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Cheap flights from Ontario to Montreal from C$ 321

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 22/7. 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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Find the cheapest flights from Ontario to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:10 a.m. - 10:56 p.m.
ONT
-
YUL
13h 46m
2 stops
American Airlines Logo
7:17 a.m. - 6:19 p.m.
YUL
-
ONT
14h 02m
2 stops
C$ 799American Airlines
Wed, 15 Jul - Tue, 21 Jul
American Airlines Logo
7:13 p.m. - 11:42 a.m.
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
7:29 a.m. - 6:21 p.m.
YUL
-
ONT
13h 52m
2 stops
C$ 816American Airlines
Tue, 23 Jun - Tue, 30 Jun
Delta Logo
10:00 p.m. - 6:54 p.m.
ONT
-
YUL
17h 54m
2 stops
Delta Logo
7:44 p.m. - 6:29 p.m.
YUL
-
ONT
25h 45m
2 stops
C$ 871Delta
Mon, 10 Aug - Fri, 21 Aug
Delta Logo
11:56 a.m. - 11:59 p.m.
ONT
-
YUL
9h 03m
1 stop
Delta Logo
7:44 p.m. - 10:42 a.m.
YUL
-
ONT
17h 58m
2 stops
C$ 885Delta
Mon, 10 Aug - Mon, 17 Aug
American Airlines Logo
7:14 p.m. - 11:43 a.m.
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
3:48 p.m. - 9:29 a.m.
YUL
-
ONT
20h 41m
1 stop
C$ 890American Airlines
Mon, 27 Jul - Mon, 3 Aug
Delta Logo
7:05 a.m. - 11:35 p.m.
ONT
-
YUL
13h 30m
2 stops
Delta Logo
7:44 p.m. - 9:52 p.m.
YUL
-
ONT
29h 08m
2 stops
C$ 892Delta
Tue, 11 Aug - Thu, 20 Aug
American Airlines Logo
7:14 p.m. - 11:43 a.m.
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
7:17 a.m. - 6:19 p.m.
YUL
-
ONT
14h 02m
2 stops
C$ 897American Airlines
Tue, 7 Jul - Tue, 14 Jul
American Airlines Logo
7:13 p.m. - 11:42 a.m.
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
2:30 p.m. - 10:36 p.m.
YUL
-
ONT
11h 06m
1 stop
C$ 907American Airlines
Tue, 23 Jun - Tue, 30 Jun
American Airlines Logo
10:00 p.m. - 10:59 p.m.
ONT
-
YUL
21h 59m
1 stop
American Airlines Logo
10:30 a.m. - 10:36 p.m.
YUL
-
ONT
15h 06m
2 stops
C$ 913American Airlines
Sat, 6 Jun - Sat, 13 Jun
American Airlines Logo
7:13 p.m. - 2:44 p.m.
ONT
-
YUL
16h 31m
2 stops
American Airlines Logo
10:30 a.m. - 10:36 p.m.
YUL
-
ONT
15h 06m
2 stops
C$ 920American Airlines
Thu, 4 Jun - Sat, 13 Jun

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
15 Jul
ONT6:10 a.m.Ontario
13h 46m
2 stops
YUL10:56 p.m.Montreal Pierre Elliott Trudeau Intl
21 Jul
YUL7:17 a.m.Montreal Pierre Elliott Trudeau Intl
14h 02m
2 stops
ONT6:19 p.m.Ontario
C$ 799
American Airlines
23 Jun
ONT7:13 p.m.Ontario
13h 29m
2 stops
YUL11:42 a.m.Montreal Pierre Elliott Trudeau Intl
30 Jun
YUL7:29 a.m.Montreal Pierre Elliott Trudeau Intl
13h 52m
2 stops
ONT6:21 p.m.Ontario
C$ 816
American Airlines
27 Jul
ONT7:14 p.m.Ontario
13h 29m
2 stops
YUL11:43 a.m.Montreal Pierre Elliott Trudeau Intl
3 Aug
YUL3:48 p.m.Montreal Pierre Elliott Trudeau Intl
20h 41m
1 stop
ONT9:29 a.m.Ontario
C$ 890

