How many flights depart from California to Region of Ontario on average per day?

As of October 2025, 27 flights take off from California and land in Region of Ontario each day. The most common flight departure time for this route is 8:00AM, with 56% of daily flights taking off in the afternoon.

What is the cheapest airline that flies from California to Ontario?

WestJet, Porter Airlines, and Air Canada are the most popular carriers operating from California to Ontario

How many flights depart from California to Region of Ontario on average per week?

195 flights are operational weekly from California to Region of Ontario as of October 2025. The most popular departure day for this route is Thu, with 34% of flights per week taking off on this day.

How long is the flight from California to Region of Ontario?

Average flight duration from California to Region of Ontario depends on which airport you fly into and out of. Flying from Los Angeles to Toronto Pearson Intl Airport is 4h 40m on average, while flying from San Diego to Toronto Pearson Intl Airport is 4h 50m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

What airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from California according to our data. Air Canada is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 8 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from California to Ontario are updated daily.

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

The number of operators available for flights from California to Ontario is 8 as of October 2025.

How old do you have to be to fly from California to Ontario?

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 California to Ontario.

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

The required travel and health documents for your Ontario 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$80 Cheap Flights from California to Ontario in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from California to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:25 pm - 6:47 amLAS-YYZ

4h 22mnonstop

8:00 pm - 10:09 pmYYZ-LAS

5h 09mnonstop

$177WestJet

Find Deal

Fri, Jan 9 - Sun, Jan 11

1:10 pm - 5:58 amLAS-YYZ

13h 48m2 stops

8:00 pm - 10:09 pmYYZ-LAS

5h 09mnonstop

$191WestJet

Find Deal

Wed, Jan 14 - Thu, Jan 15

12:40 pm - 7:55 pmLAS-YYZ

4h 15mnonstop

9:35 am - 11:42 amYYZ-LAS

5h 07mnonstop

$199Porter Airlines

Find Deal

Tue, Jan 20 - Sat, Jan 24

11:05 pm - 6:20 amLAS-YYZ

4h 15mnonstop

9:35 am - 11:42 amYYZ-LAS

5h 07mnonstop

$216Porter Airlines

Find Deal

Fri, Nov 28 - Thu, Dec 4

11:30 am - 7:15 pmLAX-YYZ

4h 45mnonstop

6:55 pm - 9:28 pmYYZ-LAX

5h 33mnonstop

$253Air Canada

Find Deal

Fri, Nov 28 - Thu, Dec 4

11:30 am - 7:15 pmLAX-YYZ

4h 45mnonstop

8:00 am - 10:32 amYYZ-LAX

5h 32mnonstop

$262Air Canada

Find Deal

Thu, Nov 27 - Wed, Dec 3

6:15 am - 9:29 pmSAN-YYZ

12h 14m1 stop

11:30 am - 10:26 pmYYZ-SAN

13h 56m1 stop

$342American Airlines

Find Deal

Sat, Dec 13 - Sat, Jan 10

6:20 am - 9:23 pmSAN-YYZ

12h 03m1 stop

11:30 am - 10:26 pmYYZ-SAN

13h 56m1 stop

$346American Airlines

Find Deal

Fri, Jan 16 - Tue, Jan 20

12:59 pm - 10:41 pmSNA-YYZ

6h 42m1 stop

12:21 pm - 8:03 pmYYZ-SNA

10h 42m1 stop

$409Delta

Find Deal

Fri, Jan 9 - Tue, Jan 13

5:49 pm - 11:25 amONT-YYZ

14h 36m2 stops

10:05 am - 10:47 pmYYZ-ONT

15h 42m2 stops

$519Delta

Find Deal

Sat, Dec 6 - Sat, Dec 13

Air Canada flights from California to Region of Ontario

Our best Air Canada deals on California to Region of Ontario flight tickets

Air Canada

Nov 13

LAS11:30 pmLas Vegas Harry Reid Intl

4h 12m

YYZ6:42 amToronto Pearson Intl

Nov 17

YYZ8:25 pmToronto Pearson Intl

5h 06m

LAS10:31 pmLas Vegas Harry Reid Intl

$191

Find similar

Air Canada

Nov 13

LAS11:30 pmLas Vegas Harry Reid Intl

4h 12m

YYZ6:42 amToronto Pearson Intl

Nov 17

YYZ12:00 pmToronto Pearson Intl

11h 49m

1 stop

LAS8:49 pmLas Vegas Harry Reid Intl

$229

Find similar

Air Canada

Nov 28

LAX11:30 amLos Angeles

4h 45m

YYZ7:15 pmToronto Pearson Intl

Dec 4

