Cheap flights from Ontario to Montreal from $134

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 10/16. 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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0 bags

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Cheap round-trip flights

American Airlines Logo
4:49 pm - 1:15 pmONT-YUL
17h 26m2 stops
American Airlines Logo
7:14 am - 6:20 pmYUL-ONT
14h 06m2 stops
$464American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Multiple Airlines Logo
6:53 am - 11:22 pmONT-YUL
13h 29m2 stops
Multiple Airlines Logo
5:25 pm - 11:50 pmYUL-ONT
9h 25m1 stop
$605Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
American Airlines Logo
10:38 am - 3:20 pmONT-YUL
25h 42m2 stops
American Airlines Logo
2:25 pm - 8:42 amYUL-ONT
21h 17m2 stops
$621American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
8:04 pm - 3:00 pmONT-YUL
15h 56m2 stops
American Airlines Logo
2:25 pm - 8:42 amYUL-ONT
21h 17m2 stops
$642American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
6:38 pm - 5:49 pmONT-YUL
20h 11m1 stop
United Airlines Logo
2:13 pm - 12:37 pmYUL-ONT
25h 24m2 stops
$660United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
6:38 pm - 5:49 pmONT-YUL
20h 11m1 stop
United Airlines Logo
5:50 pm - 5:34 pmYUL-ONT
26h 44m1 stop
$671United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Multiple Airlines Logo
6:38 pm - 4:49 pmONT-YUL
19h 11m1 stop
Multiple Airlines Logo
5:25 pm - 8:44 pmYUL-ONT
30h 19m1 stop
$690Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
10:30 pm - 11:44 amONT-YUL
10h 14m1 stop
Delta Logo
12:45 pm - 9:14 pmYUL-ONT
11h 29m1 stop
$894Delta
Find Deal
Fri, Feb 20 - Tue, Feb 24
Air Canada Logo
6:36 pm - 10:40 amONT-YUL
13h 04m2 stops
Air Canada Logo
9:45 am - 8:24 pmYUL-ONT
13h 39m2 stops
$913Air Canada
Find Deal
Fri, Oct 10 - Tue, Oct 14
Air Canada Logo
9:36 am - 1:50 amONT-YUL
13h 14m2 stops
Air Canada Logo
9:45 am - 8:24 pmYUL-ONT
13h 39m2 stops
$920Air Canada
Find Deal
Thu, Oct 9 - Tue, Oct 14

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
Nov 1
ONT4:49 pmOntario
17h 26m
2 stops
YUL1:15 pmMontreal Pierre Elliott Trudeau Intl
Nov 8
YUL7:14 amMontreal Pierre Elliott Trudeau Intl
14h 06m
2 stops
ONT6:20 pmOntario
American Airlines
Feb 20
ONT10:38 amOntario
25h 42m
2 stops
YUL3:20 pmMontreal Pierre Elliott Trudeau Intl
Feb 24
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
21h 17m
2 stops
ONT8:42 amOntario
American Airlines
Feb 20
ONT8:04 pmOntario
15h 56m
2 stops
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
Feb 24
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
21h 17m
2 stops
ONT8:42 amOntario

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
Nov 1
ONT6:38 pmOntario
20h 11m
1 stop
YUL5:49 pmMontreal Pierre Elliott Trudeau Intl
Nov 8
YUL2:13 pmMontreal Pierre Elliott Trudeau Intl
25h 24m
2 stops
ONT12:37 pmOntario
United Airlines
Nov 1
ONT6:38 pmOntario
20h 11m
1 stop
YUL5:49 pmMontreal Pierre Elliott Trudeau Intl
Nov 8
YUL5:50 pmMontreal Pierre Elliott Trudeau Intl
26h 44m
1 stop
ONT5:34 pmOntario
United Airlines
Feb 20
ONT1:00 pmOntario
24h 58m
1 stop
YUL4:58 pmMontreal Pierre Elliott Trudeau Intl
Feb 24
YUL8:05 amMontreal Pierre Elliott Trudeau Intl
17h 52m
2 stops
ONT10:57 pmOntario

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 September 17, 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

Fly to

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/1

4:49 pm-1:15 pm

2 stops17h 26m

Montreal Pierre Elliott Trudeau Intl

Sat 11/8

7:14 am-6:20 pm

2 stops14h 06m

$464

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 10/30

6:53 am-11:22 pm

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

5:25 pm-11:50 pm

1 stop9h 25m

$605

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 2/20

10:38 am-3:20 pm

2 stops25h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

2:25 pm-8:42 am

2 stops21h 17m

$621

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 2/20

8:04 pm-3:00 pm

2 stops15h 56m

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

2:25 pm-8:42 am

2 stops21h 17m

$642

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/1

6:38 pm-5:49 pm

1 stop20h 11m

Montreal Pierre Elliott Trudeau Intl

Sat 11/8

2:13 pm-12:37 pm

2 stops25h 24m

$660

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/1

6:38 pm-5:49 pm

1 stop20h 11m

Montreal Pierre Elliott Trudeau Intl

Sat 11/8

5:50 pm-5:34 pm

1 stop26h 44m

$671

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 10/30

6:38 pm-4:49 pm

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

5:25 pm-8:44 pm

1 stop30h 19m

$690

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 2/20

10:30 pm-11:44 am

1 stop10h 14m

Montreal Pierre Elliott Trudeau Intl

Tue 2/24

12:45 pm-9:14 pm

1 stop11h 29m

$894

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 10/10

6:36 pm-10:40 am

2 stops13h 04m

Montreal Pierre Elliott Trudeau Intl

Tue 10/14

9:45 am-8:24 pm

2 stops13h 39m

$913

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 10/9

9:36 am-1:50 am

2 stops13h 14m

Montreal Pierre Elliott Trudeau Intl

Tue 10/14

9:45 am-8:24 pm

2 stops13h 39m

$920

Flights are sorted by cheapest round-trip flights 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 $667. Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport on a Friday will generally be more expensive and average around $753. 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 afternoon 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 $226. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the afternoon 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 $738.

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

Direct flights

None
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.
  • 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 49m.

  • 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
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $347Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Air CanadaPriceFrom $376Free CancellationRating
7.1
10,000 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
Longueuil
Dorval
Brossard
Magog
Trois-Rivières
Cornwall
Saint-Sauveur
Sherbrooke
Boucherville
Bromont
Drummondville
Montebello
Saint-Jean-sur-Richelieu
Sutton
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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1 adult
Fri 10/17
Fri 10/24

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