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Cheap flights from Montreal to Ontario from C$ 380

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ONT
16 Jan — 23 Jan1
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 17 December 2025.

Thu 25/127:30 a.m.YUL - ONT
2 stops17h 44mAmerican Airlines
Tue 6/13:09 p.m.ONT - YUL
2 stops18h 15mAmerican Airlines
Deal found 15/12C$ 1,039
Mon 22/125:50 p.m.YUL - ONT
1 stop19h 11mUnited Airlines
Mon 5/111:59 p.m.ONT - YUL
1 stop7h 21mUnited Airlines
Deal found 15/12C$ 1,076
Thu 25/126:00 a.m.YUL - ONT
1 stop19h 25mUnited Airlines
Mon 5/111:59 p.m.ONT - YUL
1 stop7h 21mUnited Airlines
Deal found 15/12C$ 1,108
Fri 19/124:45 p.m.YUL - ONT
1 stop8h 40mUnited Airlines
Fri 9/16:00 a.m.ONT - YUL
1 stop7h 50mUnited Airlines
Deal found 15/12C$ 1,123
Thu 25/126:00 a.m.YUL - ONT
1 stop19h 25mUnited Airlines
Thu 1/15:05 a.m.ONT - YUL
1 stop8h 53mUnited Airlines
Deal found 16/12C$ 1,160
Tue 16/126:00 a.m.YUL - ONT
2 stops19h 49mUnited Airlines
Tue 23/1211:59 p.m.ONT - YUL
1 stop11h 01mUnited Airlines
Deal found 15/12C$ 1,164
Fri 19/124:45 p.m.YUL - ONT
1 stop8h 40mUnited Airlines
Mon 5/111:59 p.m.ONT - YUL
1 stop7h 21mUnited Airlines
Deal found 15/12C$ 1,167
Sun 21/126:00 a.m.YUL - ONT
1 stop19h 25mUnited Airlines
Tue 23/1211:59 p.m.ONT - YUL
1 stop11h 01mUnited Airlines
Deal found 16/12C$ 1,175
Mon 22/124:00 p.m.YUL - ONT
1 stop9h 14mAmerican Airlines
Sat 27/1210:40 p.m.ONT - YUL
1 stop20h 59mAmerican Airlines
Deal found 16/12C$ 1,177
Mon 22/125:50 p.m.YUL - ONT
1 stop19h 11mUnited Airlines
Sun 28/1211:59 p.m.ONT - YUL
1 stop7h 11mUnited Airlines
Deal found 15/12C$ 1,181
Fri 26/124:45 p.m.YUL - ONT
1 stop8h 40mUnited Airlines
Mon 5/111:59 p.m.ONT - YUL
1 stop7h 21mUnited Airlines
Deal found 15/12C$ 1,212

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 17 December 2025.

Round-trip from

C$ 542

One-way from

C$ 380

Popular in

March

Cheapest in

June

Average price

C$ 1,185
American Airlines
  • American Airlines
  • 20/1-4/2
  • 4 total stops
  • 38h 18m total
  • Montreal to Ontario
Search Deals
Delta
  • Delta
  • 9/3
  • 2 total stops
  • 29h 15m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 80 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 17 December 2025.
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

Tue 20/1

3:50 p.m.-9:08 a.m.

2 stops20h 18m

Ontario

Wed 4/2

6:22 a.m.-10:44 p.m.

2 stops13h 22m

C$ 550

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

7:30 p.m.-9:05 p.m.

2 stops28h 35m

Ontario

Mon 2/2

10:30 p.m.-6:37 p.m.

2 stops17h 07m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

7:30 p.m.-9:05 p.m.

2 stops28h 35m

Ontario

Tue 3/2

12:41 p.m.-1:22 p.m.

2 stops21h 41m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

9:34 a.m.-9:05 p.m.

2 stops14h 31m

Ontario

Wed 4/2

12:41 p.m.-8:44 a.m.

2 stops17h 03m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 26/1

7:30 p.m.-9:05 p.m.

2 stops28h 35m

Ontario

Thu 5/2

10:30 p.m.-6:37 p.m.

2 stops17h 07m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

7:30 p.m.-9:05 p.m.

2 stops28h 35m

Ontario

Thu 5/2

10:30 p.m.-6:37 p.m.

2 stops17h 07m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 26/1

9:34 a.m.-9:05 p.m.

2 stops14h 31m

Ontario

Sat 7/2

12:41 p.m.-6:37 p.m.

2 stops26h 56m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

2:25 p.m.-11:31 a.m.

2 stops24h 06m

Ontario

Wed 4/2

10:30 p.m.-8:44 a.m.

2 stops31h 14m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 23/1

7:30 p.m.-9:05 p.m.

2 stops28h 35m

Ontario

Mon 2/2

10:30 p.m.-6:37 p.m.

2 stops17h 07m

C$ 645

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 23/1

9:34 a.m.-11:31 a.m.

2 stops28h 57m

Ontario

Tue 3/2

10:30 p.m.-6:37 p.m.

2 stops17h 07m

C$ 645

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/12

Showing 1-10 of 22 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$ 184). Flying from Montreal to Ontario in November is currently the most expensive (average of C$ 343). 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.

What is the cheapest time of day to fly from YMQ to ONT?

Find hourly flight availability from Montreal to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 December 2025.

A simple way to save on the total cost of your ticket is to fly from Montreal to Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the evening.

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 67% 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.

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 363.

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 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 20h 18m. American Airlines provides one of the quickest options available for as low as C$ 550. 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.

  • 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$ 261. Another airline that can offer you cheap pricing is United Airlines. These flights start at 68% 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$ 184). Flying from Montreal to Ontario in November is currently the most expensive (average of C$ 343). 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

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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 17 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 426AverageC$ 547FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 431AverageC$ 929FlexibilityNo 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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