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Cheap flights from Ontario to Montreal from $154

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 4/20. 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.
American Airlines Logo
4:52 pm - 11:44 am
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
12:30 pm - 11:46 pm
YUL
-
ONT
14h 16m
2 stops
$542American Airlines
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
11:59 pm - 9:17 pm
ONT
-
YUL
18h 18m
1 stop
United Airlines Logo
9:45 am - 10:31 pm
YUL
-
ONT
15h 46m
1 stop
$627United Airlines
Mon, Mar 23 - Wed, Apr 1
American Airlines Logo
4:52 pm - 12:18 pm
ONT
-
YUL
16h 26m
2 stops
American Airlines Logo
7:45 am - 6:24 pm
YUL
-
ONT
13h 39m
2 stops
$628American Airlines
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
11:29 pm - 10:58 pm
ONT
-
YUL
20h 29m
1 stop
American Airlines Logo
3:45 pm - 10:36 pm
YUL
-
ONT
9h 51m
1 stop
$629American Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
7:35 pm - 3:27 pm
ONT
-
YUL
16h 52m
2 stops
American Airlines Logo
1:03 pm - 9:59 pm
YUL
-
ONT
11h 56m
2 stops
$632American Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
10:36 pm - 10:48 pm
ONT
-
YUL
21h 12m
1 stop
American Airlines Logo
3:45 pm - 10:04 am
YUL
-
ONT
21h 19m
1 stop
$635American Airlines
Fri, Apr 3 - Fri, Apr 10
United Airlines Logo
11:59 pm - 9:17 pm
ONT
-
YUL
18h 18m
1 stop
United Airlines Logo
9:45 am - 10:45 pm
YUL
-
ONT
16h 00m
2 stops
$636United Airlines
Mon, Mar 23 - Thu, Apr 2
Delta Logo
10:15 pm - 6:51 pm
ONT
-
YUL
17h 36m
2 stops
Delta Logo
12:50 pm - 9:00 pm
YUL
-
ONT
11h 10m
1 stop
$640Delta
Tue, Apr 21 - Wed, Apr 29
United Airlines Logo
5:15 am - 9:17 pm
ONT
-
YUL
13h 02m
2 stops
United Airlines Logo
11:23 am - 10:45 pm
YUL
-
ONT
14h 22m
2 stops
$642United Airlines
Tue, Mar 24 - Mon, Mar 30
Delta Logo
10:15 pm - 6:51 pm
ONT
-
YUL
17h 36m
2 stops
Delta Logo
9:30 am - 9:00 pm
YUL
-
ONT
14h 30m
2 stops
$645Delta
Tue, Apr 21 - Thu, Apr 30

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
Mar 23
ONT11:59 pmOntario
18h 18m
1 stop
YUL9:17 pmMontreal Pierre Elliott Trudeau Intl
Apr 1
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
15h 46m
1 stop
ONT10:31 pmOntario
$627
United Airlines
Mar 23
ONT11:59 pmOntario
18h 18m
1 stop
YUL9:17 pmMontreal Pierre Elliott Trudeau Intl
Apr 2
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
16h 00m
2 stops
ONT10:45 pmOntario
$636
United Airlines
Mar 24
ONT5:15 amOntario
13h 02m
2 stops
YUL9:17 pmMontreal Pierre Elliott Trudeau Intl
Mar 30
YUL11:23 amMontreal Pierre Elliott Trudeau Intl
14h 22m
2 stops
ONT10:45 pmOntario
$642

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
Apr 22
ONT4:52 pmOntario
15h 52m
2 stops
YUL11:44 amMontreal Pierre Elliott Trudeau Intl
Apr 29
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
14h 16m
2 stops
ONT11:46 pmOntario
$542
American Airlines
Apr 7
ONT4:52 pmOntario
16h 26m
2 stops
YUL12:18 pmMontreal Pierre Elliott Trudeau Intl
Apr 14
YUL7:45 amMontreal Pierre Elliott Trudeau Intl
13h 39m
2 stops
ONT6:24 pmOntario
$628
American Airlines
Apr 20
ONT11:29 pmOntario
20h 29m
1 stop
YUL10:58 pmMontreal Pierre Elliott Trudeau Intl
Apr 27
YUL3:45 pmMontreal Pierre Elliott Trudeau Intl
9h 51m
1 stop
ONT10:36 pmOntario
$629

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 March 10, 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

Wed 4/22

4:52 pm-11:44 am

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

12:30 pm-11:46 pm

2 stops14h 16m

$542

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 3/23

11:59 pm-9:17 pm

1 stop18h 18m

Montreal Pierre Elliott Trudeau Intl

Wed 4/1

9:45 am-10:31 pm

1 stop15h 46m

$627

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 4/7

4:52 pm-12:18 pm

2 stops16h 26m

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

7:45 am-6:24 pm

2 stops13h 39m

$628

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 4/20

11:29 pm-10:58 pm

1 stop20h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

3:45 pm-10:36 pm

1 stop9h 51m

$629

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 4/20

7:35 pm-3:27 pm

2 stops16h 52m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

1:03 pm-9:59 pm

2 stops11h 56m

$632

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 4/3

10:36 pm-10:48 pm

1 stop21h 12m

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

3:45 pm-10:04 am

1 stop21h 19m

$635

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 3/23

11:59 pm-9:17 pm

1 stop18h 18m

Montreal Pierre Elliott Trudeau Intl

Thu 4/2

9:45 am-10:45 pm

2 stops16h 00m

$636

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 4/21

10:15 pm-6:51 pm

2 stops17h 36m

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

12:50 pm-9:00 pm

1 stop11h 10m

$640
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 3/24

5:15 am-9:17 pm

2 stops13h 02m

Montreal Pierre Elliott Trudeau Intl

Mon 3/30

11:23 am-10:45 pm

2 stops14h 22m

$642

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 4/21

10:15 pm-6:51 pm

2 stops17h 36m

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

9:30 am-9:00 pm

2 stops14h 30m

$645

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

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

You could potentially save up to 29% 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.
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  • 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
9,409 reviews
Search United Airlines flights
Air CanadaPriceFrom $419Free CancellationRating
7.1
10,800 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
Magog
Saint-Sauveur
Boucherville
Sherbrooke
Drummondville
Montebello
Saint-Jean-sur-Richelieu
Bromont
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.

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