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

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

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 35m on average. If you fly from Sacramento (another popular airport in California) to Toronto Pearson Intl Airport, then the average flight time is 4h 49m.

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 68 per day as of September 2025. The most frequent departure time is 1:00p.m., with 46% of daily flights leaving in the afternoon.

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 43% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 5 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 week?

The number of flights available between California and Region of Ontario is 479 per week as of September 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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 5 as of September 2025.

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$ 113 Cheap Flights from California to Ontario in 2025/26

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Find the cheapest flights from California to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:00 a.m. - 12:31 a.m.LAX-YYZ

14h 31m2 stops

8:00 a.m. - 6:09 p.m.YYZ-LAX

13h 09m2 stops

C$ 228WestJet

Find Deal

Thu, 9 Oct - Sun, 19 Oct

11:10 p.m. - 7:00 a.m.LAX-YYZ

4h 50mdirect

9:00 a.m. - 8:21 p.m.YYZ-LAX

14h 21m2 stops

C$ 229WestJet

Find Deal

Fri, 10 Oct - Sun, 12 Oct

2:00 p.m. - 9:50 p.m.LAX-YYZ

4h 50mdirect

12:00 p.m. - 6:09 p.m.YYZ-LAX

9h 09m1 stop

C$ 231Multiple Airlines

Find Deal

Wed, 8 Oct - Sat, 11 Oct

2:00 p.m. - 9:50 p.m.LAX-YYZ

4h 50mdirect

12:00 p.m. - 6:09 p.m.YYZ-LAX

9h 09m1 stop

C$ 232Multiple Airlines

Find Deal

Thu, 9 Oct - Wed, 15 Oct

10:30 p.m. - 11:45 a.m.LAX-YTZ

10h 15m1 stop

8:25 p.m. - 11:05 a.m.YTZ-LAX

17h 40m1 stop

C$ 290Air Canada

Find Deal

Thu, 16 Oct - Sun, 19 Oct

10:30 p.m. - 10:39 a.m.LAX-YYZ

9h 09m1 stop

6:35 p.m. - 8:53 p.m.YYZ-LAX

5h 18mdirect

C$ 294Air Canada

Find Deal

Wed, 1 Oct - Sat, 4 Oct

8:05 a.m. - 4:20 p.m.LAX-YUL

5h 15mdirect

4:45 p.m. - 7:40 p.m.YUL-LAX

5h 55mdirect

C$ 416United Airlines

Find Deal

Sat, 11 Oct - Tue, 14 Oct

6:00 a.m. - 5:26 p.m.LAX-YUL

8h 26m1 stop

6:45 p.m. - 9:35 p.m.YUL-LAX

5h 50mdirect

C$ 430United Airlines

Find Deal

Sat, 11 Oct - Tue, 14 Oct

1:40 p.m. - 12:35 a.m.SFO-YUL

7h 55m1 stop

6:45 a.m. - 12:40 p.m.YUL-SFO

8h 55m1 stop

C$ 514Porter Airlines

Find Deal

Sun, 2 Nov - Fri, 7 Nov

1:25 p.m. - 12:37 a.m.SFO-YUL

8h 12m1 stop

6:45 a.m. - 12:23 p.m.YUL-SFO

8h 38m1 stop

C$ 515Porter Airlines

Find Deal

Mon, 29 Sep - Sat, 4 Oct

WestJet flights from California to Region of Ontario

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

WestJet

9 Oct

LAX7:00 a.m.Los Angeles

14h 31m

2 stops

YYZ12:31 a.m.Toronto Pearson Intl

19 Oct

YYZ8:00 a.m.Toronto Pearson Intl

13h 09m

2 stops

LAX6:09 p.m.Los Angeles

C$ 228

Find similar

WestJet

10 Oct

LAX11:10 p.m.Los Angeles

4h 50m

YYZ7:00 a.m.Toronto Pearson Intl

12 Oct

YYZ9:00 a.m.Toronto Pearson Intl

14h 21m

2 stops

LAX8:21 p.m.Los Angeles

C$ 229

Find similar

WestJet

29 Sep

LAX7:00 a.m.Los Angeles

11h 01m

2 stops

YYZ9:01 p.m.Toronto Pearson Intl

7 Oct

YYZ12:00 p.m.Toronto Pearson Intl

9h 09m

1 stop

LAX6:09 p.m.Los Angeles

C$ 231

Find similar

Alaska Airlines flights from California to Region of Ontario

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

Alaska Airlines

21 Oct

SMF11:00 a.m.Sacramento Intl

25h 00m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

28 Oct

YYZ4:45 p.m.Toronto Pearson Intl

8h 09m

1 stop

SMF9:54 p.m.Sacramento Intl

C$ 528

Find similar

Alaska Airlines

20 Oct

SMF6:20 a.m.Sacramento Intl

29h 40m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

28 Oct

YYZ4:45 p.m.Toronto Pearson Intl

8h 09m

1 stop

SMF9:54 p.m.Sacramento Intl

C$ 542

Find similar

Alaska Airlines

15 Nov

SJC5:20 p.m.San Jose

19h 15m

1 stop

YYZ3:35 p.m.Toronto Pearson Intl

22 Nov

YYZ4:45 p.m.Toronto Pearson Intl

10h 13m

1 stop

SJC11:58 p.m.San Jose

C$ 543

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 9/10

7:00 a.m.-12:31 a.m.

