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Cheap flights from Ontario to Montreal from C$ 307

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 30/9. 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
7:05 a.m. - 10:53 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
12h 48m2 stops Dallas/Fort Worth Charlotte Douglas
American Airlines Logo
2:30 p.m. - 10:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
11h 29m2 stops Charlotte Douglas Dallas/Fort Worth
C$ 680American Airlines
Sat, 29 Aug - Sat, 5 Sep
American Airlines Logo
6:00 a.m. - 9:44 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
12h 44m2 stops Dallas/Fort Worth Philadelphia
American Airlines Logo
2:30 p.m. - 10:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
11h 29m2 stops Charlotte Douglas Dallas/Fort Worth
C$ 681American Airlines
Sat, 29 Aug - Sat, 5 Sep
Delta Logo
12:00 p.m. - 11:52 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
8h 52m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 a.m. - 10:23 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
18h 23m2 stops Minneapolis St Paul Salt Lake City
C$ 708Delta
Sat, 29 Aug - Sat, 5 Sep
Delta Logo
6:00 a.m. - 11:40 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
14h 40m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
9:30 a.m. - 8:24 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
13h 54m2 stops New York LaGuardia Atlanta Hartsfield-Jackson
C$ 716Delta
Sat, 5 Sep - Wed, 9 Sep
Delta Logo
12:17 p.m. - 11:50 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
8h 33m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:44 p.m. - 10:24 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
12h 40m1 stop Atlanta Hartsfield-Jackson
C$ 729Delta
Tue, 22 Sep - Thu, 1 Oct
Air Canada Logo
1:56 p.m. - 8:16 a.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
15h 20m1 stop San Francisco
Air Canada Logo
4:55 p.m. - 10:35 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
8h 40m1 stop Chicago O'Hare Intl
C$ 760Air Canada
Sat, 29 Aug - Sat, 5 Sep
Air Canada Logo
11:00 a.m. - 8:16 a.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
18h 16m1 stop San Francisco
Air Canada Logo
6:10 a.m. - 6:12 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
15h 02m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
C$ 761Air Canada
Sat, 22 Aug - Sat, 29 Aug
Delta Logo
12:00 p.m. - 11:52 p.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
8h 52m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:46 p.m. - 9:52 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
10h 06m1 stop Atlanta Hartsfield-Jackson
C$ 764Delta
Mon, 31 Aug - Fri, 4 Sep
Air Canada Logo
1:18 p.m. - 1:52 a.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
9h 34m2 stops Denver Intl Toronto Pearson Intl
Air Canada Logo
6:00 a.m. - 3:41 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
12h 41m2 stops Newark San Francisco
C$ 772Air Canada
Sat, 22 Aug - Sat, 29 Aug
Air Canada Logo
1:56 p.m. - 8:16 a.m.ONT  Ontario-YUL Montreal Pierre Elliott Trudeau Intl
15h 20m1 stop San Francisco
Air Canada Logo
8:15 a.m. - 8:53 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ONT Ontario
15h 38m1 stop Denver Intl
C$ 773Air Canada
Sat, 29 Aug - Sat, 5 Sep

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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 Aug
ONT7:05 a.m.Ontario
12h 48m
2 stops
YUL10:53 p.m.Montreal Pierre Elliott Trudeau Intl
5 Sep
YUL2:30 p.m.Montreal Pierre Elliott Trudeau Intl
11h 29m
2 stops
ONT10:59 p.m.Ontario
C$ 680
American Airlines
29 Aug
ONT6:00 a.m.Ontario
12h 44m
2 stops
YUL9:44 p.m.Montreal Pierre Elliott Trudeau Intl
5 Sep
YUL2:30 p.m.Montreal Pierre Elliott Trudeau Intl
11h 29m
2 stops
ONT10:59 p.m.Ontario
C$ 681

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
29 Aug
ONT12:00 p.m.Ontario
8h 52m
1 stop
YUL11:52 p.m.Montreal Pierre Elliott Trudeau Intl
5 Sep
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
18h 23m
2 stops
ONT10:23 p.m.Ontario
C$ 708
Delta
5 Sep
ONT6:00 a.m.Ontario
14h 40m
2 stops
YUL11:40 p.m.Montreal Pierre Elliott Trudeau Intl
9 Sep
YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl
13h 54m
2 stops
ONT8:24 p.m.Ontario
C$ 716
Delta
22 Sep
ONT12:17 p.m.Ontario
8h 33m
1 stop
YUL11:50 p.m.Montreal Pierre Elliott Trudeau Intl
1 Oct
YUL12:44 p.m.Montreal Pierre Elliott Trudeau Intl
12h 40m
1 stop
ONT10:24 p.m.Ontario
C$ 729

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 August 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 Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 29/8

7:05 a.m.-10:53 p.m.

2 stops12h 48m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

2:30 p.m.-10:59 p.m.

2 stops11h 29m

C$ 680

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 29/8

6:00 a.m.-9:44 p.m.

2 stops12h 44m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

2:30 p.m.-10:59 p.m.

2 stops11h 29m

C$ 681

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 29/8

12:00 p.m.-11:52 p.m.

1 stop8h 52m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

7:00 a.m.-10:23 p.m.

2 stops18h 23m

C$ 708

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 5/9

6:00 a.m.-11:40 p.m.

2 stops14h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

9:30 a.m.-8:24 p.m.

2 stops13h 54m

C$ 716

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Tue 22/9

12:17 p.m.-11:50 p.m.

1 stop8h 33m

Montreal Pierre Elliott Trudeau Intl

Thu 1/10

12:44 p.m.-10:24 p.m.

1 stop12h 40m

C$ 729

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 29/8

1:56 p.m.-8:16 a.m.

1 stop15h 20m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

4:55 p.m.-10:35 p.m.

1 stop8h 40m

C$ 760

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 22/8

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

1 stop18h 16m

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

6:10 a.m.-6:12 p.m.

2 stops15h 02m

C$ 761
Quickest round-trip

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Mon 31/8

12:00 p.m.-11:52 p.m.

1 stop8h 52m

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

2:46 p.m.-9:52 p.m.

1 stop10h 06m

C$ 764

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 22/8

1:18 p.m.-1:52 a.m.

2 stops9h 34m

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

6:00 a.m.-3:41 p.m.

2 stops12h 41m

C$ 772

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Sat 29/8

1:56 p.m.-8:16 a.m.

1 stop15h 20m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

8:15 a.m.-8:53 p.m.

1 stop15h 38m

C$ 773

Flights are sorted by cheapest round-trip flights 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 Sunday when prices can be found for as low as C$ 231. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday 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$ 747.

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$ 365. 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$ 660. 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 29m

Direct flights

None
The fastest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport takes 7h 29m
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 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
Trois-Rivières
Brossard
Dorval
Sherbrooke
Montebello
Cornwall
Longueuil
Saint-Sauveur
Boucherville
North Hatley
Drummondville
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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