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$154+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YMQ
apr. 9 — apr. 161
do 4/9
do 4/16
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 maart 10, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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.
wo 4/224:52 pm
ONT
-
YUL
2 stops15h 52m
American Airlines
wo 4/2912:30 pm
YUL
-
ONT
2 stops14h 16m
American Airlines
Deal found 3/9$542
This Delta deal was found by Cheapflights users on 3/10. 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.
di 4/2110:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
vr 5/19:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Deal found 3/10$576
This Delta deal was found by Cheapflights users on 3/10. 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.
di 4/2110:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
di 4/289:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Deal found 3/10$622
This United Airlines deal was found by Cheapflights users on 3/5. 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.
ma 3/2311:59 pm
ONT
-
YUL
1 stop18h 18m
United Airlines
wo 4/19:45 am
YUL
-
ONT
1 stop15h 46m
United Airlines
Deal found 3/5$627
This American Airlines deal was found by Cheapflights users on 3/8. 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.
di 4/74:52 pm
ONT
-
YUL
2 stops16h 26m
American Airlines
di 4/147:45 am
YUL
-
ONT
2 stops13h 39m
American Airlines
Deal found 3/8$628
This American Airlines deal was found by Cheapflights users on 3/6. 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.
ma 4/2011:29 pm
ONT
-
YUL
1 stop20h 29m
American Airlines
ma 4/273:45 pm
YUL
-
ONT
1 stop9h 51m
American Airlines
Deal found 3/6$629
This American Airlines deal was found by Cheapflights users on 3/6. 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.
vr 4/310:36 pm
ONT
-
YUL
1 stop21h 12m
American Airlines
vr 4/103:45 pm
YUL
-
ONT
1 stop21h 19m
American Airlines
Deal found 3/6$635
This United Airlines deal was found by Cheapflights users on 3/5. 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.
ma 3/2311:59 pm
ONT
-
YUL
1 stop18h 18m
United Airlines
di 3/3111:23 am
YUL
-
ONT
2 stops13h 27m
United Airlines
Deal found 3/5$636
This Delta deal was found by Cheapflights users on 3/9. 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.
di 4/2110:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
wo 4/2912:50 pm
YUL
-
ONT
1 stop11h 10m
Delta
Deal found 3/9$640
This United Airlines deal was found by Cheapflights users on 3/5. 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.
di 3/245:15 am
ONT
-
YUL
2 stops13h 02m
United Airlines
ma 3/3011:23 am
YUL
-
ONT
2 stops14h 22m
United Airlines
Deal found 3/5$642

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 maart 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$542
(American Airlines)

One-way from

$154
(Kiwi.com)
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

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 maart 10, 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

wo 4/15

5:10 am-10:06 pm

2 stops13h 56m

Montreal Pierre Elliott Trudeau Intl

za 4/18

11:23 am-8:36 pm

2 stops12h 13m

$642

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

di 4/21

10:15 pm-6:51 pm

2 stops17h 36m

Montreal Pierre Elliott Trudeau Intl

di 4/28

9:30 am-6:33 pm

2 stops12h 03m

$645

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

ma 3/23

10:25 pm-6:35 pm

2 stops17h 10m

Montreal Pierre Elliott Trudeau Intl

di 3/31

12:42 pm-11:51 pm

2 stops14h 09m

$663

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

do 4/9

5:10 am-9:26 pm

2 stops13h 16m

Montreal Pierre Elliott Trudeau Intl

ma 4/13

9:45 am-10:31 pm

1 stop15h 46m

$714

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

vr 3/20

1:20 pm-11:40 pm

2 stops31h 20m

Montreal Pierre Elliott Trudeau Intl

di 3/31

7:00 am-11:51 pm

2 stops19h 51m

$737
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

do 4/2

7:00 am-5:30 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

wo 4/8

5:00 pm-10:31 pm

1 stop8h 31m

$746

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

do 5/14

6:00 am-8:00 pm

1 stop11h 00m

Montreal Pierre Elliott Trudeau Intl

wo 5/20

1:15 pm-10:35 pm

1 stop12h 20m

$747
Cheapest one-way
Quickest one-way

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

di 3/31

7:00 am-5:30 pm

1 stop7h 30m

$285

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

vr 4/3

5:10 am-10:06 pm

2 stops13h 56m

$300

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

za 4/4

5:10 am-10:06 pm

2 stops13h 56m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 16 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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Montreal (average of $180). 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 and Delta fly from Ontario to Montreal in about 11h 26m. The time it takes to get you to your destination can typically vary by up to 6h 10m. 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. 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, August is the cheapest month in which you can book a flight from Ontario to Montreal (average of $180). 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

Browse thousands of different options on Cheapflights for your next trip

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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 maart 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$614FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$419Average$600FlexibilityNo cancel feeOn-time67%

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