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

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

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 Francisco to Toronto Pearson Intl Airport is 4h 54m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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

As of August 2026, 60 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 43% of daily flights taking off in the afternoon.

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

426 flights are operational weekly from California to Region of Ontario as of August 2026. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.

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 48% 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 August 2026.

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.

$175 Cheap Flights from California to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Ontario

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 pm - 11:50 amLAX Los Angeles-YTZ Toronto Island

10h 20m1 stop Montreal Pierre Elliott Trudeau Intl

12:30 pm - 7:54 pmYTZ Toronto Island-LAX Los Angeles

10h 24m1 stop Montreal Pierre Elliott Trudeau Intl

$305Air Canada

Tue, Oct 13 - Sat, Oct 17

1:00 pm - 1:05 amSFO San Francisco-YYZ Toronto Pearson Intl

9h 05m1 stop Calgary

6:00 am - 12:00 pmYYZ Toronto Pearson Intl-SFO San Francisco

9h 00m1 stop Calgary

$328WestJet

Wed, Sep 16 - Wed, Sep 23

1:00 pm - 12:10 amSFO San Francisco-YYZ Toronto Pearson Intl

8h 10m1 stop Calgary

6:00 am - 12:00 pmYYZ Toronto Pearson Intl-SFO San Francisco

9h 00m1 stop Calgary

$329WestJet

Thu, Sep 24 - Mon, Sep 28

6:00 am - 7:35 pmSFO San Francisco-YYZ Toronto Pearson Intl

10h 35m2 stops Calgary Ottawa

9:45 am - 12:15 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 30mnonstop

$334Multiple Airlines

Sat, Sep 19 - Wed, Sep 23

6:00 am - 7:35 pmSFO San Francisco-YYZ Toronto Pearson Intl

10h 35m2 stops Calgary Ottawa

9:45 am - 12:15 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 30mnonstop

$334Multiple Airlines

Sat, Sep 19 - Tue, Sep 29

10:40 am - 6:27 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 47mnonstop

7:25 am - 9:45 amYYZ Toronto Pearson Intl-LAX Los Angeles

5h 20mnonstop

$353Air Canada

Thu, Sep 17 - Mon, Sep 28

2:20 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 40mnonstop

11:05 am - 1:20 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$354Porter Airlines

Sat, Oct 3 - Sat, Oct 10

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:00 am - 1:15 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$357Porter Airlines

Thu, Sep 24 - Wed, Sep 30

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:00 am - 1:15 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$424Air Transat

Fri, Sep 18 - Fri, Sep 25

2:20 pm - 10:05 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:05 am - 1:20 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$428Air Transat

Fri, Sep 11 - Fri, Sep 18

Cheap last minute flights

Enter your travel dates to find the best prices.

6:25 am - 9:15 pmSAN San Diego-YYZ Toronto Pearson Intl

35h 50m2 stops Phoenix Sky Harbor Intl Calgary

8:00 am - 2:10 pmYYZ Toronto Pearson Intl-SAN San Diego

9h 10m1 stop Calgary

$410Multiple Airlines

Sun, Aug 23 - Thu, Aug 27

6:25 am - 10:45 pmSAN San Diego-YYZ Toronto Pearson Intl

37h 20m2 stops Phoenix Sky Harbor Intl Calgary

7:00 am - 2:10 pmYYZ Toronto Pearson Intl-SAN San Diego

10h 10m1 stop Calgary

$439Multiple Airlines

Sun, Aug 23 - Sat, Aug 29

2:20 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 40mnonstop

11:05 am - 1:17 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 12mnonstop

$573Porter Airlines

Sat, Aug 22 - Thu, Aug 27

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:05 am - 1:17 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 12mnonstop

