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$176+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YMQ
mar. 26 — abr. 21
jue. 3/26
jue. 4/2
1 adult, Economy
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Cheap 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 febrero 24, 2026.

This American Airlines deal was found by Cheapflights users on 2/23. 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.
vie. 4/311:58 pm
ONT
-
YUL
2 stops10h 47m
American Airlines
jue. 4/97:29 am
YUL
-
ONT
1 stop16h 38m
American Airlines
Deal found 2/23$608
This American Airlines deal was found by Cheapflights users on 2/23. 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.
jue. 4/910:26 pm
ONT
-
YUL
1 stop21h 32m
American Airlines
jue. 4/163:45 pm
YUL
-
ONT
1 stop11h 01m
American Airlines
Deal found 2/23$627
This United Airlines deal was found by Cheapflights users on 2/23. 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.
mar. 3/2411:59 pm
ONT
-
YUL
1 stop12h 58m
United Airlines
lun. 3/306:00 pm
YUL
-
ONT
1 stop18h 56m
United Airlines
Deal found 2/23$659
This United Airlines deal was found by Cheapflights users on 2/20. 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.
jue. 4/97:00 am
ONT
-
YUL
1 stop25h 51m
United Airlines
lun. 4/133:30 pm
YUL
-
ONT
2 stops24h 08m
United Airlines
Deal found 2/20$669
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 9/164:59 pm
ONT
-
YUL
2 stops15h 16m
American Airlines
mar. 9/2210:35 am
YUL
-
ONT
2 stops14h 15m
American Airlines
Deal found 2/20$670
This Air Canada deal was found by Cheapflights users on 2/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/96:49 pm
ONT
-
YUL
1 stop18h 58m
Multiple Airlines
lun. 4/136:00 pm
YUL
-
ONT
1 stop18h 56m
Multiple Airlines
Deal found 2/23$671
This United Airlines deal was found by Cheapflights users on 2/22. 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.
mar. 4/147:00 am
ONT
-
YUL
1 stop11h 26m
United Airlines
lun. 4/206:30 pm
YUL
-
ONT
1 stop30h 56m
United Airlines
Deal found 2/22$675
This Delta deal was found by Cheapflights users on 2/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/310:25 pm
ONT
-
YUL
1 stop10h 12m
Delta
jue. 4/912:42 pm
YUL
-
ONT
1 stop11h 18m
Delta
Deal found 2/23$680

Find 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 febrero 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$608
(American Airlines)

One-way from

$176
(Trip.com)

Popular in

January

Cheapest in

March

Average price

$410
Provider with most accurate pricing for Ontario-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Montreal (YMQ) flights.
Search Deals
From Ontario to Montreal (YMQ)
Search Deals
One-way flight from Ontario to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 febrero 24, 2026.
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

mar. 3/24

11:59 pm-3:57 pm

1 stop12h 58m

Montreal Pierre Elliott Trudeau Intl

lun. 3/30

6:00 pm-9:56 am

1 stop18h 56m

$659

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jue. 4/9

1:34 pm-11:51 am

2 stops19h 17m

Montreal Pierre Elliott Trudeau Intl

lun. 4/13

3:30 pm-12:38 pm

2 stops24h 08m

$674

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mié. 4/15

7:00 am-10:40 am

1 stop24h 40m

Montreal Pierre Elliott Trudeau Intl

lun. 4/20

6:30 pm-10:26 pm

1 stop30h 56m

$675

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jue. 3/12

11:59 pm-7:32 am

2 stops28h 33m

Montreal Pierre Elliott Trudeau Intl

lun. 3/16

8:00 pm-10:18 pm

2 stops29h 18m

$697

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

dom. 4/19

10:15 pm-11:38 am

1 stop10h 23m

Montreal Pierre Elliott Trudeau Intl

vie. 4/24

12:42 pm-9:00 pm

1 stop11h 18m

$708

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mié. 4/1

7:00 am-5:30 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

sáb. 4/4

4:55 pm-10:26 pm

1 stop8h 31m

$724

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 5/9

7:00 am-5:30 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

vie. 5/15

4:55 pm-10:30 pm

1 stop8h 35m

$724

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

vie. 4/24

6:45 pm-4:47 pm

1 stop19h 02m

Montreal Pierre Elliott Trudeau Intl

vie. 5/1

8:10 am-10:59 pm

1 stop17h 49m

$732

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

dom. 4/5

5:10 am-4:52 pm

1 stop8h 42m

Montreal Pierre Elliott Trudeau Intl

mar. 4/7

4:55 pm-10:26 pm

1 stop8h 31m

$758

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mié. 3/25

12:57 pm-8:30 am

2 stops16h 33m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 20 results
1
2
  • Most accurate provider: When it comes to deals on Ontario-Montreal flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Montreal flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Montreal flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Montreal flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, February is the cheapest month in which you can book a flight from Ontario to Montreal (average of $150). Flying from Ontario to Montreal in January is currently the most expensive (average of $281). 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 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. 2 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 United Airlines fly from Ontario to Montreal in about 12h 58m. The time it takes to get you to your destination can typically vary by up to . Ontario and Montreal are separated by a distance of 2423 mi.

  • 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. Another option worth looking into is Air Canada, starting at $419 round trip.

  • 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, February is the cheapest month in which you can book a flight from Ontario to Montreal (average of $150). Flying from Ontario to Montreal in January is currently the most expensive (average of $281). 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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Top 2 airlines flying from Ontario to Montreal

Discover the top 2 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 febrero 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$614FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$419Average$600FlexibilityNo cancel feeOn-time67%

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