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Cheap flights from Montreal to Ontario from C$ 304

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ONT
15 Sep — 22 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Ontario
Explore the most affordable flight options available from Montreal to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 August 2026.

Fri 30/105:10 p.m. -
2 stops9h 45m
Tue 3/1112:18 p.m. -
1 stop8h 39m
Deal found 12/8C$ 610
Thu 27/812:44 p.m. -
1 stop12h 08m
Sun 30/812:00 p.m. -
1 stop8h 52m
Deal found 13/8C$ 612
Thu 27/87:29 a.m. -
2 stops14h 18m
Sun 30/86:00 a.m. -
2 stops13h 53m
Deal found 13/8C$ 630
Fri 25/98:00 p.m. -
2 stops29h 40m
Sun 4/106:00 a.m. -
2 stops22h 05m
Deal found 12/8C$ 635
Tue 6/107:15 a.m. -
2 stops36h 57m
Tue 20/1011:56 a.m. -
2 stops16h 09m
Deal found 11/8C$ 638
Wed 9/98:15 a.m. -
1 stop7h 35m
Wed 16/95:00 a.m. -
1 stop7h 29m
Deal found 11/8C$ 639
Wed 2/99:30 a.m. -
2 stops13h 23m
Tue 8/912:17 p.m. -
1 stop8h 33m
Deal found 12/8C$ 642
Wed 19/812:47 p.m. -
2 stops13h 47m
Wed 2/912:00 p.m. -
1 stop8h 52m
Deal found 12/8C$ 646
Sat 5/99:45 a.m. -
1 stop15h 50m
Sat 12/91:56 p.m. -
1 stop15h 20m
Deal found 14/8C$ 649
Sat 29/812:47 p.m. -
2 stops12h 36m
Sat 5/912:00 p.m. -
1 stop8h 52m
Deal found 13/8C$ 651
Tue 1/92:46 p.m. -
1 stop8h 07m
Sat 5/912:00 p.m. -
1 stop8h 52m
Deal found 16/8C$ 653

Find flight deals from Montreal to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 16 August 2026.

Round-trip from

C$ 565

One-way from

C$ 304

Popular in

December

Cheapest in

January

Average price

C$ 725
Delta
  • Delta
  • 5/1-9/1
  • 4 total stops
  • 30h 21m total
  • Montreal to Ontario
Search Deals
13/9
  • 13/9
  • 2 total stops
  • 41h 30m total
  • Montreal to Ontario
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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 16 August 2026.
Use the filters below to find and compare flights from Montreal to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

12:47 p.m.-10:23 p.m.

2 stops12h 36m

Ontario

Sat 5/9

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

1 stop8h 52m

C$ 651

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

5:10 p.m.-11:34 p.m.

2 stops9h 24m

Ontario

Tue 1/9

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

1 stop8h 52m

C$ 678
Quickest round-trip

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

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$ 681

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

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

1 stop8h 40m

Ontario

Tue 8/9

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

1 stop15h 20m

C$ 689

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

6:35 p.m.-10:23 a.m.

1 stop18h 48m

Ontario

Tue 20/10

11:10 a.m.-8:16 a.m.

1 stop18h 06m

C$ 689

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

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

2 stops16h 14m

Ontario

Thu 22/10

5:00 a.m.-10:06 p.m.

2 stops14h 06m

C$ 707

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

4:55 p.m.-10:59 p.m.

1 stop9h 04m

Ontario

Sun 13/9

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

1 stop10h 03m

C$ 709

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

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

1 stop8h 40m

Ontario

Mon 7/9

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

1 stop10h 03m

C$ 710

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 30/10

6:00 a.m.-4:23 p.m.

2 stops13h 23m

Ontario

Tue 3/11

7:07 a.m.-11:25 p.m.

2 stops13h 18m

C$ 713

MontrealOntario

YUL Montreal Pierre Elliott Trudeau Intl - ONT Ontario

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 23/9

4:55 p.m.-10:59 p.m.

1 stop9h 04m

Ontario

Sun 27/9

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

1 stop7h 30m

C$ 756

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Montreal to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Montreal 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 Montreal to Ontario

What’s the top layover airport for flights from Montreal to Ontario?

Share of one-stop round-trip flights from Montreal to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Charlotte (CLT) – chosen by Cheapflights users on 50% of one-stop itineraries from Montreal to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Ontario?

Average round-trip fare for 1-stop flights from Montreal to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Charlotte (CLT) is the most affordable 1-stop option, with an average round-trip price of C$ 700.

What’s the fastest layover option from Montreal to Ontario?

Shortest average travel time for 1-stop one-way flights from Montreal to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 8h 35m.

Which airport typically offers the quickest layover for flights from Montreal to Ontario?

Average layover duration for 1-stop one-way flights from Montreal to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 3h 08m.

Related info for your journey

Find useful and relevant information for your journey from Montreal 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?

    Ontario (ONT) is the airport you will fly into if you book a flight from Montreal to Ontario. You should not have trouble finding flights to Ontario from Montreal; the airport handles an average of 0 inbound flights from Montreal per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Ontario airport from Montreal. It is only a 4.9 km journey from Ontario (ONT) to Ontario’s city centre.

  • How long is the flight from Montreal to Ontario?

    A quick flight from Montreal to Ontario can take about 8h 40m. Delta provides one of the quickest options available for as low as C$ 681. Airlines will cover 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 Montreal to Ontario that include hotel bookings?

    Yes. In addition to deals on Montreal to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Ontario?

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

  • Can I find deals for business class flights from Montreal to Ontario?

    Yes. Cheapflights offers flight deals from Montreal 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montreal to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 Montreal to Ontario?

When you search for this flight from Montreal to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Montreal to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Montreal 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 Montreal to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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