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Cheap flights from Montreal to Ontario from C$ 366

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ONT
10 Jun — 17 Jun1
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 11 May 2026.

Sat 6/64:55 p.m.
YUL
-
ONT
1 stop8h 56m
United Airlines
Fri 12/66:30 p.m.
ONT
-
YUL
2 stops15h 39m
United Airlines
Deal found 10/5C$ 707
Thu 27/87:44 p.m.
YUL
-
ONT
2 stops17h 58m
Delta
Mon 31/812:00 p.m.
ONT
-
YUL
1 stop8h 56m
Delta
Deal found 7/5C$ 729
Fri 10/77:17 a.m.
YUL
-
ONT
1 stop18h 17m
American Airlines
Tue 21/77:14 p.m.
ONT
-
YUL
2 stops13h 29m
American Airlines
Deal found 10/5C$ 755
Sat 6/612:40 p.m.
YUL
-
ONT
1 stop12h 08m
Delta
Fri 12/610:00 p.m.
ONT
-
YUL
1 stop10h 43m
Delta
Deal found 10/5C$ 762
Sat 23/512:40 p.m.
YUL
-
ONT
1 stop12h 08m
Delta
Fri 5/610:00 p.m.
ONT
-
YUL
1 stop10h 35m
Delta
Deal found 7/5C$ 764
Sat 29/812:45 p.m.
YUL
-
ONT
1 stop12h 19m
American Airlines
Sun 6/911:59 p.m.
ONT
-
YUL
1 stop11h 45m
American Airlines
Deal found 7/5C$ 775
Mon 8/66:35 p.m.
YUL
-
ONT
2 stops30h 20m
United Airlines
Mon 15/66:30 p.m.
ONT
-
YUL
2 stops17h 10m
United Airlines
Deal found 10/5C$ 782

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 11 May 2026.

Round-trip from

C$ 707

One-way from

C$ 366

Popular in

December

Cheapest in

September

Average price

C$ 580
United Airlines
  • United Airlines
  • 6/6-12/6
  • 3 total stops
  • 24h 35m total
  • Montreal to Ontario
Search Deals
4/8
  • 4/8
  • 2 total stops
  • 29h 43m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 37 potential increase over avg. RT price).
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 May 2026
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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 11 May 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 - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

2:29 p.m.-10:42 a.m.

2 stops23h 13m

Ontario

Mon 31/8

12:00 p.m.-11:56 p.m.

1 stop8h 56m

C$ 730

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

12:40 p.m.-9:48 p.m.

1 stop12h 08m

Ontario

Fri 12/6

10:00 p.m.-11:43 a.m.

1 stop10h 43m

C$ 762

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 22/10

12:45 p.m.-6:18 p.m.

1 stop8h 33m

Ontario

Mon 26/10

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

1 stop9h 45m

C$ 762

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

12:49 p.m.-10:45 p.m.

2 stops12h 56m

Ontario

Mon 10/8

11:56 a.m.-11:59 p.m.

1 stop9h 03m

C$ 764

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

12:40 p.m.-10:45 p.m.

2 stops13h 05m

Ontario

Sat 30/5

10:00 p.m.-11:35 a.m.

1 stop10h 35m

C$ 764

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

12:40 p.m.-6:36 p.m.

1 stop8h 56m

Ontario

Fri 5/6

10:00 p.m.-11:35 a.m.

1 stop10h 35m

C$ 764

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

9:45 a.m.-8:46 p.m.

2 stops14h 01m

Ontario

Fri 12/6

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

2 stops20h 00m

C$ 785

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

12:47 p.m.-11:49 p.m.

2 stops14h 02m

Ontario

Tue 28/7

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

1 stop9h 04m

C$ 818

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

8:40 a.m.-10:51 p.m.

1 stop17h 11m

Ontario

Sun 2/8

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

1 stop7h 28m

C$ 838
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

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

1 stop8h 29m

Ontario

Sun 23/8

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

1 stop7h 28m

C$ 838

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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.

Chicago (ORD) – chosen by Cheapflights users on 40% 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$ 690.

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 1h 11m.

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 14h 01m. Delta provides one of the quickest options available for as low as C$ 785. 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

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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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