HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pierre Elliott Trudeau Intl

$121+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YUL
févr. 1 — févr. 81
dim. 2/1
dim. 2/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Pierre Elliott Trudeau Intl 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 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 janvier 2, 2026.

This United Airlines deal was found by Cheapflights users on 12/30. 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.
mer. 12/3111:59 pmONT - YUL
1 stop12h 58mUnited Airlines
lun. 1/54:45 pmYUL - ONT
1 stop8h 40mUnited Airlines
Deal found 12/30$1,298
This American Airlines deal was found by Cheapflights users on 12/31. 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.
mer. 12/314:47 pmONT - YUL
2 stops19h 37mAmerican Airlines
dim. 1/43:50 pmYUL - ONT
2 stops10h 56mAmerican Airlines
Deal found 12/31$1,446
This United Airlines deal was found by Cheapflights users on 12/31. 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.
mer. 12/3111:59 pmONT - YUL
1 stop15h 41mUnited Airlines
dim. 1/45:25 pmYUL - ONT
2 stops27h 18mUnited Airlines
Deal found 12/31$1,614
This Air Canada deal was found by Cheapflights users on 12/31. 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.
mer. 12/3111:59 pmONT - YUL
2 stops10h 23mMultiple Airlines
dim. 1/41:10 pmYUL - ONT
3 stops31h 33mMultiple Airlines
Deal found 12/31$2,318

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 janvier 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$584
(Delta)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$507
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
Search Deals
One-way flight from Ontario to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($126 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 January 2026
Search Deals

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 janvier 2, 2026.
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

sam. 1/17

10:30 pm-6:37 pm

2 stops17h 07m

Montreal Pierre Elliott Trudeau Intl

sam. 1/24

2:25 pm-11:31 am

2 stops24h 06m

$584

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jeu. 1/22

10:30 pm-3:56 pm

2 stops14h 26m

Montreal Pierre Elliott Trudeau Intl

jeu. 1/29

9:34 am-9:05 pm

2 stops14h 31m

$652

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jeu. 4/9

10:25 pm-11:37 am

1 stop10h 12m

Montreal Pierre Elliott Trudeau Intl

lun. 4/13

9:30 am-8:58 pm

2 stops14h 28m

$676

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sam. 1/31

1:24 pm-2:07 pm

2 stops21h 43m

Montreal Pierre Elliott Trudeau Intl

mer. 2/4

5:30 pm-9:58 pm

2 stops31h 28m

$712

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jeu. 2/12

6:15 am-10:44 pm

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

jeu. 2/19

7:30 am-6:15 pm

2 stops13h 45m

$716

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jeu. 4/9

2:08 pm-2:44 pm

1 stop21h 36m

Montreal Pierre Elliott Trudeau Intl

lun. 4/13

3:45 pm-11:46 pm

1 stop11h 01m

$742

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mer. 3/25

11:59 pm-9:17 pm

1 stop18h 18m

Montreal Pierre Elliott Trudeau Intl

sam. 3/28

6:00 am-10:25 pm

1 stop19h 25m

$742

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

jeu. 3/12

10:37 pm-1:45 pm

1 stop12h 08m

Montreal Pierre Elliott Trudeau Intl

lun. 3/16

7:30 am-10:07 pm

2 stops17h 37m

$742

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mar. 1/27

3:07 pm-12:43 am

3 stops30h 36m

$121

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

lun. 1/26

8:05 pm-12:43 am

3 stops25h 38m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 19 results
1
2

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 January.
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.

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 janvier 2, 2026.
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
9,132 reviews

Overall

7.4

Crew

8.1

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
9,132 reviews
United Airlines
7.4
Good
9,132 reviews

Overall

7.4

Crew

8.1

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
10,574 reviews
United Airlines
7.4
Good
9,132 reviews

Overall

7.4

Crew

8.1

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 17h 07m. Fly via Delta to get the fastest option. There are 2423 mi between Ontario and Montreal Pierre Elliott Trudeau Intl Airport.

  • 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

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 Pierre Elliott Trudeau Intl

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
San Diego to Pierre Elliott Trudeau Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Santa Rosa to Pierre Elliott Trudeau Intl flights
Oakland to Pierre Elliott Trudeau Intl flights
Reno to Pierre Elliott Trudeau Intl flights
Long Beach to Pierre Elliott Trudeau Intl flights
Burbank to Pierre Elliott Trudeau Intl flights
Palm Springs to Pierre Elliott Trudeau Intl flights
Santa Barbara to Pierre Elliott Trudeau Intl flights
Fresno to Pierre Elliott Trudeau Intl flights
Monterey to Pierre Elliott Trudeau Intl flights
Medford to Pierre Elliott Trudeau Intl flights

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 janvier 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$614FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$419Average$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.