What is the cheapest day to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Travelers seeking maximum savings on their Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport ranges from 2.5 - 4.4 inches per month. August is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 2.5 in.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the most popular airlines that fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Before booking your flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport check out the most popular airlines for this route: Air Canada, Delta or United Airlines.

What is the cheapest day to fly round-trip from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Wednesday flights are generally found to be more expensive for flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Montreal Pierre Elliott Trudeau Intl Airport.

What is the cheapest month to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

The best pricing can be found in the month of March. Prices to Montreal Pierre Elliott Trudeau Intl Airport from Ontario average $449. You can even find prices in March for less than $449, as users have found deals to Montreal Pierre Elliott Trudeau Intl Airport from as low as $127. The month of December appears to be one of the more expensive times to travel to Montreal Pierre Elliott Trudeau Intl Airport from Ontario. Flying in the targeted month can save you up to 61%.

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. 3 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 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.

$155+ Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Q: How far in advance should I book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 106% on flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $301. For sooner than that we have options available in the next 3 days from $1,066.

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Cheap flight deals from Ontario to Pierre Elliott Trudeau Intl

Round-trip from	$471 (American Airlines)
One-way from	$155 (Trip.com)
Popular in	January
Cheapest in	February
Average price	$463

From Ontario to Montreal Pierre Elliott Trudeau Intl

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One-way flight from Ontario to Montreal Pierre Elliott Trudeau Intl

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Highest demand for flights based on searches. 17% potential increase in price ($114 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find 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 agosto 14, 2025.

mié. 10/14:45 pmONT - YUL

2 stops19h 44mAmerican Airlines

mar. 10/77:29 amYUL - ONT

2 stops14h 06mAmerican Airlines

Deal found 8/12

$471

sáb. 9/61:10 pmONT - YUL

2 stops20h 14mAmerican Airlines

sáb. 9/207:50 amYUL - ONT

2 stops13h 26mAmerican Airlines

Deal found 8/13

$514

sáb. 9/201:10 pmONT - YUL

2 stops20h 14mAmerican Airlines

dom. 9/213:44 pmYUL - ONT

1 stop21h 19mAmerican Airlines

Deal found 8/14

$598

sáb. 9/137:00 amONT - YUL

1 stop11h 29mMultiple Airlines

lun. 9/228:05 amYUL - ONT

1 stop15h 28mMultiple Airlines

Deal found 8/12

$623

mié. 10/11:53 pmONT - YUL

1 stop15h 23mMultiple Airlines

mar. 10/71:20 pmYUL - ONT

1 stop12h 10mMultiple Airlines

Deal found 8/14

$640

sáb. 9/1312:47 pmONT - YUL

2 stops19h 59mAmerican Airlines

lun. 9/223:44 pmYUL - ONT

1 stop23h 13mAmerican Airlines

Deal found 8/12

$646

sáb. 10/47:02 amONT - YUL

1 stop11h 27mMultiple Airlines

lun. 10/68:05 amYUL - ONT

1 stop12h 35mMultiple Airlines

Deal found 8/11

$653

sáb. 9/66:00 amONT - YUL

1 stop11h 05mMultiple Airlines

sáb. 9/209:45 amYUL - ONT

1 stop15h 45mMultiple Airlines

Deal found 8/13

$656

mié. 8/278:00 amONT - YUL

2 stops20h 08mMultiple Airlines

sáb. 8/304:05 pmYUL - ONT

1 stop32h 50mMultiple Airlines

Deal found 8/13

$665

Best flights from Ontario to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Ontario to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