YYZ6:55 pmToronto Pearson Intl

5h 33m

LAX9:28 pmLos Angeles

$253

Find similar

WestJet flights from California to Region of Ontario

Our best WestJet deals on California to Region of Ontario flight tickets

WestJet

Jan 9

LAS11:25 pmLas Vegas Harry Reid Intl

4h 22m

YYZ6:47 amToronto Pearson Intl

Jan 11

YYZ8:00 pmToronto Pearson Intl

5h 09m

LAS10:09 pmLas Vegas Harry Reid Intl

$177

Find similar

WestJet

Jan 14

LAS1:10 pmLas Vegas Harry Reid Intl

13h 48m

2 stops

YYZ5:58 amToronto Pearson Intl

Jan 15

YYZ8:00 pmToronto Pearson Intl

5h 09m

LAS10:09 pmLas Vegas Harry Reid Intl

$191

Find similar

WestJet

Jan 9

LAS8:00 amLas Vegas Harry Reid Intl

8h 36m

1 stop

YYZ7:36 pmToronto Pearson Intl

Jan 11

YYZ8:00 pmToronto Pearson Intl

5h 09m

LAS10:09 pmLas Vegas Harry Reid Intl

$192

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 1/9

11:25 pm-6:47 am

Nonstop4h 22m

Toronto Pearson Intl

Sun 1/11

8:00 pm-10:09 pm

Nonstop5h 09m

$177

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 1/14

1:10 pm-5:58 am

2 stops13h 48m

Toronto Pearson Intl

Thu 1/15

8:00 pm-10:09 pm

Nonstop5h 09m

$191

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 1/20

12:40 pm-7:55 pm

Nonstop4h 15m

Toronto Pearson Intl

Sat 1/24

9:35 am-11:42 am

Nonstop5h 07m

$199

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 11/28

11:05 pm-6:20 am

Nonstop4h 15m

Toronto Pearson Intl

Thu 12/4

9:35 am-11:42 am

Nonstop5h 07m

$216

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 11/28

11:30 am-7:15 pm

Nonstop4h 45m

Toronto Pearson Intl

Thu 12/4

6:55 pm-9:28 pm

Nonstop5h 33m

$253

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 11/27

11:30 am-7:15 pm

Nonstop4h 45m

Toronto Pearson Intl

Wed 12/3

8:00 am-10:32 am

Nonstop5h 32m

$262

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 12/13

6:15 am-9:29 pm

1 stop12h 14m

Toronto Pearson Intl

Sat 1/10

11:30 am-10:26 pm

1 stop13h 56m

$342

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Fri 1/16

6:20 am-9:23 pm

1 stop12h 03m

Toronto Pearson Intl

Tue 1/20

11:30 am-10:26 pm

1 stop13h 56m

$346

Santa AnaToronto

SNA - YYZ

SNAYYZ

Santa Ana J. Wayne/Orange Cnty

Fri 1/9

12:59 pm-10:41 pm

1 stop6h 42m

Toronto Pearson Intl

Tue 1/13

12:21 pm-8:03 pm

1 stop10h 42m

$409

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Sat 12/6

5:49 pm-11:25 am

2 stops14h 36m

Toronto Pearson Intl

Sat 12/13

10:05 am-10:47 pm

2 stops15h 42m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to Region of 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

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

The month of May is, on average, the cheapest month to fly to Region of Ontario from California, with most prices found around $266. If you aren’t able to travel during the month of May, then book flights to Region of Ontario from California during June instead. Flights to Region of Ontario in June, while not as cheap as those in May, still average around $277.

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

According to our data, Thursday is the cheapest day to fly to Region of Ontario from California. The lowest ticket price found for a Thursday departure recently was $361. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from California to Region of Ontario on a Sunday will generally be more expensive and average around $591. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is at noon. momondo users have found flights departing from California to Region of Ontario at noon for as low as $303. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $575.

What is the cheapest California to Ontario flight route?

Fly from Los Angeles to Toronto Pearson Intl for the best California - Ontario flight prices

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

You are more likely to see cheaper flights to Region of Ontario from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $317 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from California for as low as $218 on momondo.

