HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montreal

$134+ Cheap flights from Ontario (ONT) to Montreal (YMQ)

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YMQ
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Montreal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Montreal (YMQ). 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 September 17, 2025.

Round-trip from

$463
(American Airlines)

One-way from

$134
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$406
From Ontario to Montreal (YMQ)
Search Deals
One-way flight from Ontario to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ontario to Montreal

Cheapest flights from Ontario to Montreal
Explore the most affordable flight options available from Ontario to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:49 pmONT - YUL
2 stops17h 26mAmerican Airlines
Sat 11/87:14 amYUL - ONT
2 stops14h 06mAmerican Airlines
Deal found 9/17$463
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:53 amONT - YUL
2 stops13h 29mMultiple Airlines
Thu 11/65:25 pmYUL - ONT
1 stop9h 25mMultiple Airlines
Deal found 9/15$605
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:38 pmONT - YUL
1 stop20h 11mUnited Airlines
Sat 11/82:13 pmYUL - ONT
2 stops25h 24mUnited Airlines
Deal found 9/16$660
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:49 pmONT - YUL
2 stops16h 35mAmerican Airlines
Thu 11/67:30 amYUL - ONT
2 stops13h 50mAmerican Airlines
Deal found 9/15$722
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:49 pmONT - YUL
2 stops16h 35mAmerican Airlines
Sun 10/123:44 pmYUL - ONT
1 stop11h 15mAmerican Airlines
Deal found 9/17$732
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/111:53 pmONT - YUL
1 stop24h 07mUnited Airlines
Tue 10/146:15 amYUL - ONT
1 stop19h 15mUnited Airlines
Deal found 9/16$734
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:36 amONT - YUL
1 stop28h 24mUnited Airlines
Fri 10/176:30 pmYUL - ONT
1 stop26h 10mUnited Airlines
Deal found 9/15$747

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Montreal 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 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Ontario to Montreal that are best for you.

Fly from

Ontario

Fly to

Montreal

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/1

4:49 pm-1:15 pm

2 stops17h 26m

Montreal Pierre Elliott Trudeau Intl

Sat 11/8

7:14 am-6:20 pm

2 stops14h 06m

$463

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 2/20

10:38 am-3:20 pm

2 stops25h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

2:25 pm-8:42 am

2 stops21h 17m

$621

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/1

6:38 pm-5:49 pm

1 stop20h 11m

Montreal Pierre Elliott Trudeau Intl

Sat 11/8

5:50 pm-5:34 pm

1 stop26h 44m

$671

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 10/30

6:38 pm-4:49 pm

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

5:25 pm-8:44 pm

1 stop30h 19m

$690

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 2/20

1:00 pm-4:58 pm

1 stop24h 58m

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

8:05 am-10:57 pm

2 stops17h 52m

$729

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 10/11

1:53 pm-5:00 pm

1 stop24h 07m

Montreal Pierre Elliott Trudeau Intl

Tue 10/14

6:15 am-10:30 pm

1 stop19h 15m

$734

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 10/18

7:05 am-8:37 am

2 stops22h 32m

$252

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 10/8

1:53 pm-8:16 am

1 stop15h 23m

$299

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 10/18

1:53 pm-8:16 am

1 stop15h 23m

$299

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 10/15

1:53 pm-8:16 am

1 stop15h 23m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 14 results
1
2

Best time to book a flight from Ontario to Montreal

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Montreal (average of $270). Flying from Ontario to Montreal in July is currently the most expensive (average of $409). 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 ONT to YMQ?

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

A simple way to save on the total cost of your ticket is to fly from Ontario to Montreal at noon. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated September 17, 2025.
See what other customers who have flown with Air Canada from Ontario to Montreal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2024

DEL - YUL

They wouldn't let us check a carry on bag, said it was too small and they only take the large bags. It resulted in us having several items removed from the bag because we wanted to check it. Also 1 locked checked bag was opened and prescription medication went missing.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2024

DEL - YUL

They wouldn't let us check a carry on bag, said it was too small and they only take the large bags. It resulted in us having several items removed from the bag because we wanted to check it. Also 1 locked checked bag was opened and prescription medication went missing.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Montreal. 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 from for flights from Ontario to Montreal?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Montreal. 3 airlines have flights from Ontario to Montreal on a regular basis. Booking flights from Ontario to Montreal should not be difficult; the airport handles an average of 0 outbound flights to Montreal per day.

  • How long is the flight from Ontario to Montreal?

    Airlines like American Airlines and United Airlines fly from Ontario to Montreal in about 17h 26m. The time it takes to get you to your destination can typically vary by up to 2h 45m. Ontario and Montreal are separated by a distance of 2423 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on United Airlines is currently your cheapest option to Montreal, with prices starting at $219. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at $347 and $376, respectively.

  • Can I find deals for flights from Ontario to Montreal that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Montreal 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 Ontario to Montreal?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Montreal (average of $270). Flying from Ontario to Montreal in July is currently the most expensive (average of $409). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
Burbank to Pierre Elliott Trudeau Intl flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Los Angeles to Québec City flights
Long Beach to Pierre Elliott Trudeau Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
San Francisco to Québec City flights
Los Angeles to Ottawa flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Ontario to Ottawa flights
Las Vegas to Ottawa flights
San Francisco to Ottawa flights
San Diego to Québec City flights
Oakland to Pierre Elliott Trudeau Intl flights
Ontario to Québec City flights
Reno to Pierre Elliott Trudeau Intl flights
Fresno to Pierre Elliott Trudeau Intl flights
Sacramento to Ottawa flights
San Jose to Québec City flights
Sacramento to Québec City flights
San Jose to Ottawa flights
Palm Springs to Pierre Elliott Trudeau Intl flights
Santa Ana to Ottawa flights
Santa Ana to Québec City flights
Palm Springs to Ottawa flights
San Diego to Ottawa flights
Palm Springs to Québec City flights
Burbank to Ottawa flights
Santa Barbara to Pierre Elliott Trudeau Intl flights
Monterey to Pierre Elliott Trudeau Intl flights
Santa Rosa to Pierre Elliott Trudeau Intl flights
Medford to Pierre Elliott Trudeau Intl flights
Burbank to Québec City flights
Monterey to Québec City flights
Reno to Ottawa flights
Oakland to Québec City flights
Santa Rosa to Ottawa flights
Oakland to Ottawa flights
Long Beach to Ottawa flights
Santa Rosa to Québec City flights
Medford to Ottawa flights
San Francisco to Gaspé flights

Top 3 airlines flying from Ontario to Montreal

Discover the top 3 airlines that operate flights from Ontario to Montreal. 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$533FlexibilityNo cancel feeOn-time69%
DeltaCheapest$347Average$470FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$376Average$600FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.