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$204+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YMQ
Aug 21 — Aug 281
Fri 8/21
Fri 8/28
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 July 22, 2026.

This Delta deal was found by Cheapflights users on 7/18. 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.
Tue 8/1112:00 pm
ONT
-
YUL
1 stop8h 52m
Delta
Tue 8/1812:47 pm
YUL
-
ONT
2 stops13h 47m
Delta
Deal found 7/18$491
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Tue 8/411:59 pm
ONT
-
YUL
1 stop11h 45m
American Airlines
Thu 8/273:45 pm
YUL
-
ONT
1 stop20h 49m
American Airlines
Deal found 7/18$506
This Delta deal was found by Cheapflights users on 7/18. 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.
Mon 8/1010:00 pm
ONT
-
YUL
1 stop10h 39m
Delta
Sat 8/157:00 am
YUL
-
ONT
2 stops18h 23m
Delta
Deal found 7/18$516
This Delta deal was found by Cheapflights users on 7/18. 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.
Tue 8/47:05 am
ONT
-
YUL
2 stops13h 25m
Delta
Thu 8/279:30 am
YUL
-
ONT
2 stops15h 22m
Delta
Deal found 7/18$521
This Delta deal was found by Cheapflights users on 7/18. 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.
Mon 8/1010:00 pm
ONT
-
YUL
1 stop10h 39m
Delta
Fri 8/1412:44 pm
YUL
-
ONT
1 stop12h 08m
Delta
Deal found 7/18$531
This Air Canada deal was found by Cheapflights users on 7/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:00 am
ONT
-
YUL
1 stop9h 13m
Air Canada
Wed 8/128:15 am
YUL
-
ONT
1 stop7h 35m
Air Canada
Deal found 7/17$538
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Sun 8/234:07 pm
ONT
-
YUL
2 stops16h 36m
American Airlines
Sun 9/67:29 am
YUL
-
ONT
2 stops14h 46m
American Airlines
Deal found 7/19$546
This American Airlines deal was found by Cheapflights users on 7/19. 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 8/812:33 pm
ONT
-
YUL
1 stop23h 11m
American Airlines
Sat 8/153:45 pm
YUL
-
ONT
1 stop20h 49m
American Airlines
Deal found 7/19$551
This Kissandfly.com deal was found by Cheapflights users on 7/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:00 pm
ONT
-
YUL
1 stop10h 39m
Multiple Airlines
Tue 8/183:45 pm
YUL
-
ONT
1 stop10h 14m
Multiple Airlines
Deal found 7/20$555
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:05 pm
ONT
-
YUL
2 stops27h 32m
Delta
Sat 12/512:45 pm
YUL
-
ONT
1 stop8h 33m
Delta
Deal found 7/20$557
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Fri 9/42:27 pm
ONT
-
YUL
1 stop21h 17m
American Airlines
Wed 9/97:50 am
YUL
-
ONT
2 stops13h 27m
American Airlines
Deal found 7/20$558

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 July 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$491
(Delta)

One-way from

$204
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$776
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. 20% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 22, 2026.
Use the filters below to find and compare flights from Ontario to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 11/24

5:05 pm-11:37 pm

2 stops27h 32m

Montreal Pierre Elliott Trudeau Intl

Sat 12/5

12:45 pm-6:18 pm

1 stop8h 33m

$557

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 10/16

11:15 pm-1:40 pm

1 stop11h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

7:00 am-10:02 pm

2 stops18h 02m

$568

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 8/30

9:43 am-11:40 pm

2 stops10h 57m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

7:00 am-10:23 pm

2 stops18h 23m

$574

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 8/19

1:56 pm-8:16 am

1 stop15h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 8/26

11:23 am-8:53 pm

2 stops12h 30m

$597

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 10/31

6:00 am-2:51 pm

2 stops29h 51m

Montreal Pierre Elliott Trudeau Intl

Wed 11/4

9:15 am-9:50 pm

2 stops15h 35m

$602

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 8/8

6:10 am-10:06 pm

2 stops12h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 8/12

4:55 pm-10:35 pm

1 stop8h 40m

$637

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 9/12

7:00 am-5:30 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 9/18

4:55 pm-10:59 pm

1 stop9h 04m

$638

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 8/13

7:13 pm-8:16 am

1 stop10h 03m

Montreal Pierre Elliott Trudeau Intl

Mon 8/17

4:55 pm-10:35 pm

1 stop8h 40m

$668

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 10/13

7:00 am-5:30 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 10/21

4:55 pm-10:49 pm

1 stop8h 54m

$688
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 10/14

5:00 am-3:29 pm

1 stop7h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 10/19

4:30 pm-8:58 pm

1 stop7h 28m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 20 resultsSorted by cheapest first
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

No data available for this route at this time. Please check back soon.

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. 0 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 Delta and American Airlines fly from Ontario to Montreal in about 8h 52m. The time it takes to get you to your destination can typically vary by up to 2h 53m. 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.

  • 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.

See more FAQs

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