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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario from C$ 321

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
26 Aug — 2 Sep1
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 27 July 2026.

Sat 22/86:00 a.m.
YUL
-
ONT
2 stops15h 30m
Delta
Sat 29/87:05 a.m.
ONT
-
YUL
2 stops13h 25m
Delta
Deal found 24/7C$ 572
Sat 22/83:45 p.m.
YUL
-
ONT
1 stop10h 14m
American Airlines
Sat 29/82:43 p.m.
ONT
-
YUL
1 stop21h 01m
American Airlines
Deal found 25/7C$ 588
Tue 25/83:45 p.m.
YUL
-
ONT
1 stop10h 14m
American Airlines
Tue 1/96:15 a.m.
ONT
-
YUL
2 stops13h 38m
American Airlines
Deal found 26/7C$ 590
Wed 19/86:00 a.m.
YUL
-
ONT
2 stops15h 16m
United Airlines
Sun 23/87:13 p.m.
ONT
-
YUL
1 stop10h 03m
United Airlines
Deal found 24/7C$ 597
Fri 21/812:44 p.m.
YUL
-
ONT
1 stop12h 08m
Delta
Fri 28/812:00 p.m.
ONT
-
YUL
1 stop8h 52m
Delta
Deal found 24/7C$ 623
Tue 20/107:26 a.m.
YUL
-
ONT
1 stop15h 28m
American Airlines
Tue 20/1010:10 p.m.
ONT
-
YUL
1 stop12h 40m
American Airlines
Deal found 26/7C$ 635
Fri 21/87:55 a.m.
YUL
-
ONT
2 stops10h 24m
American Airlines
Fri 28/84:07 p.m.
ONT
-
YUL
2 stops16h 36m
American Airlines
Deal found 24/7C$ 643
Tue 20/107:26 a.m.
YUL
-
ONT
1 stop15h 28m
American Airlines
Sat 24/1011:59 p.m.
ONT
-
YUL
1 stop11h 44m
American Airlines
Deal found 26/7C$ 644
Sat 15/82:30 p.m.
YUL
-
ONT
2 stops22h 04m
American Airlines
Sat 22/86:15 a.m.
ONT
-
YUL
2 stops13h 38m
American Airlines
Deal found 22/7C$ 645
Mon 21/95:30 p.m.
YUL
-
ONT
2 stops32h 10m
WestJet
Mon 28/911:54 a.m.
ONT
-
YUL
2 stops16h 11m
WestJet
Deal found 24/7C$ 647
Thu 24/95:30 p.m.
YUL
-
ONT
2 stops32h 10m
WestJet
Tue 29/96:20 a.m.
ONT
-
YUL
2 stops21h 45m
WestJet
Deal found 25/7C$ 648
Thu 8/107:15 a.m.
YUL
-
ONT
2 stops18h 28m
WestJet
Wed 14/106:20 a.m.
ONT
-
YUL
2 stops21h 45m
WestJet
Deal found 22/7C$ 650

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 27 July 2026.

Round-trip from

C$ 572

One-way from

C$ 321

Popular in

June

Cheapest in

September

Average price

C$ 709
Delta
  • Delta
  • 22/8-29/8
  • 4 total stops
  • 28h 55m total
  • Montreal to Ontario
Search Deals
2/9
  • 2/9
  • 3 total stops
  • 30h 44m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 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 27 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

Wed 19/8

6:00 a.m.-6:16 p.m.

2 stops15h 16m

Ontario

Sun 23/8

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

2 stops12h 27m

C$ 597
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

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

1 stop8h 40m

Ontario

Sun 6/9

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

1 stop7h 30m

C$ 597

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

12:44 p.m.-6:30 p.m.

1 stop8h 46m

Ontario

Wed 26/8

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

1 stop8h 52m

C$ 664

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

8:15 a.m.-12:50 p.m.

1 stop7h 35m

Ontario

Thu 27/8

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

2 stops19h 17m

C$ 682

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

8:10 a.m.-10:51 p.m.

1 stop17h 41m

Ontario

Mon 28/9

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

1 stop9h 10m

C$ 707

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

9:45 a.m.-10:59 p.m.

1 stop16h 14m

Ontario

Fri 18/9

7:13 p.m.-8:16 a.m.

1 stop10h 03m

C$ 728

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

8:15 a.m.-8:53 p.m.

1 stop15h 38m

Ontario

Thu 13/8

5:00 a.m.-5:13 p.m.

1 stop9h 13m

C$ 757

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 20/10

8:10 a.m.-3:11 p.m.

1 stop10h 01m

Ontario

Thu 29/10

6:00 a.m.-4:46 p.m.

1 stop7h 46m

C$ 757

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

8:15 a.m.-8:58 p.m.

1 stop15h 43m

Ontario

Sat 17/10

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

1 stop7h 30m

C$ 769

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 6/8

12:44 p.m.-9:52 p.m.

1 stop12h 08m

Ontario

Fri 14/8

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

1 stop8h 52m

C$ 772

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

Showing 1-10 of 22 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 8h 46m. 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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