What is the cheapest airline that flies from Ontario to Montreal Pierre Elliott Trudeau Intl?

Delta and United Airlines are the most popular carriers operating from Ontario to Montreal Pierre Elliott Trudeau Intl

What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from Ontario according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 6 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Prices for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport are updated daily.

How many operators does momondo search for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The number of operators available for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport is 2 as of February 2026.

How old do you have to be to fly from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport.

What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

The required travel and health documents for your Montreal Pierre Elliott Trudeau Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montreal Pierre Elliott Trudeau Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$174 Cheap Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in 2026

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Find the cheapest flights from Ontario to Montreal

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:20 pm - 8:37 am

ONT

YUL

31h 17m

2 stops

6:00 am - 10:37 pm

YUL

ONT

19h 37m

2 stops

$624Delta

Sun, Mar 1 - Sat, Mar 7

12:57 pm - 11:45 pm

ONT

YUL

7h 48m

1 stop

9:20 am - 9:00 pm

YUL

ONT

14h 40m

2 stops

$643Delta

Wed, Mar 18 - Wed, Mar 25

6:00 am - 11:40 pm

ONT

YUL

14h 40m

2 stops

9:20 am - 9:00 pm

YUL

ONT

14h 40m

2 stops

$673Delta

Wed, Mar 18 - Wed, Mar 25

1:15 pm - 11:45 pm

ONT

YUL

7h 30m

1 stop

9:20 am - 9:00 pm

YUL

ONT

14h 40m

2 stops

$674Delta

Mon, Mar 2 - Mon, Mar 9

10:20 pm - 1:36 pm

ONT

YUL

12h 16m

2 stops

9:20 am - 9:00 pm

YUL

ONT

14h 40m

2 stops

$679Delta

Mon, Mar 2 - Mon, Mar 9

7:00 am - 9:26 pm

ONT

YUL

11h 26m

1 stop

6:00 pm - 9:56 am

YUL

ONT

18h 56m

1 stop

$703Multiple Airlines

Wed, Apr 15 - Mon, Apr 20

6:00 am - 11:13 pm

ONT

YUL

14h 13m

2 stops

12:50 pm - 6:33 pm

YUL

ONT

8h 43m

1 stop

$706Delta

Thu, Apr 9 - Mon, Apr 13

11:58 pm - 12:24 pm

ONT

YUL

9h 26m

2 stops

7:12 am - 9:24 pm

YUL

ONT

17h 12m

1 stop

$708American Airlines

Mon, Mar 9 - Sun, Mar 15

6:00 am - 11:13 pm

ONT

YUL

14h 13m

2 stops

9:30 am - 9:00 pm

YUL

ONT

14h 30m

2 stops

$711Delta

Thu, Apr 9 - Mon, Apr 13

6:00 am - 11:13 pm

ONT

YUL

14h 13m

2 stops

9:30 am - 6:33 pm

YUL

ONT

12h 03m

2 stops

$712Delta

Thu, Apr 9 - Mon, Apr 13

Delta flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best Delta deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

Delta

Mar 1

ONT10:20 pmOntario

31h 17m

2 stops

YUL8:37 amMontreal Pierre Elliott Trudeau Intl

Mar 7

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

19h 37m

2 stops

ONT10:37 pmOntario

$624

Delta

Mar 18

ONT12:57 pmOntario

7h 48m

1 stop

YUL11:45 pmMontreal Pierre Elliott Trudeau Intl

Mar 25

YUL9:20 amMontreal Pierre Elliott Trudeau Intl

14h 40m

2 stops

ONT9:00 pmOntario

$643

Delta

Mar 18

ONT6:00 amOntario

14h 40m

2 stops

YUL11:40 pmMontreal Pierre Elliott Trudeau Intl

Mar 25

YUL9:20 amMontreal Pierre Elliott Trudeau Intl

14h 40m

2 stops

ONT9:00 pmOntario

$673

American Airlines flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best American Airlines deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