What cabin class options are available on California to Ontario flights?

There are 4 cabin classes available to choose from on California to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 22% on your flight if you consider stops on a California to Region of Ontario flight.

Cheap California to Region of Ontario flight deals and tips

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

Best Price Found	$159
Fastest flight time	4h 12m
Direct flights	Every day
Airports in Region of Ontario	1 airport

The best one-way flight to Region of Ontario from California in the past 72 hours is $159. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is $327.

The fastest flight from California to Region of Ontario takes 4h 12m

Direct flights go from California to Region of Ontario every day.

There is 1 airport near Region of Ontario: Toronto Pearson Intl (YYZ)

Search flight deals

When did momondo last update prices for flights from California to Ontario?
Prices for flights from California to Ontario are updated daily.
How many operators does momondo search for flights from California to Ontario?
The number of operators available for flights from California to Ontario is 8 as of October 2025.
How old do you have to be to fly from California to Ontario?
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 California to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from California to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from California to Region of Ontario is Embraer 195 E2, representing 33.20% of all bookings. The subsequent popular models are Airbus A321-100/200 at 17.60%, Boeing 737 MAX 8 at 17.12%, and Airbus A220-300 at 11.65%.

Best airlines flying from California to Region of Ontario

Compare and see reviews for airlines that fly from California to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom $20	Free Cancellation	Rating 8.0 384 reviews	Search Porter Airlines flights
Frontier	PriceFrom $36	Free Cancellation	Rating 5.8 3,123 reviews	Search Frontier flights
United Airlines	PriceFrom $105	Free Cancellation	Rating 7.4 8,999 reviews	Search United Airlines flights
WestJet	PriceFrom $119	Free Cancellation	Rating 7.2 3,152 reviews	Search WestJet flights
Delta	PriceFrom $131	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
Air Canada	PriceFrom $135	Free Cancellation	Rating 7.1 10,383 reviews	Search Air Canada flights
Air Transat	PriceFrom $146	Free Cancellation	Rating 7.8 469 reviews	Search Air Transat flights
American Airlines	PriceFrom $235	Free Cancellation	Rating 7.2 11,034 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Ontario. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Ontario from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Ontario from California. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of California to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Region of 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

Sat 11/29

Sat 12/6

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities in Ontario

Flights to Torontofrom $99

Flights to Vancouverfrom $82

Flights to Montrealfrom $158

Flights to Calgaryfrom $153

Flights to Ottawafrom $132

Flights to Halifaxfrom $200

Flights to Winnipegfrom $183

Flights to Québec Cityfrom $198

Flights to Saskatoonfrom $49

Flights to Kelownafrom $141

Flights to St. John'sfrom $253

Flights to Reginafrom $200

Cheap flights from California to Ontario from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ontario departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from California to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Air Canada flights from California to Region of Ontario

Our best Air Canada deals on California to Region of Ontario flight tickets

WestJet flights from California to Region of Ontario

Our best WestJet deals on California to Region of Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from California to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from California to Region of 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 Region of Ontario?

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

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

What is the cheapest California to Ontario flight route?

Fly from Los Angeles to Toronto Pearson Intl for the best California - Ontario flight prices

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

What cabin class options are available on California to Ontario flights?

There are 4 cabin classes available to choose from on California to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 22% on your flight if you consider stops on a California to Region of Ontario flight.

What is the cheapest airline that flies from California to Ontario?

WestJet, Porter Airlines, and Air Canada are the most popular carriers operating from California to Ontario

What airlines fly to Region of Ontario?

How many flights depart from California to Region of Ontario on average per day?

As of October 2025, 27 flights take off from California and land in Region of Ontario each day. The most common flight departure time for this route is 8:00AM, with 56% of daily flights taking off in the afternoon.

How many flights depart from California to Region of Ontario on average per week?

195 flights are operational weekly from California to Region of Ontario as of October 2025. The most popular departure day for this route is Thu, with 34% of flights per week taking off on this day.

How long is the flight from California to Region of Ontario?

Cheap California to Region of Ontario flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

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

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

How old do you have to be to fly from California to Ontario?

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

What is the most popular plane model from California to Region of Ontario?

Best airlines flying from California to Region of Ontario

Compare and see reviews for airlines that fly from California to Region of Ontario with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Region of 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular cities in Ontario

Popular flights according to clicks in the last 7 days on momondo