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Cheap flights from Montreal to Ontario from C$ 263

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ONT
4 May — 11 May1
1 adult

Cheap 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 April 2025.

Round-trip from

C$ 445

One-way from

C$ 263

Popular in

March

Cheapest in

October

Average price

C$ 834
Air Canada
  • Air Canada
  • 26/5-10/6
  • 2 total stops
  • 31h 15m total
  • Montreal to Ontario
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American Airlines
  • American Airlines
  • 12/5
  • 1 total stop
  • 9h 14m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 91 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Montreal to Ontario

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 April 2025.

Mon 26/58:05 a.m.YUL - ONT
1 stop15h 59mAir Canada
Wed 4/61:33 p.m.ONT - YUL
1 stop6h 53mAir Canada
Deal found 28/4C$ 445
Tue 27/59:45 a.m.YUL - ONT
2 stops10h 40mUnited Airlines
Sat 7/66:34 p.m.ONT - YUL
2 stops16h 21mUnited Airlines
Deal found 28/4C$ 446
Tue 27/57:29 a.m.YUL - ONT
1 stop16h 36mAmerican Airlines
Sun 8/611:59 p.m.ONT - YUL
2 stops19h 45mAmerican Airlines
Deal found 28/4C$ 459
Thu 29/512:44 p.m.YUL - ONT
1 stop12h 45mDelta
Sat 7/612:18 p.m.ONT - YUL
1 stop8h 36mDelta
Deal found 28/4C$ 484
Mon 28/42:30 p.m.YUL - ONT
1 stop9h 29mWestJet Encore
Fri 2/52:44 p.m.ONT - YUL
1 stop21h 11mWestJet Encore
Deal found 27/4C$ 1,020
Thu 25/912:55 p.m.YUL - ONT
2 stops12h 01mMultiple Airlines
Sun 5/106:38 p.m.ONT - YUL
1 stop17h 48mMultiple Airlines
Deal found 28/4C$ 1,394

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 April 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

Mon 26/5

8:05 a.m.-9:04 p.m.

1 stop15h 59m

Ontario

Tue 10/6

5:10 a.m.-11:26 p.m.

1 stop15h 16m

C$ 445

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 27/5

9:45 a.m.-5:25 p.m.

2 stops10h 40m

Ontario

Sat 7/6

6:34 p.m.-1:55 p.m.

2 stops16h 21m

C$ 446

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 27/5

7:29 a.m.-9:05 p.m.

1 stop16h 36m

Ontario

Fri 13/6

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

2 stops19h 45m

C$ 459

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 29/5

12:44 p.m.-10:29 p.m.

1 stop12h 45m

Ontario

Sat 7/6

12:18 p.m.-11:54 p.m.

1 stop8h 36m

C$ 484

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 25/9

12:55 p.m.-9:56 p.m.

2 stops12h 01m

Ontario

Sun 5/10

6:38 p.m.-3:26 p.m.

1 stop17h 48m

C$ 1,394

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 12/5

3:44 p.m.-9:58 p.m.

1 stop9h 14m

C$ 263

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 15/5

4:05 p.m.-8:53 p.m.

1 stop7h 48m

C$ 265

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 4/6

6:45 a.m.-8:51 p.m.

2 stops17h 06m

C$ 269

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 15/5

8:05 a.m.-8:53 p.m.

1 stop15h 48m

C$ 285

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 26/6

6:45 a.m.-7:54 p.m.

2 stops16h 09m

C$ 346

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 11 results
1
2

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, September is the cheapest month in which you can book a flight from Montreal to Ontario (average of C$ 290). Flying from Montreal to Ontario in May is currently the most expensive (average of C$ 574). 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 29 April 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 29% on your trip compared to booking a flight at noon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 29 April 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Montreal to Ontario by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,240 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 3 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.

  • 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$ 445. Other airlines that can offer you cheap pricing are United Airlines, from C$ 446, and American Airlines, from C$ 459. These flights start at 35% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal to Ontario one-way?

    C$ 263 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 265 and C$ 285, respectively.

  • 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, September is the cheapest month in which you can book a flight from Montreal to Ontario (average of C$ 290). Flying from Montreal to Ontario in May is currently the most expensive (average of C$ 574). 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 3 airlines flying from Montreal to Ontario

Discover the top 3 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 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 387AverageC$ 434FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 397AverageC$ 751FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 420AverageC$ 430FlexibilityNo cancel feeOn-timeN/A
Search Delta 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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