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Cheap flights from Ontario to Montreal from C$ 304

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 1/6. 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
4:52 p.m. - 11:44 a.m.
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
7:29 a.m. - 6:30 p.m.
YUL
-
ONT
14h 01m
2 stops
C$ 681American Airlines
Sat, 9 May - Wed, 13 May
American Airlines Logo
2:08 p.m. - 2:44 p.m.
ONT
-
YUL
21h 36m
1 stop
American Airlines Logo
7:29 a.m. - 6:30 p.m.
YUL
-
ONT
14h 01m
2 stops
C$ 778American Airlines
Sat, 9 May - Wed, 13 May
American Airlines Logo
10:26 p.m. - 10:58 p.m.
ONT
-
YUL
21h 32m
1 stop
American Airlines Logo
7:45 a.m. - 6:24 p.m.
YUL
-
ONT
13h 39m
2 stops
C$ 786American Airlines
Tue, 7 Apr - Tue, 21 Apr
American Airlines Logo
4:52 p.m. - 11:44 a.m.
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
7:45 a.m. - 6:24 p.m.
YUL
-
ONT
13h 39m
2 stops
C$ 795American Airlines
Tue, 7 Apr - Tue, 21 Apr
American Airlines Logo
4:52 p.m. - 11:44 a.m.
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
7:29 a.m. - 6:30 p.m.
YUL
-
ONT
14h 01m
2 stops
C$ 801American Airlines
Sat, 9 May - Wed, 13 May
American Airlines Logo
4:52 p.m. - 11:44 a.m.
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
2:32 p.m. - 9:07 p.m.
YUL
-
ONT
9h 35m
1 stop
C$ 804American Airlines
Wed, 6 May - Sat, 9 May
American Airlines Logo
4:52 p.m. - 11:44 a.m.
ONT
-
YUL
15h 52m
2 stops
American Airlines Logo
7:45 a.m. - 6:38 p.m.
YUL
-
ONT
13h 53m
2 stops
C$ 811American Airlines
Wed, 6 May - Sat, 9 May
American Airlines Logo
11:59 p.m. - 2:44 p.m.
ONT
-
YUL
11h 45m
1 stop
American Airlines Logo
7:29 a.m. - 6:30 p.m.
YUL
-
ONT
14h 01m
2 stops
C$ 814American Airlines
Sat, 9 May - Wed, 13 May
American Airlines Logo
6:15 a.m. - 10:58 p.m.
ONT
-
YUL
13h 43m
2 stops
American Airlines Logo
2:32 p.m. - 11:46 p.m.
YUL
-
ONT
12h 14m
2 stops
C$ 821American Airlines
Tue, 12 May - Fri, 15 May
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$ 840United Airlines
Tue, 5 May - Wed, 6 May

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
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$ 840
United Airlines
9 Apr
ONT7:00 a.m.Ontario
7h 30m
1 stop
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
15 Apr
YUL5:00 p.m.Montreal Pierre Elliott Trudeau Intl
8h 31m
1 stop
ONT10:31 p.m.Ontario
C$ 847
United Airlines
9 Apr
ONT7:00 a.m.Ontario
7h 30m
1 stop
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
13 Apr
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
17h 36m
2 stops
ONT8:36 p.m.Ontario
C$ 882

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
10 Apr
ONT10:25 p.m.Ontario
10h 12m
1 stop
YUL11:37 a.m.Montreal Pierre Elliott Trudeau Intl
16 Apr
YUL12:42 p.m.Montreal Pierre Elliott Trudeau Intl
8h 51m
1 stop
ONT6:33 p.m.Ontario
C$ 840
Delta
26 Aug
ONT12:00 p.m.Ontario
8h 56m
1 stop
YUL11:56 p.m.Montreal Pierre Elliott Trudeau Intl
9 Sep
YUL12:45 p.m.Montreal Pierre Elliott Trudeau Intl
8h 16m
1 stop
ONT6:01 p.m.Ontario
C$ 868
Delta
9 Apr
ONT6:00 a.m.Ontario
14h 40m
2 stops
YUL11:40 p.m.Montreal Pierre Elliott Trudeau Intl
15 Apr
YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl
14h 30m
2 stops
ONT9:00 p.m.Ontario
C$ 876

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 28 March 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

Sat 9/5

4:52 p.m.-11:44 a.m.

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

7:29 a.m.-6:30 p.m.

2 stops14h 01m

C$ 681

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 9/5

2:08 p.m.-2:44 p.m.

1 stop21h 36m

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

7:29 a.m.-6:30 p.m.

2 stops14h 01m

C$ 778

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 7/4

10:26 p.m.-10:58 p.m.

1 stop21h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

7:45 a.m.-6:24 p.m.

2 stops13h 39m

C$ 786

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 7/4

4:52 p.m.-11:44 a.m.

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

7:45 a.m.-6:24 p.m.

2 stops13h 39m

C$ 794

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 9/5

4:52 p.m.-11:44 a.m.

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

7:29 a.m.-6:30 p.m.

2 stops14h 01m

C$ 801

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 6/5

4:52 p.m.-11:44 a.m.

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

2:32 p.m.-9:07 p.m.

1 stop9h 35m

C$ 804

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 6/5

4:52 p.m.-11:44 a.m.

2 stops15h 52m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

7:45 a.m.-6:38 p.m.

2 stops13h 53m

C$ 811

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 9/5

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

1 stop11h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

7:29 a.m.-6:30 p.m.

2 stops14h 01m

C$ 814

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 12/5

6:15 a.m.-10:58 p.m.

2 stops13h 43m

Montreal Pierre Elliott Trudeau Intl

Fri 15/5

2:32 p.m.-11:46 p.m.

2 stops12h 14m

C$ 821
Quickest round-trip

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$ 840

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$ 213. 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$ 685.

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$ 394. 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$ 591. 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

  • 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
Montebello
Sherbrooke
Brossard
Longueuil
Dorval
Cornwall
Boucherville
North Hatley
Magog
Saint-Sauveur
Drummondville
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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