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Cheap flights from Ontario to Montreal from C$ 231

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 21/4. 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
1 adult, Economy, 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
11:59 p.m. - 2:44 p.m.
ONT
-
YUL
11h 45m
1 stop
American Airlines Logo
7:29 a.m. - 6:24 p.m.
YUL
-
ONT
13h 55m
2 stops
C$ 724American Airlines
Wed, 22 Apr - Tue, 28 Apr
American Airlines Logo
11:59 p.m. - 1:52 p.m.
ONT
-
YUL
10h 53m
2 stops
American Airlines Logo
7:29 a.m. - 6:24 p.m.
YUL
-
ONT
13h 55m
2 stops
C$ 731American Airlines
Wed, 22 Apr - Tue, 28 Apr
American Airlines Logo
11:59 p.m. - 2:44 p.m.
ONT
-
YUL
11h 45m
1 stop
American Airlines Logo
7:20 a.m. - 7:34 p.m.
YUL
-
ONT
15h 14m
2 stops
C$ 765American Airlines
Wed, 6 May - Sat, 9 May
American Airlines Logo
7:35 p.m. - 1:52 p.m.
ONT
-
YUL
15h 17m
2 stops
American Airlines Logo
7:20 a.m. - 7:34 p.m.
YUL
-
ONT
15h 14m
2 stops
C$ 772American Airlines
Sun, 10 May - Sat, 16 May
American Airlines Logo
4:54 p.m. - 11:35 a.m.
ONT
-
YUL
15h 41m
2 stops
American Airlines Logo
7:29 a.m. - 9:28 p.m.
YUL
-
ONT
16h 59m
1 stop
C$ 793American Airlines
Tue, 18 Aug - Sat, 22 Aug
United Airlines Logo
6:59 p.m. - 1:09 p.m.
ONT
-
YUL
15h 10m
2 stops
United Airlines Logo
5:00 p.m. - 10:35 p.m.
YUL
-
ONT
8h 35m
1 stop
C$ 797United Airlines
Tue, 5 May - Wed, 6 May
United Airlines Logo
5:10 a.m. - 5:30 p.m.
ONT
-
YUL
9h 20m
2 stops
United Airlines Logo
11:23 a.m. - 9:50 p.m.
YUL
-
ONT
13h 27m
2 stops
C$ 799United Airlines
Sat, 11 Apr - Fri, 17 Apr
American Airlines Logo
4:54 p.m. - 11:35 a.m.
ONT
-
YUL
15h 41m
2 stops
American Airlines Logo
7:29 a.m. - 4:24 p.m.
YUL
-
ONT
11h 55m
2 stops
C$ 800American Airlines
Tue, 18 Aug - Sat, 22 Aug
United Airlines Logo
6:59 p.m. - 1:09 p.m.
ONT
-
YUL
15h 10m
2 stops
United Airlines Logo
5:00 p.m. - 9:41 a.m.
YUL
-
ONT
19h 41m
2 stops
C$ 804United Airlines
Tue, 5 May - Wed, 6 May
United Airlines Logo
7:00 a.m. - 5:30 p.m.
ONT
-
YUL
7h 30m
1 stop
United Airlines Logo
5:00 p.m. - 10:35 p.m.
YUL
-
ONT
8h 35m
1 stop
C$ 825United Airlines
Tue, 5 May - Wed, 6 May

Air Canada flights from Ontario to Montreal

Our best Air Canada deals on Ontario to Montreal flight tickets
Air Canada
12 Apr
ONT5:10 a.m.Ontario
23h 26m
2 stops
YUL7:36 a.m.Montreal Pierre Elliott Trudeau Intl
18 Apr
YUL1:40 p.m.Montreal Pierre Elliott Trudeau Intl
9h 56m
2 stops
ONT8:36 p.m.Ontario
C$ 856
Air Canada
15 May
ONT5:00 a.m.Ontario
16h 31m
2 stops
YUL12:31 a.m.Montreal Pierre Elliott Trudeau Intl
22 May
YUL11:10 a.m.Montreal Pierre Elliott Trudeau Intl
12h 32m
2 stops
ONT8:42 p.m.Ontario
C$ 921
Air Canada
14 Apr
ONT5:10 a.m.Ontario
8h 42m
1 stop
YUL4:52 p.m.Montreal Pierre Elliott Trudeau Intl
15 Apr
YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl
18h 56m
1 stop
ONT9:56 a.m.Ontario
C$ 988