Air Canada flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best Air Canada deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
Air Canada
3 Aug
ONT5:00 a.m.Ontario
7h 28m
1 stop
YUL3:28 p.m.Montreal Pierre Elliott Trudeau Intl
11 Aug
YUL8:15 a.m.Montreal Pierre Elliott Trudeau Intl
7h 23m
1 stop
ONT12:38 p.m.Ontario
C$ 937
Air Canada
2 Aug
ONT5:00 a.m.Ontario
7h 28m
1 stop
YUL3:28 p.m.Montreal Pierre Elliott Trudeau Intl
12 Aug
YUL8:15 a.m.Montreal Pierre Elliott Trudeau Intl
7h 23m
1 stop
ONT12:38 p.m.Ontario
C$ 1,035
Air Canada
23 May
ONT5:00 a.m.Ontario
7h 28m
1 stop
YUL3:28 p.m.Montreal Pierre Elliott Trudeau Intl
10 Jun
YUL8:10 a.m.Montreal Pierre Elliott Trudeau Intl
7h 37m
1 stop
ONT12:47 p.m.Ontario
C$ 1,313

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 10 May 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 15/7

6:10 a.m.-10:56 p.m.

2 stops13h 46m

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

7:17 a.m.-6:19 p.m.

2 stops14h 02m

C$ 799

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 23/6

7:13 p.m.-11:42 a.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Tue 30/6

7:29 a.m.-6:21 p.m.

2 stops13h 52m

C$ 816

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 10/8

10:00 p.m.-6:54 p.m.

2 stops17h 54m

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

7:44 p.m.-6:29 p.m.

2 stops25h 45m

C$ 871

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 10/8

11:56 a.m.-11:59 p.m.

1 stop9h 03m

Montreal Pierre Elliott Trudeau Intl

Mon 17/8

7:44 p.m.-10:42 a.m.

2 stops17h 58m

C$ 885

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 27/7

7:14 p.m.-11:43 a.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

3:48 p.m.-9:29 a.m.

1 stop20h 41m

C$ 890

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 11/8

7:05 a.m.-11:35 p.m.

2 stops13h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

7:44 p.m.-9:52 p.m.

2 stops29h 08m

C$ 892

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 7/7

7:14 p.m.-11:43 a.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

7:17 a.m.-6:19 p.m.

2 stops14h 02m

C$ 897
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 23/6

7:13 p.m.-11:42 a.m.

2 stops13h 29m

Montreal Pierre Elliott Trudeau Intl

Tue 30/6

2:30 p.m.-10:36 p.m.

1 stop11h 06m

C$ 907

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 6/6

10:00 p.m.-10:59 p.m.

1 stop21h 59m

Montreal Pierre Elliott Trudeau Intl

Sat 13/6

10:30 a.m.-10:36 p.m.

2 stops15h 06m

C$ 913

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 4/6

7:13 p.m.-2:44 p.m.

2 stops16h 31m

Montreal Pierre Elliott Trudeau Intl

Sat 13/6

10:30 a.m.-10:36 p.m.

2 stops15h 06m

C$ 920

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 on your flight to Montreal Pierre Elliott Trudeau Intl Airport is on a Tuesday when prices can be found for as low as C$ 210. 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$ 600.

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 C$ 331. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the evening 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$ 525. 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

Fastest flight time

8h 20m

Direct flights

None
The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 8h 20m
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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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 3903.0 km between Ontario and Montreal Pierre Elliott Trudeau Intl. By plane, this route typically takes 8h 20m.

  • 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
Trois-Rivières
Sherbrooke
Montebello
Brossard
Dorval
Longueuil
Cornwall
North Hatley
Boucherville
Drummondville
Saint-Sauveur
Magog
Bromont
Sutton
Saint-Jean-sur-Richelieu
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.

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