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Cheap flights from Ontario to Montreal from C$ 390

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 30/10. 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

American Airlines Logo
4:49 p.m. - 11:40 a.m.ONT-YUL
15h 51m2 stops
American Airlines Logo
2:29 p.m. - 9:01 a.m.YUL-ONT
21h 32m2 stops
C$ 732American Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
American Airlines Logo
6:15 a.m. - 10:44 p.m.ONT-YUL
13h 29m2 stops
American Airlines Logo
7:30 a.m. - 9:59 p.m.YUL-ONT
17h 29m2 stops
C$ 774American Airlines
Find Deal
Sat, 1 Nov - Mon, 10 Nov
Multiple Airlines Logo
6:53 a.m. - 11:22 p.m.ONT-YUL
13h 29m2 stops
Multiple Airlines Logo
5:25 p.m. - 11:50 p.m.YUL-ONT
9h 25m1 stop
C$ 836Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
6:38 p.m. - 5:49 p.m.ONT-YUL
20h 11m1 stop
United Airlines Logo
5:50 p.m. - 12:37 p.m.YUL-ONT
21h 47m1 stop
C$ 857United Airlines
Find Deal
Sat, 1 Nov - Mon, 10 Nov
American Airlines Logo
10:38 a.m. - 3:20 p.m.ONT-YUL
25h 42m2 stops
American Airlines Logo
2:25 p.m. - 8:42 a.m.YUL-ONT
21h 17m2 stops
C$ 858American Airlines
Find Deal
Fri, 20 Feb - Tue, 24 Feb
American Airlines Logo
12:47 p.m. - 9:50 a.m.ONT-YUL
18h 03m2 stops
American Airlines Logo
10:30 a.m. - 10:42 p.m.YUL-ONT
15h 12m2 stops
C$ 861American Airlines
Find Deal
Tue, 7 Oct - Wed, 15 Oct
United Airlines Logo
6:00 a.m. - 11:20 a.m.ONT-YUL
26h 20m2 stops
United Airlines Logo
5:50 p.m. - 12:37 p.m.YUL-ONT
21h 47m1 stop
C$ 870United Airlines
Find Deal
Sat, 1 Nov - Mon, 10 Nov
Multiple Airlines Logo
6:38 p.m. - 4:49 p.m.ONT-YUL
19h 11m1 stop
Multiple Airlines Logo
5:25 p.m. - 8:44 p.m.YUL-ONT
30h 19m1 stop
C$ 953Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Delta Logo
11:45 a.m. - 8:36 a.m.ONT-YUL
17h 51m2 stops
Delta Logo
12:45 p.m. - 11:04 p.m.YUL-ONT
13h 19m1 stop
C$ 989Delta
Find Deal
Sat, 15 Nov - Tue, 25 Nov
Delta Logo
11:45 a.m. - 8:36 a.m.ONT-YUL
17h 51m2 stops
Delta Logo
9:26 a.m. - 11:04 p.m.YUL-ONT
16h 38m2 stops
C$ 996Delta
Find Deal
Sat, 15 Nov - Mon, 24 Nov

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
1 Nov
ONT6:38 p.m.Ontario
20h 11m
1 stop
YUL5:49 p.m.Montreal Pierre Elliott Trudeau Intl
10 Nov
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
21h 47m
1 stop
ONT12:37 p.m.Ontario
C$ 856
Find similar
United Airlines
1 Nov
ONT6:00 a.m.Ontario
26h 20m
2 stops
YUL11:20 a.m.Montreal Pierre Elliott Trudeau Intl
10 Nov
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
21h 47m
1 stop
ONT12:37 p.m.Ontario
C$ 870
Find similar
United Airlines
12 Nov
ONT1:45 p.m.Ontario
17h 35m
2 stops
YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl
27 Nov
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
21h 47m
1 stop
ONT12:37 p.m.Ontario
C$ 872
Find similar

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
29 Oct
ONT4:49 p.m.Ontario
15h 51m
2 stops
YUL11:40 a.m.Montreal Pierre Elliott Trudeau Intl
5 Nov
YUL2:29 p.m.Montreal Pierre Elliott Trudeau Intl
21h 32m
2 stops
ONT9:01 a.m.Ontario
C$ 732
Find similar
American Airlines
1 Nov
ONT6:15 a.m.Ontario
13h 29m
2 stops
YUL10:44 p.m.Montreal Pierre Elliott Trudeau Intl
10 Nov
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
17h 29m
2 stops
ONT9:59 p.m.Ontario
C$ 774
Find similar
American Airlines
20 Feb
ONT10:38 a.m.Ontario
25h 42m
2 stops
YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl
24 Feb
YUL2:25 p.m.Montreal Pierre Elliott Trudeau Intl
21h 17m
2 stops
ONT8:42 a.m.Ontario
C$ 858
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 16 September 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

Wed 29/10

4:49 p.m.-11:40 a.m.

2 stops15h 51m

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

2:29 p.m.-9:01 a.m.

2 stops21h 32m

C$ 732

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 1/11

6:15 a.m.-10:44 p.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

7:30 a.m.-9:59 p.m.

2 stops17h 29m

C$ 774

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 30/10

6:53 a.m.-11:22 p.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Thu 6/11

5:25 p.m.-11:50 p.m.

1 stop9h 25m

C$ 836

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 1/11

6:38 p.m.-5:49 p.m.

1 stop20h 11m

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

5:50 p.m.-12:37 p.m.

1 stop21h 47m

C$ 856

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 20/2

10:38 a.m.-3:20 p.m.

2 stops25h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

2:25 p.m.-8:42 a.m.

2 stops21h 17m

C$ 858

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 7/10

12:47 p.m.-9:50 a.m.

2 stops18h 03m

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

10:30 a.m.-10:42 p.m.

2 stops15h 12m

C$ 861

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 1/11

6:00 a.m.-11:20 a.m.

2 stops26h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

5:50 p.m.-12:37 p.m.

1 stop21h 47m

C$ 870

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 30/10

6:38 p.m.-4:49 p.m.

1 stop19h 11m

Montreal Pierre Elliott Trudeau Intl

Thu 6/11

5:25 p.m.-8:44 p.m.

1 stop30h 19m

C$ 953

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 15/11

11:45 a.m.-8:36 a.m.

2 stops17h 51m

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

12:45 p.m.-11:04 p.m.

1 stop13h 19m

C$ 989

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 15/11

11:45 a.m.-8:36 a.m.

2 stops17h 51m

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

9:26 a.m.-11:04 p.m.

2 stops16h 38m

C$ 996

Flights are sorted by cheapest round-trip flights first.

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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$ 232. 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$ 586.

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$ 319. 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 at noon because they tend to be around C$ 546. 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 13h 29m.

  • 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
Trois-Rivières
Sherbrooke
Brossard
Cornwall
Drummondville
Magog
Longueuil
North Hatley
Dorval
Bromont
Saint-Sauveur
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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