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Pierre Elliott Trudeau Intl

$180+ Cheap flights from Ontario (ONT) to Pierre Elliott Trudeau Intl (YUL)

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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
jan 3 — jan 101
sáb 1/3
sáb 1/10
1 adult, Economy
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Cheap flight deals from Ontario to Pierre Elliott Trudeau Intl

Cheapest flights from Ontario to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on dezembro 4, 2025.

This Mytrip deal was found by Cheapflights users on 12/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/612:42 amONT - YUL
2 stops20h 03mMultiple Airlines
ter 12/97:30 pmYUL - ONT
3 stops30h 22mMultiple Airlines
Deal found 12/4$897
This Air Canada deal was found by Cheapflights users on 12/4. 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.
sex 12/265:05 amONT - YUL
2 stops17h 48mAir Canada
qui 1/110:10 amYUL - ONT
2 stops13h 57mAir Canada
Deal found 12/4$900
This United Airlines deal was found by Cheapflights users on 12/4. 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.
seg 12/2911:59 pmONT - YUL
1 stop11h 01mUnited Airlines
qua 12/316:00 amYUL - ONT
1 stop19h 25mUnited Airlines
Deal found 12/4$915
This United Airlines deal was found by Cheapflights users on 12/4. 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.
dom 12/285:05 amONT - YUL
1 stop8h 53mUnited Airlines
qua 12/318:25 amYUL - ONT
2 stops15h 42mUnited Airlines
Deal found 12/4$936
This Air Canada deal was found by Cheapflights users on 12/4. 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.
sáb 12/275:05 amONT - YUL
2 stops17h 48mAir Canada
qui 1/110:10 amYUL - ONT
2 stops13h 57mAir Canada
Deal found 12/4$947
This United Airlines deal was found by Cheapflights users on 12/4. 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.
ter 12/3011:59 pmONT - YUL
1 stop11h 01mUnited Airlines
sex 1/26:00 amYUL - ONT
1 stop19h 25mUnited Airlines
Deal found 12/4$958
This Air Canada deal was found by Cheapflights users on 12/4. 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.
sex 12/265:05 amONT - YUL
2 stops17h 48mAir Canada
qua 12/316:00 amYUL - ONT
2 stops18h 07mAir Canada
Deal found 12/4$962
This United Airlines deal was found by Cheapflights users on 12/3. 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.
qua 12/176:00 amONT - YUL
2 stops12h 42mUnited Airlines
ter 12/236:00 amYUL - ONT
1 stop19h 25mUnited Airlines
Deal found 12/3$968
This American Airlines deal was found by Cheapflights users on 12/4. 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.
dom 12/2811:59 pmONT - YUL
1 stop12h 15mAmerican Airlines
dom 1/44:09 pmYUL - ONT
1 stop20h 29mAmerican Airlines
Deal found 12/4$975

Find flight deals from Ontario to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Pierre Elliott Trudeau Intl (YUL). 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 dezembro 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$536
(Delta)

One-way from

$180
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$757
Provider with most accurate pricing for Ontario-Montreal Pierre Elliott Trudeau Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Montreal Pierre Elliott Trudeau Intl flights.
Search Deals
From Ontario to Montreal Pierre Elliott Trudeau Intl
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One-way flight from Ontario to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Pierre Elliott Trudeau Intl 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 dezembro 4, 2025.
Use the filters below to find and compare flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Ontario

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

qua 2/18

6:10 am-3:05 pm

2 stops29h 55m

Montreal Pierre Elliott Trudeau Intl

ter 2/24

3:55 pm-11:37 am

2 stops22h 42m

$543

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb 1/17

3:09 pm-3:08 pm

2 stops20h 59m

Montreal Pierre Elliott Trudeau Intl

sáb 1/24

3:50 pm-9:08 am

2 stops20h 18m

$547

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

qui 1/8

12:41 pm-8:44 am

2 stops17h 03m

Montreal Pierre Elliott Trudeau Intl

qua 1/14

2:40 pm-12:16 pm

2 stops24h 36m

$619

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

dom 2/15

5:00 am-9:17 pm

2 stops13h 17m

Montreal Pierre Elliott Trudeau Intl

ter 2/24

6:00 am-8:50 pm

2 stops17h 50m

$644

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

qui 1/22

6:39 pm-2:00 pm

2 stops16h 21m

Montreal Pierre Elliott Trudeau Intl

seg 1/26

4:45 pm-12:47 pm

2 stops23h 02m

$708

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb 1/17

12:41 pm-11:50 pm

1 stop8h 09m

Montreal Pierre Elliott Trudeau Intl

sáb 1/24

7:00 am-10:51 pm

2 stops18h 51m

$712

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

dom 2/15

5:00 am-9:17 pm

2 stops13h 17m

Montreal Pierre Elliott Trudeau Intl

qua 2/25

8:20 am-9:59 pm

2 stops16h 39m

$731

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

seg 2/16

5:00 am-4:58 pm

1 stop8h 58m

Montreal Pierre Elliott Trudeau Intl

ter 2/24

6:00 am-8:50 pm

2 stops17h 50m

$741

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

ter 2/17

6:00 am-4:49 pm

1 stop7h 49m

Montreal Pierre Elliott Trudeau Intl

ter 2/24

6:00 am-8:50 pm

2 stops17h 50m

$741

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

ter 2/3

10:30 pm-6:37 pm

2 stops17h 07m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 21 results
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2
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Compare providers for flights from Ontario to Pierre Elliott Trudeau Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Pierre Elliott Trudeau Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Montreal Pierre Elliott Trudeau Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of $152). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in September is currently the most expensive (average of $224). 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 YUL?

Find hourly flight availability from Ontario to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated dezembro 4, 2025.

One of the essential ways to save on airfare from Ontario to Montreal Pierre Elliott Trudeau Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 46% on airfare.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated dezembro 4, 2025.
Read through reviews of airlines operating flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,066 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,066 reviews
United Airlines
7.4
Good
9,066 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,500 reviews
United Airlines
7.4
Good
9,066 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl?

    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 Pierre Elliott Trudeau Intl. 2 airlines have flights from Ontario to Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Ontario to Montreal Pierre Elliott Trudeau Intl should not be difficult; the airport handles an average of 0 outbound flights to Montreal Pierre Elliott Trudeau Intl per day.

  • How long is the flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

    There are many flights that can get you from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in 13h 17m. Fly via American Airlines, Delta, or United Airlines to get the fastest option. There are 2423 mi between Ontario and Montreal Pierre Elliott Trudeau Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    United Airlines, at $219, was found to be the cheapest airline from Ontario to Montreal Pierre Elliott Trudeau Intl Airport. An alternate airline flying to your destination would be Air Canada.

  • Can I find deals for flights from Ontario to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Pierre Elliott Trudeau Intl?

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

  • Can I find deals for business class flights from Ontario to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Ontario to Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of $152). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in September is currently the most expensive (average of $224). 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

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Brossard
Dorval

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Alternative routes for Ontario to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Pierre Elliott Trudeau Intl

Discover the top 2 airlines that operate flights from Ontario to Pierre Elliott Trudeau Intl. 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 dezembro 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$614FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$419Average$600FlexibilityNo cancel feeOn-time67%

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