mié. 10/14:45 pmONT - YUL

2 stops19h 44mAmerican Airlines

mar. 10/77:29 amYUL - ONT

2 stops14h 06mAmerican Airlines

Deal found 8/12

$471

sáb. 9/137:00 amONT - YUL

1 stop11h 29mMultiple Airlines

lun. 9/228:05 amYUL - ONT

1 stop15h 28mMultiple Airlines

Deal found 8/12

$623

sáb. 9/61:10 pmONT - YUL

2 stops20h 14mAmerican Airlines

sáb. 9/207:50 amYUL - ONT

2 stops13h 26mAmerican Airlines

Deal found 8/13

$514

mié. 10/11:53 pmONT - YUL

1 stop15h 23mMultiple Airlines

mar. 10/79:45 amYUL - ONT

1 stop15h 45mMultiple Airlines

Deal found 8/12

$640

sáb. 9/201:10 pmONT - YUL

2 stops20h 14mAmerican Airlines

dom. 9/213:44 pmYUL - ONT

1 stop21h 19mAmerican Airlines

Deal found 8/14

$598

sáb. 10/42:54 pmONT - YUL

2 stops17h 52mAmerican Airlines

lun. 10/62:35 pmYUL - ONT

1 stop8h 32mAmerican Airlines

Deal found 8/11

$646

Last-minute flights from Ontario to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from Ontario to Pierre Elliott Trudeau Intl. Data last updated agosto 14, 2025 and is based on user searches.

mar. 8/1910:00 pmONT - YUL

1 stop10h 37mDelta

mar. 8/266:00 amYUL - ONT

2 stops16h 11mDelta

Deal found 8/12

$981

mar. 8/196:50 pmONT - YUL

1 stop10h 26mUnited Airlines

mié. 8/278:05 amYUL - ONT

1 stop12h 24mUnited Airlines

Deal found 8/12

$999

mar. 8/196:50 pmONT - YUL

1 stop10h 26mUnited Airlines

jue. 8/288:05 amYUL - ONT

1 stop15h 38mUnited Airlines

Deal found 8/13

$1,048

mar. 8/196:50 pmONT - YUL

1 stop10h 26mUnited Airlines

mar. 8/268:05 amYUL - ONT

2 stops16h 20mUnited Airlines

Deal found 8/13

$1,054

mar. 8/1910:00 pmONT - YUL

1 stop10h 37mDelta

mié. 8/276:20 amYUL - ONT

2 stops12h 48mDelta

Deal found 8/12

$1,105

mié. 8/206:50 pmONT - YUL

1 stop10h 26mUnited Airlines

dom. 8/314:55 pmYUL - ONT

1 stop8h 35mUnited Airlines

Deal found 8/12

$1,058

jue. 8/215:10 amONT - YUL

1 stop15h 16mUnited Airlines

dom. 8/318:05 amYUL - ONT

1 stop12h 32mUnited Airlines

Deal found 8/12

$1,029

mié. 8/278:00 amONT - YUL

2 stops20h 08mMultiple Airlines

sáb. 8/304:05 pmYUL - ONT

1 stop32h 50mMultiple Airlines

Deal found 8/13

$665

vie. 8/296:38 pmONT - YUL

1 stop25h 48mUnited Airlines

dom. 9/78:05 amYUL - ONT

1 stop31h 08mUnited Airlines

Deal found 8/13

$764

sáb. 9/61:10 pmONT - YUL

2 stops20h 14mAmerican Airlines

sáb. 9/207:50 amYUL - ONT

2 stops13h 26mAmerican Airlines

Deal found 8/13

$514

sáb. 9/66:00 amONT - YUL

1 stop11h 05mMultiple Airlines

sáb. 9/209:45 amYUL - ONT

1 stop15h 45mMultiple Airlines

Deal found 8/13

$656

sáb. 9/137:00 amONT - YUL

1 stop11h 29mMultiple Airlines

lun. 9/228:05 amYUL - ONT

1 stop15h 28mMultiple Airlines

Deal found 8/12

$623

One-way flights from Ontario to Pierre Elliott Trudeau Intl
Search for one-way flight options from Ontario to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