$601Porter Airlines

Sun, Aug 23 - Thu, Aug 27

6:45 am - 5:41 pmSAN San Diego-YYZ Toronto Pearson Intl

7h 56m1 stop Charlotte Douglas

1:15 pm - 11:25 pmYYZ Toronto Pearson Intl-SAN San Diego

13h 10m1 stop Chicago O'Hare Intl

$672American Airlines

Mon, Aug 24 - Sat, Sep 12

6:15 am - 6:30 pmSAN San Diego-YYZ Toronto Pearson Intl

9h 15m1 stop Chicago O'Hare Intl

11:40 am - 11:25 pmYYZ Toronto Pearson Intl-SAN San Diego

14h 45m1 stop Chicago O'Hare Intl

$674American Airlines

Wed, Aug 26 - Sat, Sep 26

12:30 pm - 8:27 pmSAN San Diego-YYZ Toronto Pearson Intl

4h 57mnonstop

9:20 am - 11:35 amYYZ Toronto Pearson Intl-SAN San Diego

5h 15mnonstop

$681Air Canada

Sun, Aug 23 - Sat, Aug 29

12:30 pm - 8:27 pmSAN San Diego-YYZ Toronto Pearson Intl

4h 57mnonstop

9:20 am - 11:35 amYYZ Toronto Pearson Intl-SAN San Diego

5h 15mnonstop

$688Air Canada

Mon, Aug 24 - Thu, Aug 27

6:15 am - 9:59 pmSAN San Diego-YYZ Toronto Pearson Intl

12h 44m1 stop Atlanta Hartsfield-Jackson

6:10 am - 11:34 pmYYZ Toronto Pearson Intl-SAN San Diego

20h 24m1 stop New York John F Kennedy Intl

$729Delta

Mon, Aug 24 - Wed, Sep 9

6:15 am - 5:24 pmSAN San Diego-YYZ Toronto Pearson Intl

8h 09m1 stop Detroit Metropolitan Wayne County

6:10 am - 11:34 pmYYZ Toronto Pearson Intl-SAN San Diego

20h 24m1 stop New York John F Kennedy Intl

$729Delta

Mon, Aug 24 - Fri, Sep 11

Cheap direct flights

Enter your travel dates to find the best prices.

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

7:25 am - 9:45 amYYZ Toronto Pearson Intl-LAX Los Angeles

5h 20mnonstop

$338Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

2:20 pm - 10:05 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

7:25 am - 9:45 amYYZ Toronto Pearson Intl-LAX Los Angeles

5h 20mnonstop

$345Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

10:40 am - 6:27 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 47mnonstop

7:25 am - 9:45 amYYZ Toronto Pearson Intl-LAX Los Angeles

5h 20mnonstop

$353Air Canada

Thu, Sep 17 - Mon, Sep 28

2:20 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 40mnonstop

11:05 am - 1:20 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$354Porter Airlines

Sat, Oct 3 - Sat, Oct 10

10:40 am - 6:27 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 47mnonstop

7:25 am - 9:45 amYYZ Toronto Pearson Intl-LAX Los Angeles

5h 20mnonstop

$356Air Canada

Sat, Sep 12 - Fri, Sep 18

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:00 am - 1:15 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$357Porter Airlines

Thu, Sep 24 - Wed, Sep 30

2:15 pm - 10:00 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:00 am - 1:15 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$424Air Transat

Fri, Sep 18 - Fri, Sep 25

2:20 pm - 10:05 pmLAX Los Angeles-YYZ Toronto Pearson Intl

4h 45mnonstop

11:05 am - 1:20 pmYYZ Toronto Pearson Intl-LAX Los Angeles

5h 15mnonstop

$428Air Transat

Fri, Sep 11 - Fri, Sep 18

8:10 am - 4:14 pmSFO San Francisco-YYZ Toronto Pearson Intl

5h 04mnonstop

6:30 am - 9:08 amYYZ Toronto Pearson Intl-SFO San Francisco

5h 38mnonstop

$439United Airlines

Sun, Sep 27 - Fri, Oct 2

10:51 pm - 7:00 amSFO San Francisco-YYZ Toronto Pearson Intl

5h 09mnonstop

6:30 am - 9:08 amYYZ Toronto Pearson Intl-SFO San Francisco

5h 38mnonstop

$439United Airlines

Wed, Sep 30 - Sat, Oct 3

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Porter Airlines flights from California to Region of Ontario

