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

The flight from California to Region of Ontario depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Los Angeles (a popular airport in California) to Toronto Pearson Intl Airport (the most popular airport in Region of Ontario), then the flight time is 4h 40m on average. If you fly from San Diego (another popular airport in California) to Toronto Pearson Intl Airport, then the average flight time is 4h 51m.

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

United Airlines, Air Canada, and Delta are the most popular carriers operating from California to Ontario

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

The number of flights available between California and Region of Ontario is 447 per week as of May 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.

Which airlines fly to Region of Ontario?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Region of Ontario from California according to our data. Porter Airlines is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 7 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between California and Region of Ontario is 63 per day as of May 2026. The most frequent departure time is 1:00p.m., with 47% of daily flights leaving at noon.

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

Prices for flights from California to Ontario refresh 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 6 as of May 2026.

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

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 California to Ontario.

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

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 154 Cheap Flights from California to Ontario in 2026

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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.

11:15 p.m. - 6:39 a.m.

LAS

YYZ

4h 24mdirect

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

YYZ

LAS

12h 00m

2 stops

C$ 344Multiple Airlines

Thu, 15 Oct - Sun, 18 Oct

11:15 p.m. - 6:39 a.m.

LAS

YYZ

4h 24mdirect

9:30 a.m. - 4:35 p.m.

YYZ

LAS

10h 05m

1 stop

C$ 349Multiple Airlines

Thu, 15 Oct - Sun, 18 Oct

1:45 p.m. - 5:10 a.m.

LAS

YYZ

12h 25m

2 stops

8:30 p.m. - 10:17 p.m.

YYZ

LAS

4h 47mdirect

C$ 357Multiple Airlines

Wed, 23 Sep - Mon, 28 Sep

1:20 p.m. - 5:10 a.m.

LAS

YYZ

12h 50m

2 stops

8:00 a.m. - 3:45 p.m.

YYZ

LAS

10h 45m

2 stops

C$ 388WestJet

Wed, 23 Sep - Mon, 28 Sep

1:45 p.m. - 5:10 a.m.

LAS

YYZ

12h 25m

2 stops

6:00 a.m. - 3:45 p.m.

YYZ

LAS

12h 45m

2 stops

C$ 395WestJet

Mon, 14 Sep - Wed, 16 Sep

10:30 p.m. - 10:07 a.m.

LAX

YTZ

8h 37m

1 stop

12:30 p.m. - 7:59 p.m.

YTZ

LAX

10h 29m

1 stop

C$ 474Air Canada

Sat, 30 May - Sat, 6 Jun

10:30 p.m. - 10:38 a.m.

LAX

YYZ

9h 08m

1 stop

6:35 p.m. - 9:00 p.m.

YYZ

LAX

5h 25mdirect

C$ 477Air Canada

Sat, 30 May - Sat, 6 Jun

10:40 p.m. - 10:40 a.m.

SAN

YUL

9h 00m

1 stop

2:20 p.m. - 8:29 p.m.

YUL

SAN

9h 09m

1 stop

C$ 539United Airlines

Sat, 19 Sep - Thu, 24 Sep

5:00 p.m. - 8:16 a.m.

SAN

YUL

12h 16m

2 stops

9:15 a.m. - 2:57 p.m.

YUL

SAN

8h 42m

1 stop

C$ 546United Airlines

Sat, 19 Sep - Thu, 24 Sep

1:20 p.m. - 12:37 a.m.

SFO

YUL

8h 17m

1 stop

6:45 a.m. - 12:20 p.m.

YUL

SFO

8h 35m

1 stop

C$ 593Porter Airlines

Fri, 11 Sep - Wed, 16 Sep

American Airlines flights from California to Region of Ontario

Our best American Airlines deals on California to Region of Ontario flight tickets

American Airlines

28 May

LAS12:59 a.m.Las Vegas Harry Reid Intl

10h 31m

1 stop

YYZ2:30 p.m.Toronto Pearson Intl

31 May

YYZ6:26 p.m.Toronto Pearson Intl

7h 29m

1 stop

LAS10:55 p.m.Las Vegas Harry Reid Intl

C$ 586

American Airlines

28 May

SFO6:01 a.m.San Francisco

8h 20m

1 stop

YYZ5:21 p.m.Toronto Pearson Intl

1 Jun

YYZ4:17 p.m.Toronto Pearson Intl

12h 01m

1 stop

SFO1:18 a.m.San Francisco

C$ 612

American Airlines

26 May

SFO6:01 a.m.San Francisco

12h 40m

1 stop

YYZ9:41 p.m.Toronto Pearson Intl

3 Jun

YYZ4:17 p.m.Toronto Pearson Intl

9h 46m

1 stop

SFO11:03 p.m.San Francisco

C$ 636

WestJet flights from California to Region of Ontario

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

WestJet

23 Sep

LAS1:20 p.m.Las Vegas Harry Reid Intl

12h 50m

2 stops

YYZ5:10 a.m.Toronto Pearson Intl

28 Sep

YYZ8:00 a.m.Toronto Pearson Intl

10h 45m

2 stops

LAS3:45 p.m.Las Vegas Harry Reid Intl

C$ 388

WestJet

14 Sep

LAS1:45 p.m.Las Vegas Harry Reid Intl

12h 25m

2 stops

YYZ5:10 a.m.Toronto Pearson Intl

16 Sep

YYZ6:00 a.m.Toronto Pearson Intl

12h 45m

2 stops

LAS3:45 p.m.Las Vegas Harry Reid Intl

C$ 395

WestJet

14 Sep

LAS1:45 p.m.Las Vegas Harry Reid Intl

12h 25m

2 stops

YYZ5:10 a.m.Toronto Pearson Intl

16 Sep

YYZ7:00 a.m.Toronto Pearson Intl

11h 45m

2 stops

LAS3:45 p.m.Las Vegas Harry Reid Intl

C$ 397

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 15/10

11:15 p.m.-6:39 a.m.

