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Cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport from C$ 390

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

C$ 732

One-way from

C$ 390

Popular in

December

Cheapest in

March

Average price

C$ 561
American Airlines
  • American Airlines
  • 29/10-5/11
  • 4 total stops
  • 37h 23m total
  • Ontario to Montreal
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30/10
  • 30/10
  • 2 total stops
  • 12h 54m total
  • Ontario to Montreal
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Highest demand for flights based on searches. 15% potential increase in price (C$ 161 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Pierre Elliott Trudeau Intl

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 15 September 2025.

Wed 29/104:49 p.m.ONT - YUL
2 stops15h 51mAmerican Airlines
Wed 5/112:29 p.m.YUL - ONT
2 stops21h 32mAmerican Airlines
Deal found 14/9C$ 732
Sat 1/116:15 a.m.ONT - YUL
2 stops13h 29mAmerican Airlines
Mon 10/117:30 a.m.YUL - ONT
2 stops17h 29mAmerican Airlines
Deal found 14/9C$ 774
Thu 30/106:53 a.m.ONT - YUL
2 stops13h 29mMultiple Airlines
Thu 6/115:25 p.m.YUL - ONT
1 stop9h 25mMultiple Airlines
Deal found 15/9C$ 836
Sat 1/116:38 p.m.ONT - YUL
1 stop20h 11mUnited Airlines
Mon 10/115:50 p.m.YUL - ONT
1 stop21h 47mUnited Airlines
Deal found 14/9C$ 856
Wed 12/116:38 p.m.ONT - YUL
1 stop19h 11mUnited Airlines
Thu 27/115:50 p.m.YUL - ONT
1 stop21h 47mUnited Airlines
Deal found 14/9C$ 858
Tue 7/1012:47 p.m.ONT - YUL
2 stops18h 03mAmerican Airlines
Wed 15/1010:30 a.m.YUL - ONT
2 stops15h 12mAmerican Airlines
Deal found 14/9C$ 861
Sat 15/111:29 p.m.ONT - YUL
1 stop24h 29mUnited Airlines
Thu 27/115:50 p.m.YUL - ONT
1 stop28h 51mUnited Airlines
Deal found 14/9C$ 898
Wed 29/101:40 p.m.ONT - YUL
1 stop24h 09mUnited Airlines
Wed 5/118:20 a.m.YUL - ONT
2 stops17h 11mUnited Airlines
Deal found 14/9C$ 908
Wed 12/116:38 p.m.ONT - YUL
1 stop19h 11mUnited Airlines
Sun 23/119:15 a.m.YUL - ONT
2 stops14h 29mUnited Airlines
Deal found 14/9C$ 910
Tue 11/115:05 a.m.ONT - YUL
2 stops13h 37mUnited Airlines
Thu 27/115:50 p.m.YUL - ONT
1 stop21h 47mUnited Airlines
Deal found 14/9C$ 912

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 15 September 2025.
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

Fri 20/2

10:38 a.m.-3:20 p.m.

2 stops25h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

2:25 p.m.-8:42 a.m.

2 stops21h 17m

C$ 858

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 12/11

6:38 p.m.-4:49 p.m.

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

5:50 p.m.-12:37 p.m.

1 stop21h 47m

C$ 858

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 12/11

6:38 p.m.-4:49 p.m.

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

9:15 a.m.-8:44 p.m.

2 stops14h 29m

C$ 910

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 17/11

5:05 a.m.-9:42 p.m.

2 stops13h 37m

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

5:50 p.m.-7:41 p.m.

1 stop28h 51m

C$ 912

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 12/11

6:38 p.m.-4:49 p.m.

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

5:25 p.m.-12:32 p.m.

1 stop22h 07m

C$ 915

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 30/10

6:38 p.m.-4:49 p.m.

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Thu 6/11

5:25 p.m.-8:44 p.m.

1 stop30h 19m

C$ 953

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 15/11

1:29 p.m.-8:32 a.m.

2 stops16h 03m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

9:15 a.m.-8:44 p.m.

2 stops14h 29m

C$ 956

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 17/11

5:05 a.m.-9:42 p.m.

2 stops13h 37m

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

6:00 a.m.-8:44 p.m.

2 stops17h 44m

C$ 956

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 15/11

1:29 p.m.-8:32 a.m.

2 stops16h 03m

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

5:25 p.m.-12:32 p.m.

1 stop22h 07m

C$ 967

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 17/11

5:05 a.m.-9:42 p.m.

2 stops13h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

5:25 p.m.-12:32 p.m.

1 stop22h 07m

C$ 967

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 20 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, October is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 317). 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 19h 11m. American Airlines provides one of the quickest options available for as low as C$ 858. 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, October is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 317). 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
Sherbrooke
Cornwall
Brossard
Longueuil
Montebello
Trois-Rivières
Drummondville
Saint-Jean-sur-Richelieu
Boucherville
Bromont
North Hatley
Louiseville

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Fly with Cheapflights

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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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