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Cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport from C$ 181

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 16 January 2026.

Round-trip from

C$ 814

One-way from

C$ 181

Popular in

December

Cheapest in

March

Average price

C$ 727
American Airlines
  • American Airlines
  • 15/2-18/2
  • 3 total stops
  • 39h 14m total
  • Ontario to Montreal
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25/2
  • 25/2
  • 2 total stops
  • 12h 43m total
  • Ontario to Montreal
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 174 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 28 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Ontario to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2026.

Sun 15/210:37 p.m.
ONT
-
YUL
1 stop21h 07m
American Airlines
Wed 18/27:12 a.m.
YUL
-
ONT
2 stops18h 07m
American Airlines
Deal found 14/1C$ 814
Thu 23/46:49 p.m.
ONT
-
YUL
1 stop18h 58m
United Airlines
Mon 27/46:00 p.m.
YUL
-
ONT
1 stop18h 56m
United Airlines
Deal found 15/1C$ 902
Fri 13/210:37 p.m.
ONT
-
YUL
1 stop12h 08m
American Airlines
Sat 21/27:30 a.m.
YUL
-
ONT
2 stops14h 39m
American Airlines
Deal found 14/1C$ 913
Thu 14/56:00 a.m.
ONT
-
YUL
1 stop11h 15m
United Airlines
Sun 17/58:05 a.m.
YUL
-
ONT
1 stop28h 38m
United Airlines
Deal found 14/1C$ 923
Thu 12/36:15 a.m.
ONT
-
YUL
2 stops11h 45m
Air Canada
Wed 18/312:10 p.m.
YUL
-
ONT
2 stops11h 40m
Air Canada
Deal found 15/1C$ 953
Sat 31/11:24 p.m.
ONT
-
YUL
2 stops15h 08m
United Airlines
Wed 4/28:20 a.m.
YUL
-
ONT
2 stops15h 38m
United Airlines
Deal found 13/1C$ 956
Wed 18/212:18 p.m.
ONT
-
YUL
2 stops23h 46m
American Airlines
Sun 22/22:25 p.m.
YUL
-
ONT
1 stop9h 59m
American Airlines
Deal found 14/1C$ 962
Wed 13/56:00 a.m.
ONT
-
YUL
1 stop11h 15m
United Airlines
Sun 17/58:05 a.m.
YUL
-
ONT
1 stop12h 42m
United Airlines
Deal found 14/1C$ 976
Thu 19/25:02 p.m.
ONT
-
YUL
2 stops19h 02m
American Airlines
Sun 22/22:25 p.m.
YUL
-
ONT
1 stop9h 59m
American Airlines
Deal found 14/1C$ 999

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 16 January 2026.
Use the filters below to find and compare flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Ontario

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 15/2

10:37 p.m.-10:44 p.m.

1 stop21h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

7:12 a.m.-10:19 p.m.

2 stops18h 07m

C$ 814

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 23/4

6:49 p.m.-4:47 p.m.

1 stop18h 58m

Montreal Pierre Elliott Trudeau Intl

Mon 27/4

6:00 p.m.-9:56 a.m.

1 stop18h 56m

C$ 902

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 13/5

6:00 a.m.-8:15 p.m.

1 stop11h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

8:05 a.m.-5:47 p.m.

1 stop12h 42m

C$ 921

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 13/2

11:58 p.m.-1:45 p.m.

2 stops10h 47m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

7:12 a.m.-7:09 p.m.

2 stops14h 57m

C$ 921

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 14/5

6:00 a.m.-8:15 p.m.

1 stop11h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

8:05 a.m.-9:43 a.m.

1 stop28h 38m

C$ 923

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 12/3

6:15 a.m.-9:00 p.m.

2 stops11h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

12:10 p.m.-8:50 p.m.

2 stops11h 40m

C$ 953

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 9/4

1:27 p.m.-10:40 a.m.

2 stops18h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

5:35 p.m.-6:02 p.m.

2 stops27h 27m

C$ 953

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 31/1

1:24 p.m.-7:32 a.m.

2 stops15h 08m

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

8:20 a.m.-8:58 p.m.

2 stops15h 38m

C$ 956

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 13/5

6:00 a.m.-8:15 p.m.

1 stop11h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

8:05 a.m.-5:47 p.m.

1 stop12h 42m

C$ 976

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 19/2

5:02 p.m.-3:04 p.m.

2 stops19h 02m

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

2:25 p.m.-9:24 p.m.

1 stop9h 59m

C$ 999

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/1

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Ontario 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 Ontario to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 211). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in September is currently the most expensive (average of C$ 360). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario 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.

  • What airport do you fly from for flights from Ontario to Montreal Pierre Elliott Trudeau Intl?

    If you book a flight to Montreal Pierre Elliott Trudeau Intl from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario. There are 0 flights from Ontario to Montreal Pierre Elliott Trudeau Intl per day from 0 different airlines.

  • How long is the flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

    A quick flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport can take about 18h 58m. American Airlines provides one of the quickest options available for as low as C$ 902. Ontario and Montreal Pierre Elliott Trudeau Intl Airport are separated by a distance of 3899 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

  • How can I find direct flights from Ontario 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 Ontario to Pierre Elliott Trudeau Intl.

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

    Yes. Cheapflights offers flight deals from Ontario 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 Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 211). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in September is currently the most expensive (average of C$ 360). 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

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Pierre Elliott Trudeau Intl?

Cheapflights helps you search for flights from Ontario to Pierre Elliott Trudeau Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Ontario to Pierre Elliott Trudeau Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Pierre Elliott Trudeau Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Pierre Elliott Trudeau Intl from Ontario today and book when prices fit your budget.

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