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Cheap flights from Ontario to Montreal from C$ 259

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 8/10. 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
1:10 p.m. - 12:24 p.m.ONT-YUL
20h 14m2 stops
American Airlines Logo
7:50 a.m. - 6:16 p.m.YUL-ONT
13h 26m2 stops
C$ 720American Airlines
Find Deal
Sat, 6 Sep - Sat, 13 Sep
American Airlines Logo
6:10 a.m. - 10:57 p.m.ONT-YUL
13h 47m2 stops
American Airlines Logo
7:25 a.m. - 6:16 p.m.YUL-ONT
13h 51m2 stops
C$ 800American Airlines
Find Deal
Sun, 7 Sep - Sat, 13 Sep
Delta Logo
7:05 a.m. - 10:07 a.m.ONT-YUL
24h 02m2 stops
Delta Logo
7:00 a.m. - 8:57 a.m.YUL-ONT
28h 57m2 stops
C$ 862Delta
Find Deal
Sat, 6 Sep - Sat, 13 Sep
United Airlines Logo
1:42 p.m. - 8:16 a.m.ONT-YUL
15h 34m1 stop
United Airlines Logo
8:05 a.m. - 12:13 p.m.YUL-ONT
31h 08m1 stop
C$ 906United Airlines
Find Deal
Tue, 26 Aug - Mon, 1 Sep
Logo
6:00 a.m. - 8:05 p.m.ONT-YUL
11h 05m1 stop
Logo
8:05 a.m. - 8:33 p.m.YUL-ONT
15h 28m1 stop
C$ 929
Find Deal
Sun, 7 Sep - Sat, 13 Sep
United Airlines Logo
6:00 a.m. - 8:16 a.m.ONT-YUL
23h 16m1 stop
United Airlines Logo
8:05 a.m. - 12:13 p.m.YUL-ONT
31h 08m1 stop
C$ 945United Airlines
Find Deal
Wed, 20 Aug - Sun, 24 Aug
Delta Logo
5:05 p.m. - 4:00 p.m.ONT-YUL
19h 55m2 stops
Delta Logo
7:00 a.m. - 10:46 p.m.YUL-ONT
18h 46m2 stops
C$ 955Delta
Find Deal
Sun, 23 Nov - Fri, 28 Nov
Air Canada Logo
6:50 p.m. - 8:16 a.m.ONT-YUL
10h 26m1 stop
Air Canada Logo
4:05 p.m. - 8:43 p.m.YUL-ONT
7h 38m1 stop
C$ 1,059Air Canada
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Fri, 12 Sep - Fri, 19 Sep
Logo
6:00 a.m. - 12:37 a.m.ONT-YUL
15h 37m3 stops
Logo
6:55 p.m. - 5:00 p.m.YUL-ONT
25h 05m2 stops
C$ 1,090
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Air Canada Logo
5:10 a.m. - 3:26 p.m.ONT-YUL
7h 16m1 stop
Air Canada Logo
5:00 a.m. - 8:43 p.m.YUL-ONT
18h 43m2 stops
C$ 1,245Air Canada
Find Deal
Sun, 7 Sep - Sun, 14 Sep

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
6 Sep
ONT1:10 p.m.Ontario
20h 14m
2 stops
YUL12:24 p.m.Montreal Pierre Elliott Trudeau Intl
13 Sep
YUL7:50 a.m.Montreal Pierre Elliott Trudeau Intl
13h 26m
2 stops
ONT6:16 p.m.Ontario
C$ 720
Find similar
American Airlines
7 Sep
ONT6:10 a.m.Ontario
13h 47m
2 stops
YUL10:57 p.m.Montreal Pierre Elliott Trudeau Intl
13 Sep
YUL7:25 a.m.Montreal Pierre Elliott Trudeau Intl
13h 51m
2 stops
ONT6:16 p.m.Ontario
C$ 800
Find similar
American Airlines
6 Sep
ONT10:35 p.m.Ontario
21h 07m
1 stop
YUL10:42 p.m.Montreal Pierre Elliott Trudeau Intl
13 Sep
YUL7:50 a.m.Montreal Pierre Elliott Trudeau Intl
13h 26m
2 stops
ONT6:16 p.m.Ontario
C$ 895
Find similar

