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Cheap flights from Montreal to Los Angeles from C$ 340

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Los Angeles departing on 11/6. 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

Find the cheapest flights from Montreal to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 a.m. - 9:55 p.m.
YUL
-
ONT
18h 55m
2 stops
United Airlines Logo
6:30 p.m. - 4:10 p.m.
ONT
-
YUL
18h 40m
2 stops
C$ 664United Airlines
Sat, 6 Jun - Sun, 7 Jun
United Airlines Logo
9:45 a.m. - 10:46 p.m.
YUL
-
ONT
16h 01m
1 stop
United Airlines Logo
6:30 p.m. - 4:10 p.m.
ONT
-
YUL
18h 40m
2 stops
C$ 666United Airlines
Sat, 6 Jun - Sun, 7 Jun
Delta Logo
7:45 p.m. - 11:04 a.m.
YUL
-
ONT
18h 19m
2 stops
Delta Logo
7:00 a.m. - 8:43 a.m.
ONT
-
YUL
22h 43m
2 stops
C$ 667Delta
Tue, 8 Sep - Tue, 15 Sep
Delta Logo
12:40 p.m. - 9:48 p.m.
YUL
-
ONT
12h 08m
1 stop
Delta Logo
12:07 p.m. - 11:57 p.m.
ONT
-
YUL
8h 50m
1 stop
C$ 674Delta
Fri, 15 May - Sun, 17 May
United Airlines Logo
4:55 p.m. - 10:51 p.m.
YUL
-
ONT
8h 56m
1 stop
United Airlines Logo
5:45 a.m. - 12:13 a.m.
ONT
-
YUL
15h 28m
2 stops
C$ 675United Airlines
Wed, 27 May - Wed, 3 Jun
Delta Logo
12:40 p.m. - 9:48 p.m.
YUL
-
ONT
12h 08m
1 stop
Delta Logo
10:00 p.m. - 11:43 a.m.
ONT
-
YUL
10h 43m
1 stop
C$ 677Delta
Sat, 23 May - Sat, 6 Jun
Delta Logo
7:44 p.m. - 10:38 a.m.
YUL
-
ONT
17h 54m
2 stops
Delta Logo
10:00 p.m. - 11:39 a.m.
ONT
-
YUL
10h 39m
1 stop
C$ 682Delta
Wed, 22 Jul - Mon, 27 Jul
United Airlines Logo
6:00 a.m. - 9:55 p.m.
YUL
-
ONT
18h 55m
2 stops
United Airlines Logo
6:30 p.m. - 4:10 p.m.
ONT
-
YUL
18h 40m
2 stops
C$ 692United Airlines
Sat, 6 Jun - Sun, 7 Jun
Delta Logo
7:45 p.m. - 11:04 a.m.
YUL
-
ONT
18h 19m
2 stops
Delta Logo
12:00 p.m. - 11:56 p.m.
ONT
-
YUL
8h 56m
1 stop
C$ 694Delta
Tue, 8 Sep - Tue, 15 Sep
United Airlines Logo
9:45 a.m. - 9:55 p.m.
YUL
-
ONT
15h 10m
2 stops
United Airlines Logo
6:30 p.m. - 4:10 p.m.
ONT
-
YUL
18h 40m
2 stops
C$ 701United Airlines
Sat, 6 Jun - Sun, 7 Jun

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United Airlines flights from Montreal to Ontario

Our best United Airlines deals on Montreal to Ontario flight tickets
United Airlines
6 Jun
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
18h 55m
2 stops
ONT9:55 p.m.Ontario
7 Jun
ONT6:30 p.m.Ontario
18h 40m
2 stops
YUL4:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 664
United Airlines
6 Jun
YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl
16h 01m
1 stop
ONT10:46 p.m.Ontario
7 Jun
ONT6:30 p.m.Ontario
18h 40m
2 stops
YUL4:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 666
United Airlines
27 May
YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl
13h 32m
2 stops
ONT9:55 p.m.Ontario
3 Jun
ONT5:45 a.m.Ontario
15h 28m
2 stops
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 675

