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Cheap flights from Ontario to Montreal from C$ 431

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 25/2. 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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Cheap round-trip flights

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Delta Logo
10:20 p.m. - 6:37 p.m.ONT-YUL
17h 17m2 stops
Delta Logo
7:30 p.m. - 11:59 a.m.YUL-ONT
19h 29m2 stops
C$ 864Delta
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Sat, 21 Feb - Tue, 24 Feb
Multiple Airlines Logo
6:30 a.m. - 7:05 a.m.ONT-YUL
21h 35m2 stops
Multiple Airlines Logo
3:00 p.m. - 8:55 p.m.YUL-ONT
32h 55m1 stop
C$ 870Multiple Airlines
Find Deal
Mon, 19 Jan - Sat, 24 Jan
American Airlines Logo
7:30 p.m. - 3:08 p.m.ONT-YUL
16h 38m2 stops
American Airlines Logo
7:30 a.m. - 6:20 p.m.YUL-ONT
13h 50m2 stops
C$ 895American Airlines
Find Deal
Mon, 19 Jan - Sat, 24 Jan
Delta Logo
10:30 p.m. - 6:49 p.m.ONT-YUL
17h 19m2 stops
Delta Logo
7:45 p.m. - 11:38 a.m.YUL-ONT
18h 53m2 stops
C$ 912Delta
Find Deal
Sat, 21 Feb - Tue, 24 Feb
American Airlines Logo
4:45 p.m. - 3:08 p.m.ONT-YUL
19h 23m2 stops
American Airlines Logo
7:30 a.m. - 10:13 p.m.YUL-ONT
17h 43m2 stops
C$ 929American Airlines
Find Deal
Tue, 20 Jan - Sun, 25 Jan
Multiple Airlines Logo
6:37 p.m. - 9:20 a.m.ONT-YUL
11h 43m2 stops
Multiple Airlines Logo
6:45 a.m. - 5:42 p.m.YUL-ONT
13h 57m2 stops
C$ 937Multiple Airlines
Find Deal
Sun, 21 Dec - Sun, 4 Jan
Air Canada Logo
5:05 a.m. - 11:09 p.m.ONT-YUL
15h 04m2 stops
Air Canada Logo
10:10 a.m. - 8:42 p.m.YUL-ONT
13h 32m2 stops
C$ 1,070Air Canada
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Sat, 29 Nov - Mon, 8 Dec
Air Canada Logo
5:05 a.m. - 4:58 p.m.ONT-YUL
8h 53m1 stop
Air Canada Logo
3:10 p.m. - 10:49 p.m.YUL-ONT
10h 39m2 stops
C$ 1,112Air Canada
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Sat, 29 Nov - Mon, 8 Dec
United Airlines Logo
6:00 a.m. - 12:02 p.m.ONT-YUL
27h 02m2 stops
United Airlines Logo
9:25 a.m. - 10:25 p.m.YUL-ONT
16h 00m1 stop
C$ 1,160United Airlines
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Tue, 16 Dec - Tue, 23 Dec
United Airlines Logo
5:05 a.m. - 7:32 a.m.ONT-YUL
23h 27m2 stops
United Airlines Logo
6:25 p.m. - 9:52 p.m.YUL-ONT
30h 27m2 stops
C$ 1,184United Airlines
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Tue, 16 Dec - Tue, 23 Dec

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
16 Dec
ONT6:00 a.m.Ontario
27h 02m
2 stops
YUL12:02 p.m.Montreal Pierre Elliott Trudeau Intl
23 Dec
YUL9:25 a.m.Montreal Pierre Elliott Trudeau Intl
16h 00m
1 stop
ONT10:25 p.m.Ontario
C$ 1,160
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United Airlines
16 Dec
ONT5:05 a.m.Ontario
23h 27m
2 stops
YUL7:32 a.m.Montreal Pierre Elliott Trudeau Intl
23 Dec
YUL6:25 p.m.Montreal Pierre Elliott Trudeau Intl
30h 27m
2 stops
ONT9:52 p.m.Ontario
C$ 1,184
Find similar
United Airlines
26 Feb
ONT5:00 a.m.Ontario
23h 32m
2 stops
YUL7:32 a.m.Montreal Pierre Elliott Trudeau Intl
1 Mar
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
17h 50m
2 stops
ONT8:50 p.m.Ontario
C$ 1,187
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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
19 Jan
ONT7:30 p.m.Ontario
16h 38m
2 stops
YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl
24 Jan
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
13h 50m
2 stops
ONT6:20 p.m.Ontario
C$ 895
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American Airlines
20 Jan
ONT4:45 p.m.Ontario
19h 23m
2 stops
YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl
25 Jan
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
17h 43m
2 stops
ONT10:13 p.m.Ontario
C$ 929
Find similar
American Airlines
22 Jan
ONT4:45 p.m.Ontario
19h 23m
2 stops
YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl
25 Jan
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
13h 50m
2 stops
ONT6:20 p.m.Ontario
C$ 941
Find similar

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 96,600 searches. Data last updated 3 November 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 21/2

10:20 p.m.-6:37 p.m.

2 stops17h 17m

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

7:30 p.m.-11:59 a.m.

2 stops19h 29m

C$ 864

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 19/1

6:30 a.m.-7:05 a.m.

2 stops21h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

3:00 p.m.-8:55 p.m.

1 stop32h 55m

C$ 870

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 19/1

7:30 p.m.-3:08 p.m.

2 stops16h 38m

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

7:30 a.m.-6:20 p.m.

2 stops13h 50m

C$ 895

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 21/2

10:30 p.m.-6:49 p.m.

2 stops17h 19m

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

7:45 p.m.-11:38 a.m.

2 stops18h 53m

C$ 912

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 20/1

4:45 p.m.-3:08 p.m.

2 stops19h 23m

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

7:30 a.m.-10:13 p.m.

2 stops17h 43m

C$ 929

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 21/12

6:37 p.m.-9:20 a.m.

2 stops11h 43m

Montreal Pierre Elliott Trudeau Intl

Sun 4/1

6:45 a.m.-5:42 p.m.

2 stops13h 57m

C$ 937

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 29/11

5:05 a.m.-11:09 p.m.

2 stops15h 04m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

10:10 a.m.-8:42 p.m.

2 stops13h 32m

C$ 1,070

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 29/11

5:05 a.m.-4:58 p.m.

1 stop8h 53m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

3:10 p.m.-10:49 p.m.

2 stops10h 39m

C$ 1,112

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 16/12

6:00 a.m.-12:02 p.m.

2 stops27h 02m

Montreal Pierre Elliott Trudeau Intl

Tue 23/12

9:25 a.m.-10:25 p.m.

1 stop16h 00m

C$ 1,160

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 16/12

5:05 a.m.-7:32 a.m.

2 stops23h 27m

Montreal Pierre Elliott Trudeau Intl

Tue 23/12

6:25 p.m.-9:52 p.m.

2 stops30h 27m

C$ 1,184

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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 on your flight to Montreal Pierre Elliott Trudeau Intl Airport is on a Tuesday when prices can be found for as low as C$ 235. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 613.

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 C$ 323. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around C$ 555. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

    There are 3903.0 km between Ontario and Montreal Pierre Elliott Trudeau Intl. By plane, this route typically takes 7h 50m.

  • 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 refresh daily.

  • 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 travel and health documents required for your trip to Montreal Pierre Elliott Trudeau Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montreal Pierre Elliott Trudeau Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Montreal?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Montreal for you.

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

Yes. momondo enables you to select and highlight flights to Montreal from Ontario with this policy.

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

Once all potential Ontario to Montreal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Montreal from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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

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