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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario from C$ 324

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Ontario
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 July 2026.

Sat 22/87:00 a.m.
YUL
-
ONT
2 stops18h 23m
Delta
Sun 30/810:00 p.m.
ONT
-
YUL
1 stop12h 41m
Delta
Deal found 8/7C$ 565
Thu 6/89:30 a.m.
YUL
-
ONT
2 stops15h 22m
Delta
Tue 11/812:00 p.m.
ONT
-
YUL
1 stop8h 52m
Delta
Deal found 8/7C$ 566
Sat 22/83:45 p.m.
YUL
-
ONT
1 stop20h 49m
American Airlines
Sat 29/812:33 p.m.
ONT
-
YUL
1 stop23h 11m
American Airlines
Deal found 9/7C$ 568
Wed 9/1212:45 p.m.
YUL
-
ONT
1 stop8h 33m
Delta
Wed 16/1212:00 p.m.
ONT
-
YUL
1 stop8h 51m
Delta
Deal found 8/7C$ 586
Fri 28/89:45 a.m.
YUL
-
ONT
1 stop15h 50m
Lufthansa
Wed 9/91:56 p.m.
ONT
-
YUL
1 stop15h 20m
Lufthansa
Deal found 11/7C$ 589
Thu 30/712:44 p.m.
YUL
-
ONT
1 stop12h 06m
Delta
Sun 9/810:00 p.m.
ONT
-
YUL
1 stop10h 39m
Delta
Deal found 8/7C$ 596
Thu 6/812:44 p.m.
YUL
-
ONT
1 stop12h 08m
Delta
Mon 10/810:00 p.m.
ONT
-
YUL
1 stop10h 39m
Delta
Deal found 8/7C$ 597
Fri 28/84:55 p.m.
YUL
-
ONT
1 stop8h 40m
United Airlines
Sat 5/91:56 p.m.
ONT
-
YUL
1 stop15h 20m
United Airlines
Deal found 8/7C$ 599
Thu 15/1012:44 p.m.
YUL
-
ONT
1 stop12h 17m
Delta
Tue 20/1012:18 p.m.
ONT
-
YUL
1 stop8h 41m
Delta
Deal found 10/7C$ 613
Thu 6/85:30 p.m.
YUL
-
ONT
2 stops32h 15m
WestJet
Thu 13/86:20 a.m.
ONT
-
YUL
2 stops21h 45m
WestJet
Deal found 10/7C$ 620
Fri 7/89:45 a.m.
YUL
-
ONT
1 stop16h 06m
United Airlines
Mon 10/81:50 p.m.
ONT
-
YUL
1 stop15h 26m
United Airlines
Deal found 7/7C$ 627
Wed 29/712:44 p.m.
YUL
-
ONT
1 stop12h 06m
Delta
Sun 9/810:00 p.m.
ONT
-
YUL
1 stop10h 39m
Delta
Deal found 8/7C$ 628

Find flight deals from Pierre Elliott Trudeau Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT). 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 12 July 2026.

Round-trip from

C$ 565

One-way from

C$ 324

Popular in

June

Cheapest in

September

Average price

C$ 647
Delta
  • Delta
  • 22/8-30/8
  • 3 total stops
  • 31h 04m total
  • Montreal to Ontario
Search Deals
United Airlines
  • United Airlines
  • 22/8
  • 1 total stop
  • 15h 50m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Ontario 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 12 July 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

9:45 a.m.-8:01 p.m.

2 stops13h 16m

Ontario

Sun 30/8

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

2 stops12h 27m

C$ 565

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 6/8

9:30 a.m.-9:52 p.m.

2 stops15h 22m

Ontario

Mon 10/8

10:00 p.m.-6:54 p.m.

2 stops17h 54m

C$ 566

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

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

1 stop8h 40m

Ontario

Mon 31/8

1:56 p.m.-8:16 a.m.

1 stop15h 20m

C$ 566

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 23/8

9:45 a.m.-10:35 p.m.

1 stop15h 50m

Ontario

Sun 30/8

7:13 p.m.-5:30 p.m.

2 stops19h 17m

C$ 640
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 6/8

4:30 p.m.-9:55 p.m.

1 stop8h 25m

Ontario

Wed 12/8

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

1 stop7h 28m

C$ 648

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 10/12

12:45 p.m.-10:14 p.m.

1 stop12h 29m

Ontario

Mon 14/12

12:00 p.m.-8:42 a.m.

2 stops17h 42m

C$ 685

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 8/8

8:15 a.m.-8:42 p.m.

1 stop15h 27m

Ontario

Wed 12/8

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

1 stop7h 28m

C$ 723

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

8:15 a.m.-8:42 p.m.

1 stop15h 27m

Ontario

Sun 26/7

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

1 stop7h 28m

C$ 723

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

8:15 a.m.-12:47 p.m.

1 stop7h 32m

Ontario

Tue 28/7

5:00 a.m.-5:10 p.m.

1 stop9h 10m

C$ 723

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 24/12

12:45 p.m.-10:14 p.m.

1 stop12h 29m

Ontario

Thu 31/12

10:59 p.m.-11:44 a.m.

1 stop9h 45m

C$ 732

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Pierre Elliott Trudeau Intl to Ontario

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

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Ontario. 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 into for flights to Ontario from Montreal Pierre Elliott Trudeau Intl?

    For a flight from Montreal Pierre Elliott Trudeau Intl to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 0 airlines have flights to Ontario from Montreal Pierre Elliott Trudeau Intl on a regular basis.

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

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in 13h 16m. Fly via United Airlines or Delta to get the fastest option. There are 3899 km between Montreal Pierre Elliott Trudeau Intl Airport and Ontario. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

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

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

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

Certainly. Search results for flights to Ontario from Pierre Elliott Trudeau 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 Pierre Elliott Trudeau Intl to Ontario become cheaper?

Yes! Start tracking prices for Pierre Elliott Trudeau Intl to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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