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Cheap flights from Ontario to Montreal from C$ 316

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 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:10 p.m. - 10:53 p.m.
ONT
-
YUL
21h 43m
1 stop
American Airlines Logo
3:45 p.m. - 1:31 p.m.
YUL
-
ONT
24h 46m
1 stop
C$ 731American Airlines
Tue, 4 Aug - Tue, 11 Aug
American Airlines Logo
12:33 p.m. - 2:44 p.m.
ONT
-
YUL
23h 11m
1 stop
American Airlines Logo
3:45 p.m. - 9:34 a.m.
YUL
-
ONT
20h 49m
1 stop
C$ 736American Airlines
Fri, 7 Aug - Fri, 14 Aug
American Airlines Logo
7:15 p.m. - 11:43 a.m.
ONT
-
YUL
13h 28m
2 stops
American Airlines Logo
7:29 a.m. - 6:15 p.m.
YUL
-
ONT
13h 46m
2 stops
C$ 738American Airlines
Tue, 4 Aug - Tue, 11 Aug
American Airlines Logo
12:33 p.m. - 9:46 a.m.
ONT
-
YUL
18h 13m
2 stops
American Airlines Logo
3:45 p.m. - 9:34 a.m.
YUL
-
ONT
20h 49m
1 stop
C$ 742American Airlines
Fri, 7 Aug - Fri, 14 Aug
American Airlines Logo
12:59 p.m. - 11:43 a.m.
ONT
-
YUL
19h 44m
2 stops
American Airlines Logo
3:45 p.m. - 1:31 p.m.
YUL
-
ONT
24h 46m
1 stop
C$ 752American Airlines
Sat, 8 Aug - Tue, 11 Aug
Lufthansa Logo
11:00 a.m. - 8:16 a.m.
ONT
-
YUL
18h 16m
1 stop
Lufthansa Logo
9:45 a.m. - 10:59 p.m.
YUL
-
ONT
16h 14m
1 stop
C$ 758Lufthansa
Sat, 15 Aug - Sun, 13 Sep
American Airlines Logo
2:43 p.m. - 11:43 a.m.
ONT
-
YUL
18h 00m
2 stops
American Airlines Logo
10:31 a.m. - 6:47 p.m.
YUL
-
ONT
11h 16m
2 stops
C$ 759American Airlines
Sat, 8 Aug - Wed, 12 Aug
Lufthansa Logo
6:00 a.m. - 10:06 p.m.
ONT
-
YUL
13h 06m
2 stops
Lufthansa Logo
11:23 a.m. - 10:37 p.m.
YUL
-
ONT
14h 14m
2 stops
C$ 790Lufthansa
Mon, 6 Jul - Tue, 14 Jul
Delta Logo
10:59 p.m. - 11:44 a.m.
ONT
-
YUL
9h 45m
1 stop
Delta Logo
12:45 p.m. - 6:18 p.m.
YUL
-
ONT
8h 33m
1 stop
C$ 802Delta
Tue, 27 Oct - Wed, 4 Nov
British Airways Logo
12:35 p.m. - 2:41 p.m.
ONT
-
YUL
23h 06m
1 stop
British Airways Logo
3:48 p.m. - 9:29 a.m.
YUL
-
ONT
20h 41m
1 stop
C$ 803British Airways
Sat, 4 Jul - Fri, 10 Jul

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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
31 Oct
ONT5:00 a.m.Ontario
13h 42m
2 stops
YUL9:42 p.m.Montreal Pierre Elliott Trudeau Intl
7 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
16h 06m
2 stops
ONT8:06 p.m.Ontario
C$ 838
United Airlines
4 Jul
ONT6:10 a.m.Ontario
8h 20m
1 stop
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
8 Jul
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
8h 56m
1 stop
ONT10:51 p.m.Ontario
C$ 843
United Airlines
4 Jul
ONT6:10 a.m.Ontario
12h 56m
2 stops
YUL10:06 p.m.Montreal Pierre Elliott Trudeau Intl
8 Jul
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
8h 56m
1 stop
ONT10:51 p.m.Ontario
C$ 850

WestJet flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best WestJet deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
WestJet
10 Oct
ONT11:55 a.m.Ontario
16h 10m
2 stops
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
13 Oct
YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl
29h 43m
2 stops
ONT10:43 p.m.Ontario
C$ 899
WestJet
2 Oct
ONT11:44 a.m.Ontario
16h 21m
2 stops
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
6 Oct
YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl
29h 43m
2 stops
ONT10:43 p.m.Ontario
C$ 922
WestJet
26 Aug
ONT6:20 a.m.Ontario
21h 45m
2 stops
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
2 Sep
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
32h 15m
2 stops
ONT10:45 p.m.Ontario
C$ 926

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 24 June 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

Tue 4/8

10:10 p.m.-10:53 p.m.

1 stop21h 43m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

3:45 p.m.-1:31 p.m.

1 stop24h 46m

C$ 731

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 7/8

12:33 p.m.-2:44 p.m.

1 stop23h 11m

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

3:45 p.m.-9:34 a.m.

1 stop20h 49m

C$ 736

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 4/8

7:15 p.m.-11:43 a.m.

2 stops13h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

7:29 a.m.-6:15 p.m.

2 stops13h 46m

C$ 738

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 7/8

12:33 p.m.-9:46 a.m.

2 stops18h 13m

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

3:45 p.m.-9:34 a.m.

1 stop20h 49m

C$ 742

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 8/8

12:59 p.m.-11:43 a.m.

2 stops19h 44m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

3:45 p.m.-1:31 p.m.

1 stop24h 46m

C$ 752

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 15/8

11:00 a.m.-8:16 a.m.

1 stop18h 16m

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

9:45 a.m.-10:59 p.m.

1 stop16h 14m

C$ 758

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 8/8

2:43 p.m.-11:43 a.m.

2 stops18h 00m

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

10:31 a.m.-6:47 p.m.

2 stops11h 16m

C$ 759

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Mon 6/7

6:00 a.m.-10:06 p.m.

2 stops13h 06m

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

11:23 a.m.-10:37 p.m.

2 stops14h 14m

C$ 790
Quickest round-trip

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 27/10

10:59 p.m.-11:44 a.m.

1 stop9h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 4/11

12:45 p.m.-6:18 p.m.

1 stop8h 33m

C$ 802

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 4/7

12:35 p.m.-2:41 p.m.

1 stop23h 06m

Montreal Pierre Elliott Trudeau Intl

Fri 10/7

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

1 stop20h 41m

C$ 803

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$ 218. 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$ 692.

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$ 425. 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$ 648. 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

7h 28m

Direct flights

None
The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 7h 28m
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.
Search flight deals

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 7h 28m.

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

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