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Cheap flights from Ontario to Los Angeles from $122

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 10/22. 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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Find the cheapest flights from Ontario to Los Angeles

Cheap round-trip flights

Multiple Airlines Logo
9:45 am - 8:42 pmYYZ-ONT
13h 57m1 stop
Multiple Airlines Logo
6:05 am - 7:58 pmONT-YYZ
10h 53m1 stop
$248Multiple Airlines
Find Deal
Wed, Oct 22 - Thu, Oct 23
Multiple Airlines Logo
6:30 am - 9:55 pmYYZ-ONT
18h 25m2 stops
Multiple Airlines Logo
6:05 am - 7:58 pmONT-YYZ
10h 53m1 stop
$254Multiple Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 23
Multiple Airlines Logo
11:00 am - 8:42 pmYYZ-ONT
12h 42m2 stops
Multiple Airlines Logo
6:05 am - 7:58 pmONT-YYZ
10h 53m1 stop
$259Multiple Airlines
Find Deal
Wed, Oct 22 - Thu, Oct 23
Delta Logo
6:05 am - 10:55 pmYYZ-ONT
19h 50m2 stops
Delta Logo
11:46 am - 4:02 pmONT-YYZ
25h 16m2 stops
$402Delta
Find Deal
Mon, Nov 10 - Tue, Nov 18
Alaska Airlines Logo
4:45 pm - 9:58 amYYZ-ONT
20h 13m2 stops
Alaska Airlines Logo
6:00 pm - 3:35 pmONT-YYZ
18h 35m2 stops
$410Alaska Airlines
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Tue, Oct 28 - Tue, Mar 3
American Airlines Logo
7:50 am - 6:35 pmYUL-ONT
13h 45m2 stops
American Airlines Logo
4:47 pm - 12:15 pmONT-YUL
16h 28m2 stops
$462American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
American Airlines Logo
3:45 pm - 8:42 amYUL-ONT
19h 57m2 stops
American Airlines Logo
8:04 pm - 3:00 pmONT-YUL
15h 56m2 stops
$500American Airlines
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Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:25 pm - 12:13 pmYOW-ONT
21h 48m2 stops
United Airlines Logo
5:05 am - 9:58 amONT-YOW
25h 53m2 stops
$511United Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
United Airlines Logo
5:15 am - 9:19 pmYOW-ONT
19h 04m2 stops
United Airlines Logo
1:52 pm - 1:34 pmONT-YOW
20h 42m2 stops
$518United Airlines
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Sat, Feb 21 - Wed, Feb 25
Delta Logo
6:00 am - 10:52 pmYUL-ONT
19h 52m2 stops
Delta Logo
6:00 am - 11:12 pmONT-YUL
14h 12m2 stops
$535Delta
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Sat, Jan 10 - Sat, Jan 17

Alaska Airlines flights from Region of Ontario to Ontario

Our best Alaska Airlines deals on Region of Ontario to Ontario flight tickets
Alaska Airlines
Oct 28
YYZ4:45 pmToronto Pearson Intl
20h 13m
2 stops
ONT9:58 amOntario
Mar 3
ONT6:00 pmOntario
18h 35m
2 stops
YYZ3:35 pmToronto Pearson Intl
$410
Find similar
Alaska Airlines
Oct 2
YYZ4:45 pmToronto Pearson Intl
20h 59m
1 stop
ONT10:44 amOntario
Oct 24
ONT7:10 amOntario
28h 50m
2 stops
YYZ3:00 pmToronto Pearson Intl
$590
Find similar
Alaska Airlines
Oct 2
YYZ4:45 pmToronto Pearson Intl
20h 59m
1 stop
ONT10:44 amOntario
Oct 24
ONT7:43 pmOntario
16h 17m
1 stop
YYZ3:00 pmToronto Pearson Intl
$600
Find similar

United Airlines flights from Region of Ontario to Ontario

Our best United Airlines deals on Region of Ontario to Ontario flight tickets
United Airlines
Oct 15
YOW5:25 pmOttawa
21h 48m
2 stops
ONT12:13 pmOntario
Oct 22
ONT5:05 amOntario
25h 53m
2 stops
YOW9:58 amOttawa
$511
Find similar
United Airlines
Feb 21
YOW5:15 amOttawa
19h 04m
2 stops
ONT9:19 pmOntario
Feb 25
ONT1:52 pmOntario
20h 42m
2 stops
YOW1:34 pmOttawa
$518
Find similar
United Airlines
Feb 20
YUL5:50 pmMontreal Pierre Elliott Trudeau Intl
21h 28m
1 stop
ONT12:18 pmOntario
Feb 24
ONT1:52 pmOntario
17h 28m
2 stops
YUL10:20 amMontreal Pierre Elliott Trudeau Intl
$557
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 September 19, 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 10/22

9:45 am-8:42 pm

1 stop13h 57m

Ontario

Thu 10/23

6:05 am-7:58 pm

1 stop10h 53m

$248

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Thu 10/16

6:30 am-9:55 pm

2 stops18h 25m

Ontario

Thu 10/23

6:05 am-7:58 pm

1 stop10h 53m

$254

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Wed 10/22

11:00 am-8:42 pm

2 stops12h 42m

Ontario

Thu 10/23

6:05 am-7:58 pm

1 stop10h 53m

$259

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Mon 11/10

6:05 am-10:55 pm

2 stops19h 50m

Ontario

Tue 11/18

11:46 am-4:02 pm

2 stops25h 16m

$402

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Tue 10/28

4:45 pm-9:58 am

2 stops20h 13m

Ontario

Tue 3/3

6:00 pm-3:35 pm

2 stops18h 35m

$410

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 11/1

7:50 am-6:35 pm

2 stops13h 45m

Ontario

Sat 11/8

4:47 pm-12:15 pm

2 stops16h 28m

$462

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

3:45 pm-8:42 am

2 stops19h 57m

Ontario

Tue 2/24

8:04 pm-3:00 pm

2 stops15h 56m

$500

OttawaOntario

YOW - ONT

YOWONT

Ottawa

Wed 10/15

5:25 pm-12:13 pm

2 stops21h 48m

Ontario

Wed 10/22

5:05 am-9:58 am

2 stops25h 53m

$511

OttawaOntario

YOW - ONT

YOWONT

Ottawa

Sat 2/21

5:15 am-9:19 pm

2 stops19h 04m

Ontario

Wed 2/25

1:52 pm-1:34 pm

2 stops20h 42m

$518

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 1/10

6:00 am-10:52 pm

2 stops19h 52m

Ontario

Sat 1/17

6:00 am-11:12 pm

2 stops14h 12m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 November instead. Flights to Ontario in November, while not as cheap as those in January, still average around $335.

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 $459 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 $317 on momondo.

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

You could potentially save up to 40% 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.
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  • 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 $274Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $294Free CancellationRating
7.9
7,964 reviews
Search Delta 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.

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