2 stops14h 31m

Toronto Pearson Intl

Sun 19/10

8:00 a.m.-6:09 p.m.

2 stops13h 09m

C$ 228

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 10/10

11:10 p.m.-7:00 a.m.

Nonstop4h 50m

Toronto Pearson Intl

Sun 12/10

9:00 a.m.-8:21 p.m.

2 stops14h 21m

C$ 229

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 8/10

2:00 p.m.-9:50 p.m.

Nonstop4h 50m

Toronto Pearson Intl

Sat 11/10

12:00 p.m.-6:09 p.m.

1 stop9h 09m

C$ 231

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 9/10

2:00 p.m.-9:50 p.m.

Nonstop4h 50m

Toronto Pearson Intl

Wed 15/10

12:00 p.m.-6:09 p.m.

1 stop9h 09m

C$ 232

Los AngelesToronto

LAX - YTZ

LAXYTZ

Los Angeles

Thu 16/10

10:30 p.m.-11:45 a.m.

1 stop10h 15m

Toronto Island

Sun 19/10

8:25 p.m.-11:05 a.m.

1 stop17h 40m

C$ 290

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 1/10

10:30 p.m.-10:39 a.m.

1 stop9h 09m

Toronto Pearson Intl

Sat 4/10

6:35 p.m.-8:53 p.m.

Nonstop5h 18m

C$ 294

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Sat 11/10

8:05 a.m.-4:20 p.m.

Nonstop5h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 14/10

4:45 p.m.-7:40 p.m.

Nonstop5h 55m

C$ 416

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Sat 11/10

6:00 a.m.-5:26 p.m.

1 stop8h 26m

Montreal Pierre Elliott Trudeau Intl

Tue 14/10

6:45 p.m.-9:35 p.m.

Nonstop5h 50m

C$ 430

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sun 2/11

1:40 p.m.-12:35 a.m.

1 stop7h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

6:45 a.m.-12:40 p.m.

1 stop8h 55m

C$ 514

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 29/9

1:25 p.m.-12:37 a.m.

1 stop8h 12m

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

6:45 a.m.-12:23 p.m.

1 stop8h 38m

C$ 515

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, May 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$ 367. If you are unable to visit Region of Ontario during the month of May, then departing from California during the month October is also very affordable. Most momondo users find prices during this month for around C$ 383.

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 Friday. Travellers who choose to depart for Region of Ontario on a Friday will often find tickets for as low as C$ 360. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 512.

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$ 277. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 463 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 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 C$ 435 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$ 303 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?

No. A direct flight is the cheapest option for a flight between 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	C$ 188
Fastest flight time	4h 35m
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 C$ 188. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is C$ 205.

The fastest flight from California to Region of Ontario takes 4h 35m

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 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 5 as of September 2025.
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 (31.66% of total bookings). The next most popular plane models are Airbus A321-100/200 (16.97%), Boeing 737 MAX 8 (14.78%), and Airbus A220-300 (9.21%).

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 C$ 146	Free Cancellation	Rating 7.9 363 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 196	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 204	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 217	Free Cancellation	Rating 7.2 3,093 reviews	Search WestJet flights
Air Transat	PriceFrom C$ 239	Free Cancellation	Rating 7.7 438 reviews	Search Air Transat 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

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

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Get notified when prices go down

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

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Thu 16/10

Thu 23/10

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Find better results for your trip to Ontario

Popular Cities in Ontario

Flights to Torontofrom C$ 101

Flights to Vancouverfrom C$ 55

Flights to Montrealfrom C$ 188

Flights to Calgaryfrom C$ 69

Flights to Ottawafrom C$ 160

Flights to Winnipegfrom C$ 109

Flights to Halifaxfrom C$ 120

Flights to Kelownafrom C$ 69

Flights to Saskatoonfrom C$ 122

Flights to Reginafrom C$ 102

Flights to St. John'sfrom C$ 149

Flights to Québec Cityfrom C$ 293

Cheap flights from California to Ontario from C$ 113

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 7/10. 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, great deals

Big names, great 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

WestJet flights from California to Region of Ontario

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

Alaska Airlines flights from California to Region of Ontario

Our best Alaska Airlines 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

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?

The cheapest day to depart from California to Region of Ontario is on a Friday. Travellers who choose to depart for Region of Ontario on a Friday will often find tickets for as low as C$ 360. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 512.

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?

No. A direct flight is the cheapest option for a flight between California to Region of Ontario.

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

Air Transat, WestJet, and Air Canada are the most popular carriers operating 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?

The number of flights available between California and Region of Ontario is 68 per day as of September 2025. The most frequent departure time is 1:00p.m., with 46% of daily flights leaving in the afternoon.

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 479 per week as of September 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving 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