mié. 10/18:00 amONT - YUL

1 stop20h 10mMultiple Airlines

Deal found 8/14

$155

lun. 11/37:44 pmONT - YUL

2 stops18h 02mMultiple Airlines

Deal found 8/14

$178

jue. 9/117:30 pmONT - YUL

2 stops25h 57mMultiple Airlines

Deal found 8/14

$179

lun. 9/224:45 pmONT - YUL

2 stops19h 48mAmerican Airlines

Deal found 8/14

$209

lun. 9/110:13 pmONT - YUL

3 stops47h 28mMultiple Airlines

Deal found 8/13

$230

jue. 9/251:10 pmONT - YUL

2 stops23h 19mAmerican Airlines

Deal found 8/14

$247

dom. 11/212:50 pmONT - YUL

2 stops15h 35mMultiple Airlines

Deal found 8/14

$254

sáb. 9/277:02 amONT - YUL

1 stop11h 27mUnited Airlines

Deal found 8/14

$261

sáb. 11/17:00 amONT - YUL

1 stop11h 17mMultiple Airlines

Deal found 8/14

$269

jue. 8/285:38 pmONT - YUL

3 stops27h 59mMultiple Airlines

Deal found 8/12

$270

vie. 9/261:10 pmONT - YUL

2 stops19h 35mAmerican Airlines

Deal found 8/14

$277

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mié. 10/1

4:45 pm-3:29 pm

2 stops19h 44m

Montreal Pierre Elliott Trudeau Intl

mar. 10/7

7:29 am-6:35 pm

2 stops14h 06m

$471

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 9/6

1:10 pm-12:24 pm

2 stops20h 14m

Montreal Pierre Elliott Trudeau Intl

sáb. 9/20

7:50 am-6:16 pm

2 stops13h 26m

$514

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 9/20

1:10 pm-12:24 pm

2 stops20h 14m

Montreal Pierre Elliott Trudeau Intl

dom. 9/21

3:44 pm-10:03 am

1 stop21h 19m

$598

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 9/13

7:00 am-9:29 pm

1 stop11h 29m

Montreal Pierre Elliott Trudeau Intl

lun. 9/22

8:05 am-8:33 pm

1 stop15h 28m

$623

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

mié. 10/1

1:53 pm-8:16 am

1 stop15h 23m

Montreal Pierre Elliott Trudeau Intl

mar. 10/7

9:45 am-10:30 pm

1 stop15h 45m

$640

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 10/4

2:54 pm-11:46 am

2 stops17h 52m

Montreal Pierre Elliott Trudeau Intl

lun. 10/6

2:35 pm-8:07 pm

1 stop8h 32m

$646

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

lun. 11/3

7:44 pm-4:46 pm

2 stops18h 02m

$178

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

lun. 9/1

10:13 pm-12:41 am

3 stops47h 28m

$230

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

dom. 11/2

12:50 pm-7:25 am

2 stops15h 35m

$254

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

sáb. 11/1

7:00 am-9:17 pm

1 stop11h 17m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 16 results

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, January is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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?

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 in the morning tend to be the most expensive. A flight at noon could potentially save you up to 19% on airfare.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Read through reviews of airlines operating flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, such as Delta, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,916 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.1

Good

9,949 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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. 3 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.
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.Alternate airlines to your destination round-trip include Delta and Air Canada. You may be able to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport for 60% less than the average price by searching for these airlines.
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, January is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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

Laval

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Brossard

Sherbrooke

Dorval

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Top 3 airlines flying from Ontario to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$219	Average$496	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$347	Average$470	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$376	Average$600	FlexibilityNo cancel fee	On-time67%

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$155+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Pierre Elliott Trudeau Intl with Cheapflights

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Find flight deals from Ontario to Pierre Elliott Trudeau Intl

Cheapest flights from Ontario to Pierre Elliott Trudeau IntlExplore 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 agosto 14, 2025.

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 agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

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.

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?

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 agosto 14, 2025.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Read through reviews of airlines operating flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, such as Delta, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I 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?

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

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

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Alternative routes for Ontario to Pierre Elliott Trudeau Intl

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Top 3 airlines flying from Ontario to Pierre Elliott Trudeau Intl

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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 agosto 14, 2025.