Delta flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

Our best Delta deals on Ontario to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
Delta
6 Sep
ONT7:05 a.m.Ontario
24h 02m
2 stops
YUL10:07 a.m.Montreal Pierre Elliott Trudeau Intl
13 Sep
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
28h 57m
2 stops
ONT8:57 a.m.Ontario
C$ 862
Find similar
Delta
23 Nov
ONT5:05 p.m.Ontario
19h 55m
2 stops
YUL4:00 p.m.Montreal Pierre Elliott Trudeau Intl
28 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
18h 46m
2 stops
ONT10:46 p.m.Ontario
C$ 955
Find similar
Delta
27 Aug
ONT6:05 a.m.Ontario
14h 11m
2 stops
YUL11:16 p.m.Montreal Pierre Elliott Trudeau Intl
31 Aug
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
18h 40m
2 stops
ONT10:40 p.m.Ontario
C$ 994
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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 31 July 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 6/9

1:10 p.m.-12:24 p.m.

2 stops20h 14m

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

7:50 a.m.-6:16 p.m.

2 stops13h 26m

C$ 720

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 7/9

6:10 a.m.-10:57 p.m.

2 stops13h 47m

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

7:25 a.m.-6:16 p.m.

2 stops13h 51m

C$ 800

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 6/9

7:05 a.m.-10:07 a.m.

2 stops24h 02m

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

7:00 a.m.-8:57 a.m.

2 stops28h 57m

C$ 862

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 26/8

1:42 p.m.-8:16 a.m.

1 stop15h 34m

Montreal Pierre Elliott Trudeau Intl

Mon 1/9

8:05 a.m.-12:13 p.m.

1 stop31h 08m

C$ 906

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 7/9

6:00 a.m.-8:05 p.m.

1 stop11h 05m

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

8:05 a.m.-8:33 p.m.

1 stop15h 28m

C$ 929

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 20/8

6:00 a.m.-8:16 a.m.

1 stop23h 16m

Montreal Pierre Elliott Trudeau Intl

Sun 24/8

8:05 a.m.-12:13 p.m.

1 stop31h 08m

C$ 945

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 23/11

5:05 p.m.-4:00 p.m.

2 stops19h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

7:00 a.m.-10:46 p.m.

2 stops18h 46m

C$ 955

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 12/9

6:50 p.m.-8:16 a.m.

1 stop10h 26m

Montreal Pierre Elliott Trudeau Intl

Fri 19/9

4:05 p.m.-8:43 p.m.

1 stop7h 38m

C$ 1,059

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 12/9

6:00 a.m.-12:37 a.m.

3 stops15h 37m

Montreal Pierre Elliott Trudeau Intl

Fri 19/9

6:55 p.m.-5:00 p.m.

2 stops25h 05m

C$ 1,090

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 7/9

5:10 a.m.-3:26 p.m.

1 stop7h 16m

Montreal Pierre Elliott Trudeau Intl

Sun 14/9

5:00 a.m.-8:43 p.m.

2 stops18h 43m

C$ 1,245

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 Saturday when prices can be found for as low as C$ 320. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday 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$ 561.

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$ 547. 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

Best price found

C$ 259

Fastest flight time

7h 16m

Direct flights

None
The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from Ontario in the past 72 hours is C$ 259. The best round-trip flight deal from Ontario to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is C$ 720.
The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 7h 16m
There are no direct flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport. Popular non-direct route for this connection is Ontario Airport - 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 16m.

  • 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
Longueuil
Dorval
Magog
Bromont
Saint-Sauveur
Saint-Jean-sur-Richelieu
Boucherville
North Hatley
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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