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Cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport from C$ 103

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in February or May, booked 38 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

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Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Thu 9/47:13 a.m.
ORD
-
YUL
Nonstop2h 27m
United Airlines
Sun 12/46:10 a.m.
YUL
-
ORD
Nonstop2h 50m
United Airlines
Deal found 3/2C$ 279
Sat 28/36:00 p.m.
ORD
-
YUL
Nonstop2h 17m
United Airlines
Thu 2/46:35 p.m.
YUL
-
ORD
1 stop6h 08m
United Airlines
Deal found 4/2C$ 300
Tue 14/48:18 a.m.
ORD
-
YUL
Nonstop2h 26m
American Airlines
Sat 18/47:45 a.m.
YUL
-
ORD
1 stop17h 13m
American Airlines
Deal found 2/2C$ 301
Thu 26/210:35 a.m.
ORD
-
YUL
Nonstop2h 25m
Lufthansa
Mon 2/34:45 p.m.
YUL
-
ORD
Nonstop3h 00m
Lufthansa
Deal found 4/2C$ 305
Wed 1/47:00 a.m.
ORD
-
YUL
1 stop5h 09m
United Airlines
Tue 14/411:23 a.m.
YUL
-
ORD
1 stop6h 33m
United Airlines
Deal found 5/2C$ 313
Wed 4/33:35 p.m.
ORD
-
YUL
Nonstop2h 05m
Air Canada
Sat 7/36:25 p.m.
YUL
-
ORD
Nonstop2h 45m
Air Canada
Deal found 2/2C$ 315
Tue 24/312:50 p.m.
ORD
-
YUL
Nonstop2h 07m
Air Canada
Thu 26/31:10 p.m.
YUL
-
ORD
Nonstop2h 45m
Air Canada
Deal found 3/2C$ 316
Mon 20/42:06 p.m.
ORD
-
YUL
1 stop9h 07m
United Airlines
Thu 30/49:45 a.m.
YUL
-
ORD
Nonstop2h 43m
United Airlines
Deal found 5/2C$ 317
Tue 7/48:18 a.m.
ORD
-
YUL
Nonstop2h 26m
American Airlines
Tue 14/44:16 p.m.
YUL
-
ORD
1 stop6h 19m
American Airlines
Deal found 2/2C$ 323
Mon 20/47:00 a.m.
ORD
-
YUL
1 stop8h 15m
Delta
Thu 30/412:55 p.m.
YUL
-
ORD
1 stop8h 45m
Delta
Deal found 2/2C$ 326

Find flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 February 2026.

Round-trip from

C$ 279

One-way from

C$ 103

Popular in

December

Cheapest in

February

Average price

C$ 461

Good one-way deal

C$ 246 or less
United Airlines
  • United Airlines
  • 9/4-12/4
  • Nonstop
  • 5h 17m total
  • Chicago to Montreal
Search Deals
United Airlines
  • United Airlines
  • 1/4
  • Nonstop
  • 2h 27m total
  • Chicago to Montreal
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Pierre Elliott Trudeau Intl 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, Cheapflights users made 629,999 searches. Data last updated 5 February 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

O'Hare Intl

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 14/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

4:55 p.m.-6:47 p.m.

Nonstop2h 52m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 3/6

6:12 p.m.-9:34 p.m.

Nonstop2h 22m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

9:45 a.m.-11:20 a.m.

Nonstop2h 35m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 24/3

10:35 a.m.-2:00 p.m.

Nonstop2h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 27/3

6:00 a.m.-8:00 a.m.

Nonstop3h 00m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 27/2

6:00 p.m.-9:17 p.m.

Nonstop2h 17m

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

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

Nonstop3h 00m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 5/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

6:10 a.m.-8:00 a.m.

Nonstop2h 50m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Mon 25/5

7:08 a.m.-10:38 a.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

6:10 a.m.-7:50 a.m.

Nonstop2h 40m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 7/4

6:01 p.m.-9:26 p.m.

Nonstop2h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

6:10 a.m.-8:00 a.m.

Nonstop2h 50m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 28/3

6:00 p.m.-9:17 p.m.

Nonstop2h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

9:45 a.m.-11:37 a.m.

Nonstop2h 52m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 1/5

6:03 p.m.-9:26 p.m.

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

6:10 a.m.-8:00 a.m.

Nonstop2h 50m

C$ 279

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 1/5

8:45 a.m.-2:40 p.m.

1 stop4h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

6:10 a.m.-8:00 a.m.

Nonstop2h 50m

C$ 293

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 21 results
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Best time to book a flight from O'Hare Intl to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Pierre Elliott Trudeau Intl. Price data was last updated on 30 January 2026.

Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 149). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to YUL?

Find hourly flight availability from O'Hare Intl to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 February 2026.

When flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pierre Elliott Trudeau Intl. Reviews last updated 5 February 2026.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,694 reviews
Check prices

Crew

7.8

Overall

7.1

Entertainment

6.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,694 reviews
Air Canada
7.1
Good
10,694 reviews
Check prices

Crew

7.8

Overall

7.1

Entertainment

6.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Pierre Elliott Trudeau Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in 2h 27m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 1199 km. Most flights are nonstop.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    According to our current data, Air Canada (C$ 302), offers the cheapest pricing from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. This flight start at 43% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Before booking your flight to Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (66%), Japan Airlines (66%), Envoy Air( 66%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport? While on average our users pay C$ 362, our data indicates the cheapest price to be C$ 139. The most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), is priced around C$ 260.

  • Can I find deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 149). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of C$ 387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Dorval
Trois-Rivières
Sherbrooke
Cornwall
Brossard
Montebello
Boucherville
Longueuil
Drummondville
Magog
Saint-Jean-sur-Richelieu
Bromont
North Hatley
Saint-Sauveur
Louiseville

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for O'Hare Intl to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Pierre Elliott Trudeau Intl flights

Top airline flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover the top airline that operate flights from O'Hare Intl to Pierre Elliott Trudeau Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 5 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 302AverageC$ 660FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

When you search for this flight from O'Hare Intl to Pierre Elliott Trudeau Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Pierre Elliott Trudeau Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from O'Hare Intl to Pierre Elliott Trudeau Intl with no change fees?

Certainly. Search results for flights to Pierre Elliott Trudeau Intl from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Pierre Elliott Trudeau Intl become cheaper?

Yes, Cheapflights offers price alerts on O'Hare Intl to Pierre Elliott Trudeau Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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