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Cheap flights from Ontario to Montreal from $151

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 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:00 pm - 11:35 am
ONT
-
YUL
10h 35m
1 stop
Delta Logo
9:30 am - 9:48 pm
YUL
-
ONT
15h 18m
2 stops
$576Delta
Sat, May 23 - Fri, May 29
Delta Logo
6:00 am - 11:41 pm
ONT
-
YUL
14h 41m
2 stops
Delta Logo
9:30 am - 9:48 pm
YUL
-
ONT
15h 18m
2 stops
$581Delta
Sat, May 23 - Fri, May 29
American Airlines Logo
7:13 pm - 11:42 am
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
7:29 am - 6:21 pm
YUL
-
ONT
13h 52m
2 stops
$591American Airlines
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
11:59 pm - 1:52 pm
ONT
-
YUL
10h 53m
2 stops
American Airlines Logo
2:32 pm - 9:07 pm
YUL
-
ONT
9h 35m
1 stop
$597American Airlines
Mon, May 11 - Wed, May 20
Delta Logo
10:00 pm - 11:35 am
ONT
-
YUL
10h 35m
1 stop
Delta Logo
12:40 pm - 6:36 pm
YUL
-
ONT
8h 56m
1 stop
$605Delta
Fri, May 29 - Thu, Jun 4
Delta Logo
10:00 pm - 11:35 am
ONT
-
YUL
10h 35m
1 stop
Delta Logo
12:40 pm - 6:36 pm
YUL
-
ONT
8h 56m
1 stop
$606Delta
Fri, May 29 - Thu, Jun 4
Air Canada Logo
6:00 am - 8:41 pm
ONT
-
YUL
11h 41m
2 stops
Air Canada Logo
11:10 am - 8:36 pm
YUL
-
ONT
12h 26m
2 stops
$613Air Canada
Mon, May 11 - Wed, May 20
Delta Logo
12:07 pm - 11:57 pm
ONT
-
YUL
8h 50m
1 stop
Delta Logo
12:40 pm - 6:36 pm
YUL
-
ONT
8h 56m
1 stop
$614Delta
Sat, May 16 - Fri, May 22
United Airlines Logo
5:45 am - 10:06 pm
ONT
-
YUL
13h 21m
2 stops
United Airlines Logo
4:55 pm - 10:51 pm
YUL
-
ONT
8h 56m
1 stop
$622United Airlines
Sat, Jun 20 - Fri, Jul 3
Delta Logo
12:07 pm - 11:57 pm
ONT
-
YUL
8h 50m
1 stop
Delta Logo
9:30 am - 6:36 pm
YUL
-
ONT
12h 06m
2 stops
$623Delta
Sat, May 16 - Sun, May 24

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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
Delta
May 23
ONT10:00 pmOntario
10h 35m
1 stop
YUL11:35 amMontreal Pierre Elliott Trudeau Intl
May 29
YUL9:30 amMontreal Pierre Elliott Trudeau Intl
15h 18m
2 stops
ONT9:48 pmOntario
$576
Delta
May 23
ONT6:00 amOntario
14h 41m
2 stops
YUL11:41 pmMontreal Pierre Elliott Trudeau Intl
May 29
YUL9:30 amMontreal Pierre Elliott Trudeau Intl
15h 18m
2 stops
ONT9:48 pmOntario
$581
Delta
May 29
ONT10:00 pmOntario
10h 35m
1 stop
YUL11:35 amMontreal Pierre Elliott Trudeau Intl
Jun 4
YUL12:40 pmMontreal Pierre Elliott Trudeau Intl
8h 56m
1 stop
ONT6:36 pmOntario
$605

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

Our best United Airlines deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
United Airlines
Jun 20
ONT5:45 amOntario
13h 21m
2 stops
YUL10:06 pmMontreal Pierre Elliott Trudeau Intl
Jul 2
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
13h 57m
2 stops
ONT8:42 pmOntario
$622
United Airlines
Jun 6
ONT5:00 amOntario
14h 06m
2 stops
YUL10:06 pmMontreal Pierre Elliott Trudeau Intl
Jun 9
YUL4:55 pmMontreal Pierre Elliott Trudeau Intl
8h 51m
1 stop
ONT10:46 pmOntario
$624
United Airlines
Jun 6
ONT6:30 amOntario
11h 56m
1 stop
YUL9:26 pmMontreal Pierre Elliott Trudeau Intl
Jun 9
YUL4:55 pmMontreal Pierre Elliott Trudeau Intl
8h 51m
1 stop
ONT10:46 pmOntario
$642

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport 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, momondo users made 832,500 searches. Data last updated April 29, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 5/23

10:00 pm-11:35 am

1 stop10h 35m

Montreal Pierre Elliott Trudeau Intl

Fri 5/29

9:30 am-9:48 pm

2 stops15h 18m

$576

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 5/23

6:00 am-11:41 pm

2 stops14h 41m

Montreal Pierre Elliott Trudeau Intl

Fri 5/29

9:30 am-9:48 pm

2 stops15h 18m

$581

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 6/23

7:13 pm-11:42 am

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Tue 6/30

7:29 am-6:21 pm

2 stops13h 52m

$591

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 5/11

11:59 pm-1:52 pm

2 stops10h 53m

Montreal Pierre Elliott Trudeau Intl

Wed 5/20

2:32 pm-9:07 pm

1 stop9h 35m

$597

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 5/29

10:00 pm-11:35 am

1 stop10h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 6/4

12:40 pm-6:36 pm

1 stop8h 56m

$605

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 5/29

10:00 pm-11:35 am

1 stop10h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 6/4

12:40 pm-6:36 pm

1 stop8h 56m

$606

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 5/11

6:00 am-8:41 pm

2 stops11h 41m

Montreal Pierre Elliott Trudeau Intl

Wed 5/20

11:10 am-8:36 pm

2 stops12h 26m

$613
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 5/16

12:07 pm-11:57 pm

1 stop8h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 5/22

12:40 pm-6:36 pm

1 stop8h 56m

$614

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 6/20

5:45 am-10:06 pm

2 stops13h 21m

Montreal Pierre Elliott Trudeau Intl

Fri 7/3

4:55 pm-10:51 pm

1 stop8h 56m

$622

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 5/16

12:07 pm-11:57 pm

1 stop8h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 5/24

9:30 am-6:36 pm

2 stops12h 06m

$623

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Montreal from

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

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 $658. Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport on a Friday will generally be more expensive and average around $745. 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 $558. 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 $719.

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

You could potentially save up to 24% 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 30m

Direct flights

None
The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 7h 30m
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

Frequently asked questions about flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

  • 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 30m.

  • 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?

  • 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?

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 AirlinesPriceFrom $219Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights
Air CanadaPriceFrom $419Free CancellationRating
7.1
10,979 reviews
Search Air Canada flights

Traveling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Dorval
Brossard
Longueuil
Trois-Rivières
Cornwall
Saint-Sauveur
Sherbrooke
Magog
Boucherville
Drummondville
Saint-Jean-sur-Richelieu
Montebello
Bromont
North Hatley

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.

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