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 40% of people opting to fly with this airline when traveling 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.

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

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

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

As of July 2025, 43 flights take off from California and land in Region of Ontario each day. The most common flight departure time for this route is 12:00PM, with 45% of daily flights taking off in the afternoon.

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

307 flights are operational weekly from California to Region of Ontario as of July 2025. The most popular departure day for this route is Wed, with 19% 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 42m on average, while flying from Sacramento to Toronto Pearson Intl Airport is 4h 43m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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 7 as of July 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.

$73 Cheap Flights from California to Ontario in 2025

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Find the cheapest flights from California to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:10 pm - 6:59 amLAX-YYZ

4h 49mnonstop

10:40 am - 1:00 pmYYZ-LAX

5h 20mnonstop

$170

Find Deal

Sun, Sep 14 - Wed, Sep 17

9:55 pm - 5:46 amLAX-YYZ

4h 51mnonstop

6:35 pm - 8:53 pmYYZ-LAX

5h 18mnonstop

$177Air Canada

Find Deal

Sat, Sep 6 - Sat, Sep 13

10:30 pm - 10:39 amLAX-YYZ

9h 09m1 stop

6:35 pm - 8:53 pmYYZ-LAX

5h 18mnonstop

$178Air Canada

Find Deal

Sat, Sep 6 - Sat, Sep 13

11:50 am - 12:38 amLAX-YYZ

9h 48m1 stop

10:00 am - 4:58 pmYYZ-LAX

9h 58m1 stop

$185WestJet

Find Deal

Tue, Nov 18 - Wed, Dec 3

11:10 pm - 6:59 amLAX-YYZ

4h 49mnonstop

7:45 pm - 10:11 pmYYZ-LAX

5h 26mnonstop

$187WestJet

Find Deal

Wed, Oct 1 - Wed, Oct 8

2:00 pm - 9:50 pmLAX-YYZ

4h 50mnonstop

10:40 am - 1:00 pmYYZ-LAX

5h 20mnonstop

$205Porter Airlines

Find Deal

Fri, Sep 5 - Sat, Sep 13

2:00 pm - 12:37 amLAX-YUL

7h 37m1 stop

6:45 am - 1:00 pmYUL-LAX

9h 15m1 stop

$242Porter Airlines

Find Deal

Thu, Aug 28 - Wed, Sep 3

11:35 pm - 7:45 pmLAX-YUL

17h 10m1 stop

9:45 am - 3:29 pmYUL-LAX

8h 44m1 stop

$303United Airlines

Find Deal

Thu, Aug 21 - Sat, Aug 23

8:05 am - 11:16 pmSAN-YUL

12h 11m1 stop

6:20 am - 12:48 pmYUL-SAN

9h 28m1 stop

$389Delta

Find Deal

Sat, Aug 23 - Tue, Aug 26

9:45 pm - 3:00 pmSAN-YUL

14h 15m1 stop

6:15 am - 3:03 pmYUL-SAN

11h 48m2 stops

$395United Airlines

Find Deal

Fri, Aug 22 - Wed, Aug 27

WestJet flights from California to Region of Ontario

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

WestJet

Nov 18

LAX11:50 amLos Angeles

9h 48m

1 stop

YYZ12:38 amToronto Pearson Intl

Dec 3

YYZ10:00 amToronto Pearson Intl

9h 58m

1 stop

LAX4:58 pmLos Angeles

$185

Find similar

WestJet

Oct 1

LAX11:10 pmLos Angeles

4h 49m

YYZ6:59 amToronto Pearson Intl

Oct 8

YYZ7:45 pmToronto Pearson Intl

5h 26m

LAX10:11 pmLos Angeles

$187

Find similar

WestJet

Sep 26

LAX11:10 pmLos Angeles

4h 50m

YYZ7:00 amToronto Pearson Intl

Sep 28

YYZ7:45 pmToronto Pearson Intl

5h 26m

LAX10:11 pmLos Angeles

$188

Find similar

Porter Airlines flights from California to Region of Ontario

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

Porter Airlines

Sep 5

LAX2:00 pmLos Angeles

4h 50m

YYZ9:50 pmToronto Pearson Intl

Sep 13

YYZ10:40 amToronto Pearson Intl

5h 20m

LAX1:00 pmLos Angeles

$205

Find similar

Porter Airlines

Aug 28

LAX2:00 pmLos Angeles

7h 37m

1 stop

YUL12:37 amMontreal Pierre Elliott Trudeau Intl

Sep 3

YUL6:45 amMontreal Pierre Elliott Trudeau Intl

9h 15m

1 stop

LAX1:00 pmLos Angeles

$242

Find similar

Porter Airlines

Aug 23

LAX2:00 pmLos Angeles

7h 37m

1 stop

YUL12:37 amMontreal Pierre Elliott Trudeau Intl

Aug 28

YUL6:45 amMontreal Pierre Elliott Trudeau Intl

9h 15m

1 stop

LAX1:00 pmLos Angeles

$248

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sun 9/14

11:10 pm-6:59 am

Nonstop4h 49m

Toronto Pearson Intl

Wed 9/17

10:40 am-1:00 pm

Nonstop5h 20m

$170

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 9/6

9:55 pm-5:46 am

Nonstop4h 51m

Toronto Pearson Intl

Sat 9/13

6:35 pm-8:53 pm

Nonstop5h 18m

$177

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 9/6

10:30 pm-10:39 am

1 stop9h 09m

Toronto Pearson Intl

Sat 9/13

6:35 pm-8:53 pm

Nonstop5h 18m

$178

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 11/18

11:50 am-12:38 am

1 stop9h 48m

Toronto Pearson Intl

Wed 12/3

10:00 am-4:58 pm

1 stop9h 58m

$185

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 10/1

11:10 pm-6:59 am

