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Cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport from C$ 210

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
23 Aug — 30 Aug1
1 adult

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 18 August 2025.

Round-trip from

C$ 859

One-way from

C$ 210

Popular in

January

Cheapest in

February

Average price

C$ 640
Delta
  • Delta
  • 3/9-16/9
  • 4 total stops
  • 34h 37m total
  • Ontario to Montreal
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15/10
  • 15/10
  • 1 total stop
  • 20h 10m total
  • Ontario to Montreal
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Highest demand for flights based on searches. 17% potential increase in price (C$ 217 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease (C$ 76 potential savings vs. average RT price).
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Average for round-trip flights in August 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 18 August 2025.

Wed 3/911:45 a.m.ONT - YUL
2 stops19h 22mDelta
Tue 16/97:00 a.m.YUL - ONT
2 stops15h 15mDelta
Deal found 17/8C$ 859
Wed 3/911:45 a.m.ONT - YUL
2 stops19h 22mDelta
Thu 11/97:00 a.m.YUL - ONT
2 stops15h 15mDelta
Deal found 17/8C$ 873
Wed 3/911:45 a.m.ONT - YUL
2 stops19h 22mDelta
Mon 15/97:00 a.m.YUL - ONT
2 stops30h 42mDelta
Deal found 17/8C$ 909
Tue 16/910:00 p.m.ONT - YUL
2 stops20h 57mDelta
Mon 22/911:00 a.m.YUL - ONT
2 stops14h 23mDelta
Deal found 16/8C$ 919
Sun 14/910:00 p.m.ONT - YUL
2 stops20h 57mDelta
Mon 22/97:00 a.m.YUL - ONT
2 stops18h 23mDelta
Deal found 16/8C$ 933
Thu 9/109:36 a.m.ONT - YUL
1 stop28h 24mUnited Airlines
Wed 15/108:05 a.m.YUL - ONT
1 stop17h 47mUnited Airlines
Deal found 18/8C$ 948
Sat 6/912:47 p.m.ONT - YUL
2 stops17h 59mAmerican Airlines
Mon 15/97:50 a.m.YUL - ONT
2 stops16h 58mAmerican Airlines
Deal found 17/8C$ 960
Wed 3/911:45 a.m.ONT - YUL
2 stops19h 22mDelta
Fri 12/97:00 a.m.YUL - ONT
2 stops30h 42mDelta
Deal found 17/8C$ 964
Sat 6/97:00 a.m.ONT - YUL
2 stops24h 09mUnited Airlines
Mon 15/94:45 p.m.YUL - ONT
1 stop27h 52mUnited Airlines
Deal found 16/8C$ 970
Tue 16/91:42 p.m.ONT - YUL
2 stops17h 58mUnited Airlines
Mon 22/98:05 a.m.YUL - ONT
1 stop15h 28mUnited Airlines
Deal found 16/8C$ 978
Sat 6/91:42 p.m.ONT - YUL
1 stop15h 34mUnited Airlines
Tue 9/98:05 a.m.YUL - ONT
1 stop12h 32mUnited Airlines
Deal found 16/8C$ 992

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 18 August 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

Thu 4/9

11:45 a.m.-4:07 p.m.

2 stops25h 22m

Montreal Pierre Elliott Trudeau Intl

Tue 16/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 859

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/9

11:45 a.m.-10:07 a.m.

2 stops19h 22m

Montreal Pierre Elliott Trudeau Intl

Tue 16/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 859

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 5/9

7:05 a.m.-10:07 a.m.

2 stops24h 02m

Montreal Pierre Elliott Trudeau Intl

Tue 16/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 859

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 5/9

7:05 a.m.-10:07 a.m.

2 stops24h 02m

Montreal Pierre Elliott Trudeau Intl

Thu 11/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 873

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/9

11:45 a.m.-4:07 p.m.

2 stops25h 22m

Montreal Pierre Elliott Trudeau Intl

Thu 11/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 873

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/9

11:45 a.m.-10:07 a.m.

2 stops19h 22m

Montreal Pierre Elliott Trudeau Intl

Thu 11/9

7:00 a.m.-7:15 p.m.

2 stops15h 15m

C$ 873

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 5/9

11:45 a.m.-8:04 p.m.

2 stops29h 19m

Montreal Pierre Elliott Trudeau Intl

Mon 15/9

7:00 a.m.-10:42 a.m.

2 stops30h 42m

C$ 909

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/9

11:45 a.m.-4:07 p.m.

2 stops25h 22m

Montreal Pierre Elliott Trudeau Intl

Mon 15/9

7:00 a.m.-10:42 a.m.

2 stops30h 42m

C$ 909

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/9

11:45 a.m.-10:07 a.m.

2 stops19h 22m

Montreal Pierre Elliott Trudeau Intl

Mon 15/9

7:00 a.m.-10:42 a.m.

2 stops30h 42m

C$ 909

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 16/9

10:00 p.m.-9:57 p.m.

2 stops20h 57m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

11:00 a.m.-10:23 p.m.

2 stops14h 23m

C$ 919

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/8

Showing 1-10 of 21 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 25h 22m. Delta provides one of the quickest options available for as low as C$ 859. Ontario and Montreal Pierre Elliott Trudeau Intl Airport are separated by a distance of 3899 km.

  • 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
Longueuil
Montebello
Brossard
Drummondville
Trois-Rivières
Saint-Jean-sur-Richelieu
Boucherville
Saint-Sauveur
Bromont
North Hatley
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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