Nonstop4h 24m

Toronto Pearson Intl

Sun 18/10

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

2 stops12h 00m

C$ 344

Quickest round-trip

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 15/10

11:15 p.m.-6:39 a.m.

Nonstop4h 24m

Toronto Pearson Intl

Sun 18/10

9:30 a.m.-4:35 p.m.

1 stop10h 05m

C$ 349

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 23/9

1:45 p.m.-5:10 a.m.

2 stops12h 25m

Toronto Pearson Intl

Mon 28/9

8:30 p.m.-10:17 p.m.

Nonstop4h 47m

C$ 357

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 23/9

1:20 p.m.-5:10 a.m.

2 stops12h 50m

Toronto Pearson Intl

Mon 28/9

8:00 a.m.-3:45 p.m.

2 stops10h 45m

C$ 388

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 14/9

1:45 p.m.-5:10 a.m.

2 stops12h 25m

Toronto Pearson Intl

Wed 16/9

6:00 a.m.-3:45 p.m.

2 stops12h 45m

C$ 395

Los AngelesToronto

LAX - YTZ

LAXYTZ

Los Angeles

Sat 30/5

10:30 p.m.-10:07 a.m.

1 stop8h 37m

Toronto Island

Sat 6/6

12:30 p.m.-7:59 p.m.

1 stop10h 29m

C$ 474

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 30/5

10:30 p.m.-10:38 a.m.

1 stop9h 08m

Toronto Pearson Intl

Sat 6/6

6:35 p.m.-9:00 p.m.

Nonstop5h 25m

C$ 477

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 19/9

10:40 p.m.-10:40 a.m.

1 stop9h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

2:20 p.m.-8:29 p.m.

1 stop9h 09m

C$ 539

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 19/9

5:00 p.m.-8:16 a.m.

2 stops12h 16m

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

9:15 a.m.-2:57 p.m.

1 stop8h 42m

C$ 546

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Fri 11/9

1:20 p.m.-12:37 a.m.

1 stop8h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

6:45 a.m.-12:20 p.m.

1 stop8h 35m

C$ 592

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?

In general, September is the cheapest month to fly from California to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 494. If you are unable to visit Region of Ontario during the month of September, then departing from California during the month February is also very affordable. Most momondo users find prices during this month for around C$ 502.

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

The cheapest day to depart from California to Region of Ontario is on a Saturday. Travellers who choose to depart for Region of Ontario on a Saturday will often find tickets for as low as C$ 389. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 604.

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

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from California to Region of Ontario during this time can be as low as C$ 243. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 551 on average. Flights to Region of Ontario from California at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 from California to 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 C$ 538 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 C$ 428 on momondo.

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

You could potentially save up to 19% 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	C$ 295
Fastest flight time	4h 15m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from California in the past 72 hours is C$ 295. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is C$ 427.

The fastest flight from California to Region of Ontario takes 4h 15m

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

There are 125 airports in Region of Ontario. From California there are direct flights to Toronto Pearson Intl (YYZ).

Search flight deals

Frequently asked questions about flying from California to Ontario

When did momondo last update prices for flights from California to Ontario?
Prices for flights from California to Ontario refresh 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 6 as of May 2026.
How old do you have to be to fly from California to Ontario?
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 California to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from California to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from California to Region of Ontario is Embraer 195 E2 (38.26% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (15.82%), Airbus A220-300 (12.37%), and Airbus A321-100/200 (8.53%).

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
WestJet	PriceFrom C$ 159	Free Cancellation	Rating 7.2 3,336 reviews	Search WestJet flights
American Airlines	PriceFrom C$ 182	Free Cancellation	Rating 7.1 11,659 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 188	Free Cancellation	Rating 7.1 11,054 reviews	Search Air Canada flights
Porter Airlines	PriceFrom C$ 195	Free Cancellation	Rating 8.0 439 reviews	Search Porter Airlines flights
Delta	PriceFrom C$ 223	Free Cancellation	Rating 7.9 8,453 reviews	Search Delta flights
Air Transat	PriceFrom C$ 299	Free Cancellation	Rating 7.8 552 reviews	Search Air Transat flights
United Airlines	PriceFrom C$ 343	Free Cancellation	Rating 7.4 9,730 reviews	Search United Airlines flights

Why use momondo?

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

It is quick and easy to find California to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. momondo allows you to filter the results for California to Ontario flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between California and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from California and alert you when they change.

An easier way to manage your Region of Ontario trip

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Popular Cities in Ontario

Flights to Torontofrom C$ 169

Flights to Vancouverfrom C$ 106

Flights to Montrealfrom C$ 275

Flights to Calgaryfrom C$ 157

Flights to Winnipegfrom C$ 173

Flights to Ottawafrom C$ 183

Flights to Halifaxfrom C$ 195

Flights to Kelownafrom C$ 121

Flights to Saskatoonfrom C$ 187

Flights to Reginafrom C$ 198

Flights to St. John'sfrom C$ 271

Flights to Vancouverfrom C$ 107

Cheap flights from California to Ontario from C$ 154

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 10/9. 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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Big names, great deals

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Filter for what you want

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American Airlines flights from California to Region of Ontario

Our best American Airlines 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

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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

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?

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

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

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

Which airlines fly to Region of Ontario?

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

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

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

Frequently asked questions about flying from California to 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?

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

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According to popular flight searches on momondo this year

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