American Airlines

Mar 9

ONT11:58 pmOntario

9h 26m

2 stops

YUL12:24 pmMontreal Pierre Elliott Trudeau Intl

Mar 15

YUL7:12 amMontreal Pierre Elliott Trudeau Intl

17h 12m

1 stop

ONT9:24 pmOntario

$708

American Airlines

Apr 24

ONT7:35 pmOntario

16h 52m

2 stops

YUL3:27 pmMontreal Pierre Elliott Trudeau Intl

Apr 26

YUL3:45 pmMontreal Pierre Elliott Trudeau Intl

9h 51m

1 stop

ONT10:36 pmOntario

$716

American Airlines

Mar 2

ONT11:59 pmOntario

10h 46m

1 stop

YUL1:45 pmMontreal Pierre Elliott Trudeau Intl

Mar 9

YUL2:25 pmMontreal Pierre Elliott Trudeau Intl

9h 59m

1 stop

ONT9:24 pmOntario

$734

momondo 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

Sun 3/1

10:20 pm-8:37 am

2 stops31h 17m

Montreal Pierre Elliott Trudeau Intl

Sat 3/7

6:00 am-10:37 pm

2 stops19h 37m

$624

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/18

12:57 pm-11:45 pm

1 stop7h 48m

Montreal Pierre Elliott Trudeau Intl

Wed 3/25

9:20 am-9:00 pm

2 stops14h 40m

$643

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/18

6:00 am-11:40 pm

2 stops14h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 3/25

9:20 am-9:00 pm

2 stops14h 40m

$673

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 3/2

1:15 pm-11:45 pm

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 3/9

9:20 am-9:00 pm

2 stops14h 40m

$674

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 3/2

10:20 pm-1:36 pm

2 stops12h 16m

Montreal Pierre Elliott Trudeau Intl

Mon 3/9

9:20 am-9:00 pm

2 stops14h 40m

$679

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 4/15

7:00 am-9:26 pm

1 stop11h 26m

Montreal Pierre Elliott Trudeau Intl

Mon 4/20

6:00 pm-9:56 am

1 stop18h 56m

$703

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/9

6:00 am-11:13 pm

2 stops14h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

12:50 pm-6:33 pm

1 stop8h 43m

$706

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 3/9

11:58 pm-12:24 pm

2 stops9h 26m

Montreal Pierre Elliott Trudeau Intl

Sun 3/15

7:12 am-9:24 pm

1 stop17h 12m

$708

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/9

6:00 am-11:13 pm

2 stops14h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

9:30 am-9:00 pm

2 stops14h 30m

$711

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/9

6:00 am-11:13 pm

2 stops14h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

9:30 am-6:33 pm

2 stops12h 03m

$712

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

The cheapest day to depart from Ontario to Montreal Pierre Elliott Trudeau Intl Airport is on a Thursday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Thursday will often find tickets for as low as $657. Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport on a Friday will generally be more expensive and average around $765. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

In the evening is the cheapest time of day to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $539. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $732.

Can stopping save me money on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight.

When to book flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Montreal Pierre Elliott Trudeau Intl Airport (ONT to YUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Fastest flight time	7h 28m
Direct flights	None

The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 7h 28m

There are no direct flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport. There are no popular flight routes from Ontario to Montreal Pierre Elliott Trudeau Intl Airport.

Search flight deals

How far is Ontario to Montreal Pierre Elliott Trudeau Intl by plane?
There are 2425.2 mi between Ontario and Montreal Pierre Elliott Trudeau Intl. In terms of flight time, this usually takes a little over 7h 28m.
When did momondo last update prices for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?
Prices for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?
The number of operators available for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport is 2 as of February 2026.
How old do you have to be to fly from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport.
What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?
The required travel and health documents for your Montreal Pierre Elliott Trudeau Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montreal Pierre Elliott Trudeau Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Ontario to Montreal Pierre Elliott Trudeau Intl Airport is United Airlines, representing 56% of all bookings. The subsequent popular airline is Air Canada at 44%.

Best airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 9,236 reviews		Search United Airlines flights
Air Canada	PriceFrom $419	Free Cancellation	Rating 7.1 10,688 reviews		Search Air Canada flights

Laval

Dorval

Brossard

Longueuil

Trois-Rivières

Cornwall

Magog

Boucherville

Sherbrooke

Drummondville

Montebello

Saint-Jean-sur-Richelieu

Bromont

Saint-Sauveur

North Hatley

Sutton

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Montreal?

Finding the right flight to Montreal from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Montreal quick and easy, saving you time and money.

Can I find flights from Ontario to Montreal with flexible booking policies on momondo?

Yes. All flights to Montreal from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Montreal?

Once you have performed a search for Ontario to Montreal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Montreal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Montreal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Montreal and let you know when they change.

An easier way to manage your Montreal Pierre Elliott Trudeau Intl Airport trip

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Cheap flights from Ontario to Montreal from $174

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Montreal departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best Delta deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

American Airlines flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best American Airlines deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

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

See travel insights to Montreal from

How to get the cheapest flight ticket from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

Can stopping save me money on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight.

What is the cheapest airline that flies from Ontario to Montreal Pierre Elliott Trudeau Intl?

Delta and United Airlines are the most popular carriers operating from Ontario to Montreal Pierre Elliott Trudeau Intl

What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?

When to book flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Cheap Ontario to Montreal Pierre Elliott Trudeau Intl Airport (ONT to YUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Fastest flight time

Direct flights

How far is Ontario to Montreal Pierre Elliott Trudeau Intl by plane?

When did momondo last update prices for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

How many operators does momondo search for flights from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

How old do you have to be to fly from Ontario Airport to Montreal Pierre Elliott Trudeau Intl Airport?

What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

What is the most popular airline from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

Best airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport with momondo

Traveling to a place near Montreal?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Montreal?

Can I find flights from Ontario to Montreal with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Montreal?

I’m not ready to book a flight from Ontario to Montreal right now. Can momondo alert me if prices change?

An easier way to manage your Montreal Pierre Elliott Trudeau Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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