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Cheap flights from Montreal to Ontario from C$ 352

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ONT
28 Feb — 7 Mar1
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 29 January 2026.

Thu 12/39:20 a.m.
YUL
-
ONT
2 stops14h 40m
Delta
Tue 24/310:25 p.m.
ONT
-
YUL
2 stops10h 34m
Delta
Deal found 26/1C$ 787
Sat 19/94:45 p.m.
YUL
-
ONT
1 stop8h 41m
United Airlines
Sat 26/96:53 p.m.
ONT
-
YUL
1 stop10h 22m
United Airlines
Deal found 28/1C$ 789
Thu 5/312:30 p.m.
YUL
-
ONT
1 stop11h 35m
Delta
Thu 12/312:57 p.m.
ONT
-
YUL
1 stop7h 48m
Delta
Deal found 28/1C$ 793
Thu 5/36:00 a.m.
YUL
-
ONT
1 stop19h 18m
United Airlines
Wed 11/31:50 p.m.
ONT
-
YUL
2 stops22h 26m
United Airlines
Deal found 28/1C$ 794
Fri 13/36:00 a.m.
YUL
-
ONT
1 stop19h 18m
United Airlines
Sat 21/311:59 p.m.
ONT
-
YUL
1 stop18h 18m
United Airlines
Deal found 27/1C$ 797
Mon 9/34:45 p.m.
YUL
-
ONT
1 stop8h 33m
United Airlines
Mon 16/311:59 p.m.
ONT
-
YUL
1 stop11h 01m
United Airlines
Deal found 28/1C$ 798
Mon 4/54:55 p.m.
YUL
-
ONT
1 stop8h 35m
United Airlines
Fri 8/57:00 a.m.
ONT
-
YUL
1 stop11h 26m
United Airlines
Deal found 28/1C$ 809
Sat 14/212:30 p.m.
YUL
-
ONT
1 stop11h 35m
Delta
Wed 18/210:20 p.m.
ONT
-
YUL
1 stop10h 05m
Delta
Deal found 28/1C$ 817
Wed 11/29:34 a.m.
YUL
-
ONT
2 stops14h 31m
Delta
Sun 15/210:20 p.m.
ONT
-
YUL
1 stop10h 05m
Delta
Deal found 28/1C$ 823
Thu 5/312:30 p.m.
YUL
-
ONT
1 stop11h 35m
Delta
Wed 11/312:57 p.m.
ONT
-
YUL
1 stop7h 48m
Delta
Deal found 27/1C$ 824

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 29 January 2026.

Round-trip from

C$ 787

One-way from

C$ 352

Popular in

March

Cheapest in

June

Average price

C$ 529
Delta
  • Delta
  • 12/3-25/3
  • 2 total stops
  • 19h 06m total
  • Montreal to Ontario
Search Deals
5/4
  • 5/4
  • 2 total stops
  • 28h 19m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 79 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 29 January 2026.
Use the filters below to find and compare flights from Montreal to Ontario that are best for you.

Fly from

Montreal

Fly to

Ontario

Route

Depart

Return

Price

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

12:42 p.m.-9:00 p.m.

1 stop11h 18m

Ontario

Wed 25/3

12:57 p.m.-11:45 p.m.

1 stop7h 48m

C$ 787

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

12:42 p.m.-9:00 p.m.

1 stop11h 18m

Ontario

Tue 24/3

10:25 p.m.-11:59 a.m.

2 stops10h 34m

C$ 787

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 5/3

12:30 p.m.-9:05 p.m.

1 stop11h 35m

Ontario

Thu 12/3

12:57 p.m.-11:45 p.m.

1 stop7h 48m

C$ 793

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 5/3

7:00 a.m.-10:36 p.m.

2 stops18h 36m

Ontario

Wed 11/3

1:50 p.m.-3:16 p.m.

2 stops22h 26m

C$ 794

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 13/3

6:00 a.m.-10:18 p.m.

1 stop19h 18m

Ontario

Sat 21/3

11:59 p.m.-9:17 p.m.

1 stop18h 18m

C$ 797

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

4:45 p.m.-10:18 p.m.

1 stop8h 33m

Ontario

Mon 16/3

11:59 p.m.-2:00 p.m.

1 stop11h 01m

C$ 798

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

4:55 p.m.-10:26 p.m.

1 stop8h 31m

Ontario

Thu 30/4

7:00 a.m.-9:26 p.m.

1 stop11h 26m

C$ 798

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

6:45 a.m.-8:04 a.m.

2 stops28h 19m

C$ 352

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

9:20 a.m.-9:00 p.m.

2 stops14h 40m

C$ 400

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

9:45 a.m.-8:36 p.m.

2 stops13h 51m

C$ 434

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 17 results
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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 is the cheapest month to book a flight from Montreal to Ontario?

Currently, April is the cheapest month in which you can book a flight from Montreal to Ontario (average of C$ 182). Flying from Montreal to Ontario in November is currently the most expensive (average of C$ 346). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 2 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 11h 18m. Delta provides one of the quickest options available for as low as C$ 787. Airlines will cover a distance of 3899 km.

  • What are the cheapest airlines flying from Montreal to Ontario round-trip?

    Cheapflights users have booked flights from Montreal to Ontario round-trip from C$ 258. Another airline that can offer you cheap pricing is United Airlines. These flights start at 69% lower than the current average price 3 months from now.

  • 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.

  • What is the cheapest month to book a flight from Montreal to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Montreal to Ontario (average of C$ 182). Flying from Montreal to Ontario in November is currently the most expensive (average of C$ 346). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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Top 2 airlines flying from Montreal to Ontario

Discover the top 2 airlines that operate flights from Montreal to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 258AverageC$ 539FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 425AverageC$ 916FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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