Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Los Angeles from $146

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 Los Angeles departing on 12/12. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:30 pm - 9:17 pmYYZ-ONT
11h 47m2 stops
Multiple Airlines Logo
5:57 pm - 6:47 amONT-YYZ
9h 50m1 stop
$268Multiple Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
Multiple Airlines Logo
9:35 am - 9:17 pmYYZ-ONT
14h 42m1 stop
Multiple Airlines Logo
6:00 am - 7:55 pmONT-YYZ
10h 55m1 stop
$270Multiple Airlines
Find Deal
Mon, Dec 15 - Wed, Dec 24
Delta Logo
9:52 am - 10:47 pmYYZ-ONT
15h 55m2 stops
Delta Logo
6:40 am - 10:57 pmONT-YYZ
13h 17m2 stops
$354Delta
Find Deal
Thu, Dec 4 - Wed, Dec 10
Alaska Airlines Logo
4:45 pm - 10:59 amYYZ-ONT
21h 14m1 stop
Alaska Airlines Logo
6:00 am - 3:35 pmONT-YYZ
30h 35m1 stop
$396Alaska Airlines
Find Deal
Sat, Jan 24 - Mon, Jan 26
Alaska Airlines Logo
4:45 pm - 6:17 pmYYZ-ONT
28h 32m1 stop
Alaska Airlines Logo
6:55 pm - 3:35 pmONT-YYZ
17h 40m1 stop
$397Alaska Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
Delta Logo
2:29 pm - 11:59 amYUL-ONT
24h 30m2 stops
Delta Logo
1:09 pm - 8:39 amONT-YUL
16h 30m2 stops
$481Delta
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
9:15 am - 5:35 pmYUL-ONT
11h 20m2 stops
United Airlines Logo
5:05 am - 9:42 pmONT-YUL
13h 37m2 stops
$639United Airlines
Find Deal
Wed, Dec 17 - Wed, Dec 24
United Airlines Logo
11:10 am - 9:59 pmYOW-ONT
13h 49m2 stops
United Airlines Logo
6:00 am - 9:18 pmONT-YOW
12h 18m2 stops
$655United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
2:25 pm - 8:40 amYUL-ONT
21h 15m2 stops
American Airlines Logo
10:40 pm - 1:45 pmONT-YUL
12h 05m1 stop
$663American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
2:25 pm - 9:28 pmYUL-ONT
10h 03m1 stop
American Airlines Logo
9:53 am - 3:05 pmONT-YUL
26h 12m2 stops
$664American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24

American Airlines flights from Region of Ontario to Ontario

Our best American Airlines deals on Region of Ontario to Ontario flight tickets
American Airlines
Feb 20
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
21h 15m
2 stops
ONT8:40 amOntario
Feb 24
ONT10:40 pmOntario
12h 05m
1 stop
YUL1:45 pmMontreal Pierre Elliott Trudeau Intl
$663
Find similar
American Airlines
Feb 20
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
10h 03m
1 stop
ONT9:28 pmOntario
Feb 24
ONT9:53 amOntario
26h 12m
2 stops
YUL3:05 pmMontreal Pierre Elliott Trudeau Intl
$664
Find similar
American Airlines
Feb 20
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
10h 03m
1 stop
ONT9:28 pmOntario
Feb 24
ONT9:53 amOntario
24h 52m
2 stops
YUL1:45 pmMontreal Pierre Elliott Trudeau Intl
$665
Find similar

Air Canada flights from Region of Ontario to Ontario

Our best Air Canada deals on Region of Ontario to Ontario flight tickets
Air Canada
Dec 26
YUL7:00 pmMontreal Pierre Elliott Trudeau Intl
25h 43m
2 stops
ONT5:43 pmOntario
Jan 4
ONT5:05 amOntario
13h 12m
2 stops
YUL9:17 pmMontreal Pierre Elliott Trudeau Intl
$897
Find similar
Air Canada
Dec 27
YUL10:30 pmMontreal Pierre Elliott Trudeau Intl
22h 13m
2 stops
ONT5:43 pmOntario
Jan 4
ONT5:05 amOntario
13h 12m
2 stops
YUL9:17 pmMontreal Pierre Elliott Trudeau Intl
$923
Find similar
Air Canada
Nov 20
YUL12:10 pmMontreal Pierre Elliott Trudeau Intl
11h 34m
2 stops
ONT8:44 pmOntario
Nov 27
ONT5:05 amOntario
11h 48m
2 stops
YUL7:53 pmMontreal Pierre Elliott Trudeau Intl
$2,342
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario 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 832,500 searches. Data last updated November 8, 2025.
Use the filters below to find and compare flights from Ontario to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Wed 1/21

12:30 pm-9:17 pm

2 stops11h 47m

Ontario

Sun 1/25

5:57 pm-6:47 am

1 stop9h 50m

$268

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Mon 12/15

9:35 am-9:17 pm

1 stop14h 42m

Ontario

Wed 12/24

6:00 am-7:55 pm

1 stop10h 55m

$270

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Thu 12/4

9:52 am-10:47 pm

2 stops15h 55m

Ontario

Wed 12/10

6:40 am-10:57 pm

2 stops13h 17m

$354

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Sat 1/24

4:45 pm-10:59 am

1 stop21h 14m

Ontario

Mon 1/26

6:00 am-3:35 pm

1 stop30h 35m

$396

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Tue 2/24

4:45 pm-6:17 pm

1 stop28h 32m

Ontario

Tue 3/3

6:55 pm-3:35 pm

1 stop17h 40m

$397

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

2:29 pm-11:59 am

2 stops24h 30m

Ontario

Tue 2/24

1:09 pm-8:39 am

2 stops16h 30m

$481

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 12/17

9:15 am-5:35 pm

2 stops11h 20m

Ontario

Wed 12/24

5:05 am-9:42 pm

2 stops13h 37m

$639

OttawaOntario

YOW - ONT

YOWONT

Ottawa

Sat 2/21

11:10 am-9:59 pm

2 stops13h 49m

Ontario

Wed 2/25

6:00 am-9:18 pm

2 stops12h 18m

$655

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

2:25 pm-8:40 am

2 stops21h 15m

Ontario

Tue 2/24

10:40 pm-1:45 pm

1 stop12h 05m

$663

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

2:25 pm-9:28 pm

1 stop10h 03m

Ontario

Tue 2/24

9:53 am-3:05 pm

2 stops26h 12m

$664

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Region of Ontario 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

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Region of Ontario to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $300. If you aren’t able to travel during the month of January, then book flights to Ontario from Region of Ontario during March instead. Flights to Ontario in March, while not as cheap as those in January, still average around $367.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $360. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Ontario for around $606.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Region of Ontario to Ontario when you can find flight prices for as low as $258. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $451 on average. Flights to Ontario from Region of Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $497 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Region of Ontario for as low as $316 on momondo.

Can stopping save me money on Region of Ontario to Ontario flights?

You could potentially save up to 31% on your flight if you consider stops on a Region of Ontario to Ontario flight.

Cheap Region of Ontario to Ontario flight deals and tips

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

Direct flights

None
There are no direct flights from Region of Ontario to Ontario. There are no popular flight routes from Region of Ontario to Ontario.
Search flight deals

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

    Prices for flights from Ontario to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from Ontario to Ontario Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario 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.

Best airlines flying from Region of Ontario to Ontario

Compare and see reviews for airlines that fly from Region of Ontario to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $299Free CancellationRating
7.4
9,009 reviews
Search United Airlines flights

Why use momondo?

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

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

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Ontario.

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

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

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 12/8
Mon 12/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States