Delta flights from Montreal to Ontario

Our best Delta deals on Montreal to Ontario flight tickets
Delta
8 Sep
YUL7:45 p.m.Montreal Pierre Elliott Trudeau Intl
18h 19m
2 stops
ONT11:04 a.m.Ontario
15 Sep
ONT7:00 a.m.Ontario
22h 43m
2 stops
YUL8:43 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 667
Delta
15 May
YUL12:40 p.m.Montreal Pierre Elliott Trudeau Intl
12h 08m
1 stop
ONT9:48 p.m.Ontario
17 May
ONT12:07 p.m.Ontario
8h 50m
1 stop
YUL11:57 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 674
Delta
23 May
YUL12:40 p.m.Montreal Pierre Elliott Trudeau Intl
12h 08m
1 stop
ONT9:48 p.m.Ontario
2 Jun
ONT10:00 p.m.Ontario
10h 35m
1 stop
YUL11:35 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 677

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

6:00 a.m.-9:55 p.m.

2 stops18h 55m

Ontario

Sun 7/6

6:30 p.m.-4:10 p.m.

2 stops18h 40m

C$ 664

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

9:45 a.m.-10:46 p.m.

1 stop16h 01m

Ontario

Sun 7/6

6:30 p.m.-4:10 p.m.

2 stops18h 40m

C$ 666

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

7:45 p.m.-11:04 a.m.

2 stops18h 19m

Ontario

Tue 15/9

7:00 a.m.-8:43 a.m.

2 stops22h 43m

C$ 667
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 15/5

12:40 p.m.-9:48 p.m.

1 stop12h 08m

Ontario

Sun 17/5

12:07 p.m.-11:57 p.m.

1 stop8h 50m

C$ 674

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

4:55 p.m.-10:51 p.m.

1 stop8h 56m

Ontario

Wed 3/6

5:45 a.m.-12:13 a.m.

2 stops15h 28m

C$ 675

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

12:40 p.m.-9:48 p.m.

1 stop12h 08m

Ontario

Sat 6/6

10:00 p.m.-11:43 a.m.

1 stop10h 43m

C$ 677

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

7:44 p.m.-10:38 a.m.

2 stops17h 54m

Ontario

Mon 27/7

10:00 p.m.-11:39 a.m.

1 stop10h 39m

C$ 682

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

6:00 a.m.-9:55 p.m.

2 stops18h 55m

Ontario

Sun 7/6

6:30 p.m.-4:10 p.m.

2 stops18h 40m

C$ 692

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

7:45 p.m.-11:04 a.m.

2 stops18h 19m

Ontario

Tue 15/9

12:00 p.m.-11:56 p.m.

1 stop8h 56m

C$ 694

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

9:45 a.m.-9:55 p.m.

2 stops15h 10m

Ontario

Sun 7/6

6:30 p.m.-4:10 p.m.

2 stops18h 40m

C$ 701

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 Los Angeles from

How to get the cheapest flight ticket from Montreal to Ontario

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

Can stopping save me money on Montreal to Ontario flights?

You could potentially save up to 28% on your flight if you consider stops on a Montreal to Ontario flight.

When to book flights from Montreal to Ontario

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

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

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

Fastest flight time

8h 25m

Direct flights

None
The fastest flight from Montreal to Ontario takes 8h 25m
There are no direct flights from Montreal to Ontario. There are no popular flight routes from Montreal to Ontario.
Search flight deals

Frequently asked questions about flying from Montreal to Ontario

  • How far is Montreal to Ontario by plane?

    A flight from Montreal to Ontario will travel around 3917.7 km. In terms of flight time, this usually takes a little over 8h 25m.

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

    Prices for flights from Montreal to Ontario Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to Ontario . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montreal to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Montreal which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Montreal to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Ontario from Montreal. 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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