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Cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport from C$ 317

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 15 June 2026.

Fri 3/76:10 a.m.
ONT
-
YUL
1 stop8h 20m
Lufthansa
Thu 9/79:45 a.m.
YUL
-
ONT
1 stop16h 06m
Lufthansa
Deal found 11/6C$ 642
Fri 3/71:50 p.m.
ONT
-
YUL
1 stop15h 26m
Air Canada
Thu 9/74:55 p.m.
YUL
-
ONT
1 stop8h 56m
Air Canada
Deal found 14/6C$ 712
Fri 3/710:00 p.m.
ONT
-
YUL
1 stop10h 43m
KLM
Thu 9/712:44 p.m.
YUL
-
ONT
1 stop8h 46m
KLM
Deal found 11/6C$ 715
Mon 10/86:39 p.m.
ONT
-
YUL
1 stop10h 37m
United Airlines
Thu 13/89:45 a.m.
YUL
-
ONT
1 stop15h 50m
United Airlines
Deal found 14/6C$ 727
Thu 6/81:50 p.m.
ONT
-
YUL
1 stop15h 26m
United Airlines
Wed 12/89:45 a.m.
YUL
-
ONT
2 stops13h 16m
United Airlines
Deal found 14/6C$ 741
Wed 5/85:00 a.m.
ONT
-
YUL
2 stops14h 06m
United Airlines
Wed 12/89:45 a.m.
YUL
-
ONT
2 stops14h 08m
United Airlines
Deal found 14/6C$ 748
Sun 30/87:00 a.m.
ONT
-
YUL
1 stop7h 30m
United Airlines
Sat 5/94:55 p.m.
YUL
-
ONT
1 stop8h 40m
United Airlines
Deal found 12/6C$ 759

Find 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 June 2026.

Round-trip from

C$ 642

One-way from

C$ 317

Popular in

June

Cheapest in

October

Average price

C$ 1,008
Lufthansa
  • Lufthansa
  • 3/7-9/7
  • 2 total stops
  • 24h 26m total
  • Ontario to Montreal
Search Deals
KLM
  • KLM
  • 10/8
  • 1 total stop
  • 10h 39m total
  • Ontario to Montreal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 25/8

7:00 a.m.-5:30 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

4:55 p.m.-10:35 p.m.

1 stop8h 40m

C$ 727

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 21/7

6:10 a.m.-5:30 p.m.

1 stop8h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

6:00 a.m.-9:55 p.m.

2 stops18h 55m

C$ 741

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 30/8

7:00 a.m.-5:30 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

4:55 p.m.-11:04 p.m.

1 stop9h 09m

C$ 801
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 13/8

5:00 a.m.-3:28 p.m.

1 stop7h 28m

Montreal Pierre Elliott Trudeau Intl

Mon 17/8

4:30 p.m.-9:59 p.m.

1 stop8h 29m

C$ 847

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 8/7

11:48 a.m.-11:52 p.m.

1 stop9h 04m

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

12:44 p.m.-9:50 p.m.

1 stop12h 06m

C$ 854

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/7

12:00 p.m.-11:52 p.m.

1 stop8h 52m

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

12:44 p.m.-9:50 p.m.

1 stop12h 06m

C$ 854

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 23/10

6:00 a.m.-10:40 a.m.

2 stops25h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 31/10

9:30 a.m.-9:21 p.m.

2 stops14h 51m

C$ 854

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 23/10

6:00 a.m.-10:06 p.m.

2 stops13h 06m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

11:00 a.m.-9:21 p.m.

2 stops13h 21m

C$ 854

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 14/7

1:50 p.m.-8:16 a.m.

1 stop15h 26m

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

9:45 a.m.-10:51 p.m.

1 stop16h 06m

C$ 878

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 20/7

6:39 p.m.-8:16 a.m.

1 stop10h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

4:55 p.m.-10:51 p.m.

1 stop8h 56m

C$ 878

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 21 resultsSorted by cheapest first
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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.

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 7h 30m. United Airlines provides one of the quickest options available for as low as C$ 727. 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.

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
Brossard
Sherbrooke
Cornwall
Longueuil
Montebello
Magog
Boucherville
Bromont
Saint-Jean-sur-Richelieu
Drummondville
North Hatley
Saint-Sauveur
Louiseville

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

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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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