as low as C$ 298 round-trip. Porter Airlines has been scored 8.0/10 in 384 reviews.

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

    United Airlines is also a popular choice for this route. United Airlines flight deals for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from as low as C$ 375 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around C$ 508. United Airlines operates 30 flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in an average week. Users have rated it 7.4/10 across 9,001 reviews.

Travelling to a place near Chicago?

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

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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