United Airlines flights from Ontario to Montreal

Our best United Airlines deals on Ontario to Montreal flight tickets
United Airlines
5 May
ONT6:59 p.m.Ontario
15h 10m
2 stops
YUL1:09 p.m.Montreal Pierre Elliott Trudeau Intl
6 May
YUL5:00 p.m.Montreal Pierre Elliott Trudeau Intl
8h 35m
1 stop
ONT10:35 p.m.Ontario
C$ 797
United Airlines
11 Apr
ONT5:10 a.m.Ontario
9h 20m
2 stops
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
17 Apr
YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl
13h 27m
2 stops
ONT9:50 p.m.Ontario
C$ 799
United Airlines
5 May
ONT6:59 p.m.Ontario
15h 10m
2 stops
YUL1:09 p.m.Montreal Pierre Elliott Trudeau Intl
6 May
YUL5:00 p.m.Montreal Pierre Elliott Trudeau Intl
19h 41m
2 stops
ONT9:41 a.m.Ontario
C$ 804

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Montreal 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 1 April 2026.
Use the filters below to find and compare flights from Ontario to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 22/4

11:59 p.m.-2:44 p.m.

1 stop11h 45m

Montreal Pierre Elliott Trudeau Intl

Tue 28/4

7:29 a.m.-6:24 p.m.

2 stops13h 55m

C$ 724

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 22/4

11:59 p.m.-1:52 p.m.

2 stops10h 53m

Montreal Pierre Elliott Trudeau Intl

Tue 28/4

7:29 a.m.-6:24 p.m.

2 stops13h 55m

C$ 731

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 6/5

11:59 p.m.-2:44 p.m.

1 stop11h 45m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

7:20 a.m.-7:34 p.m.

2 stops15h 14m

C$ 765

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 10/5

7:35 p.m.-1:52 p.m.

2 stops15h 17m

Montreal Pierre Elliott Trudeau Intl

Sat 16/5

7:20 a.m.-7:34 p.m.

2 stops15h 14m

C$ 772

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 18/8

4:54 p.m.-11:35 a.m.

2 stops15h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

7:29 a.m.-9:28 p.m.

1 stop16h 59m

C$ 793

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 5/5

6:59 p.m.-1:09 p.m.

2 stops15h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

5:00 p.m.-10:35 p.m.

1 stop8h 35m

C$ 797

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 11/4

5:10 a.m.-5:30 p.m.

2 stops9h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 17/4

11:23 a.m.-9:50 p.m.

2 stops13h 27m

C$ 799

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 18/8

4:54 p.m.-11:35 a.m.

2 stops15h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

7:29 a.m.-4:24 p.m.

2 stops11h 55m

C$ 800

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 5/5

6:59 p.m.-1:09 p.m.

2 stops15h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

5:00 p.m.-9:41 a.m.

2 stops19h 41m

C$ 804
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 5/5

7:00 a.m.-5:30 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

5:00 p.m.-10:35 p.m.

1 stop8h 35m

C$ 825

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

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?

Our data shows that Tuesday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 213. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Montreal for around C$ 745.

What is the cheapest time of day to depart on your flight to Montreal?

Our data shows that the cheapest Ontario to Montreal flights are usually those with departure times in the evening. Our users have found flights to Montreal in the evening for as low as C$ 394. Flights in the morning are often more expensive with an average ticket price of C$ 589.

When to book flights from Ontario to Montreal

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Montreal according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Montreal (ONT to YMQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Montreal

Fastest flight time

7h 30m

Direct flights

None
The fastest flight from Ontario to Montreal takes 7h 30m
There are no direct flights from Ontario to Montreal. There are no popular flight routes from Ontario to Montreal.
Search flight deals

Frequently asked questions about flying from Ontario to Montreal

  • How far is Ontario to Montreal by plane?

    The straight-line distance from Ontario to Montreal is 3917.7 km. Typically, this will take 7h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Montreal?

    Prices for flights from Ontario Airport to Montreal refresh daily.

  • How old do you have to be to fly from Ontario Airport to Montreal?

    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.

  • What documentation or ID do you need to fly to Montreal?

    The travel and health documents required for your trip to Montreal 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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?

Flights from Ontario to Montreal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Ontario and Montreal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Montreal from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Airports listed have a maximum distance of 15.1 km from Montreal
Montreal St Hubert Airport
Montreal Pierre Elliott Trudeau Intl Airport