Nonstop4h 49m

Toronto Pearson Intl

Wed 10/8

7:45 pm-10:11 pm

Nonstop5h 26m

$187

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 9/5

2:00 pm-9:50 pm

Nonstop4h 50m

Toronto Pearson Intl

Sat 9/13

10:40 am-1:00 pm

Nonstop5h 20m

$205

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Thu 8/28

2:00 pm-12:37 am

1 stop7h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 9/3

6:45 am-1:00 pm

1 stop9h 15m

$242

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Thu 8/21

11:35 pm-7:45 pm

1 stop17h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 8/23

9:45 am-3:29 pm

1 stop8h 44m

$303

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 8/23

8:05 am-11:16 pm

1 stop12h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 8/26

6:20 am-12:48 pm

1 stop9h 28m

$389

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Fri 8/22

9:45 pm-3:00 pm

1 stop14h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

6:15 am-3:03 pm

2 stops11h 48m

$395

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 September instead. Flights to Region of Ontario in September, while not as cheap as those in May, still average around $273.

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 $358. 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 $537. 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 $295. 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 $551.

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 $320 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 $215 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	$73
Fastest flight time	4h 42m
Direct flights	Every day
Airports in Region of Ontario	3 airports

The best one-way flight to Region of Ontario from California in the past 72 hours is $73. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is $170.

The fastest flight from California to Region of Ontario takes 4h 42m

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

There are 3 airports near Region of Ontario: Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ), Toronto Island (YTZ)

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 7 as of July 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 31.14% of all bookings. The subsequent popular models are Airbus A321-100/200 at 14.75%, Boeing 737 MAX 8 at 12.55%, and Airbus A320-100/200 at 9.67%.

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 $118	Free Cancellation	Rating 8.0 318 reviews	Search Porter Airlines flights
WestJet	PriceFrom $120	Free Cancellation	Rating 7.2 2,978 reviews	Search WestJet flights
Air Canada	PriceFrom $130	Free Cancellation	Rating 7.1 9,851 reviews	Search Air Canada flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Delta	PriceFrom $131	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Air Transat	PriceFrom $146	Free Cancellation	Rating 7.7 424 reviews	Search Air Transat flights
American Airlines	PriceFrom $180	Free Cancellation	Rating 7.2 10,000 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.

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Find better results for your trip to Ontario

Popular cities in Ontario

Flights to Torontofrom $98

Flights to Vancouverfrom $79

Flights to Montrealfrom $155

Flights to Calgaryfrom $145

Flights to Ottawafrom $185

Flights to Halifaxfrom $168

Flights to Winnipegfrom $194

Flights to Québec Cityfrom $226

Flights to Saskatoonfrom $120

Flights to Kelownafrom $202

Flights to St. John'sfrom $263

Flights to Reginafrom $219

Cheap flights from California to Ontario from $73

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 9/22. 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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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from California to Ontario

Cheap round-trip flights

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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

Porter Airlines flights from California to Region of Ontario

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

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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?

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 Canada, WestJet, and Porter Airlines 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 July 2025, 43 flights take off from California and land in Region of Ontario each day. The most common flight departure time for this route is 12:00PM, with 45% of daily flights taking off in the afternoon.

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

307 flights are operational weekly from California to Region of Ontario as of July 2025. The most popular departure day for this route is Wed, with 19% 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