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

Porter Airlines

Oct 3

LAX2:20 pmLos Angeles

4h 40m

YYZ10:00 pmToronto Pearson Intl

Oct 10

YYZ11:05 amToronto Pearson Intl

5h 15m

LAX1:20 pmLos Angeles

$354

Porter Airlines

Sep 17

SFO1:20 pmSan Francisco

5h 05m

YYZ9:25 pmToronto Pearson Intl

Sep 23

YYZ9:45 amToronto Pearson Intl

5h 30m

SFO12:15 pmSan Francisco

$366

Porter Airlines

Oct 22

LAX2:20 pmLos Angeles

4h 40m

YYZ10:00 pmToronto Pearson Intl

Oct 28

YYZ9:55 amToronto Pearson Intl

5h 39m

LAX12:34 pmLos Angeles

$378

Air Canada flights from California to Region of Ontario

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

Air Canada

Oct 13

LAX10:30 pmLos Angeles

10h 20m

1 stop

YTZ11:50 amToronto Island

Oct 17

YTZ12:30 pmToronto Island

10h 24m

1 stop

LAX7:54 pmLos Angeles

$305

Air Canada

Sep 17

LAX10:40 amLos Angeles

4h 47m

YYZ6:27 pmToronto Pearson Intl

Sep 28

YYZ7:25 amToronto Pearson Intl

5h 20m

LAX9:45 amLos Angeles

$353

Air Canada

Sep 11

LAX10:40 amLos Angeles

4h 47m

YYZ6:27 pmToronto Pearson Intl

Sep 17

YYZ7:25 amToronto Pearson Intl

5h 20m

LAX9:45 amLos Angeles

$359

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesToronto

LAX Los Angeles - YTZ Toronto Island

LAXYTZ

Los Angeles

Tue 10/13

10:30 pm-11:50 am

1 stop10h 20m

Toronto Island

Sat 10/17

12:30 pm-7:54 pm

1 stop10h 24m

$305

San FranciscoToronto

SFO San Francisco - YYZ Toronto Pearson Intl

SFOYYZ

San Francisco

Wed 9/16

1:00 pm-1:05 am

1 stop9h 05m

Toronto Pearson Intl

Wed 9/23

6:00 am-12:00 pm

1 stop9h 00m

$328

San FranciscoToronto

SFO San Francisco - YYZ Toronto Pearson Intl

SFOYYZ

San Francisco

Thu 9/24

1:00 pm-12:10 am

1 stop8h 10m

Toronto Pearson Intl

Mon 9/28

6:00 am-12:00 pm

1 stop9h 00m

$329

San FranciscoToronto

SFO San Francisco - YYZ Toronto Pearson Intl

SFOYYZ

San Francisco

Sat 9/19

6:00 am-7:35 pm

2 stops10h 35m

Toronto Pearson Intl

Wed 9/23

9:45 am-12:15 pm

Nonstop5h 30m

$334

San FranciscoToronto

SFO San Francisco - YYZ Toronto Pearson Intl

SFOYYZ

San Francisco

Sat 9/19

6:00 am-7:35 pm

2 stops10h 35m

Toronto Pearson Intl

Tue 9/29

9:45 am-12:15 pm

Nonstop5h 30m

$334

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Thu 9/17

10:40 am-6:27 pm

Nonstop4h 47m

Toronto Pearson Intl

Mon 9/28

7:25 am-9:45 am

Nonstop5h 20m

$353

Quickest round-trip

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Sat 10/3

2:20 pm-10:00 pm

Nonstop4h 40m

Toronto Pearson Intl

Sat 10/10

11:05 am-1:20 pm

Nonstop5h 15m

$354

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Thu 9/24

2:15 pm-10:00 pm

Nonstop4h 45m

Toronto Pearson Intl

Wed 9/30

11:00 am-1:15 pm

Nonstop5h 15m

$357

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Fri 9/18

2:15 pm-10:00 pm

Nonstop4h 45m

Toronto Pearson Intl

Fri 9/25

11:00 am-1:15 pm

Nonstop5h 15m

$424

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Fri 9/11

2:20 pm-10:05 pm

Nonstop4h 45m

Toronto Pearson Intl

Fri 9/18

11:05 am-1:20 pm

Nonstop5h 15m

$428

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 February is, on average, the cheapest month to fly to Region of Ontario from California, with most prices found around $394. If you aren’t able to travel during the month of February, then book flights to Region of Ontario from California during January instead. Flights to Region of Ontario in January, while not as cheap as those in February, still average around $397.

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

According to our data, Tuesday is the cheapest day to fly to Region of Ontario from California. The lowest ticket price found for a Tuesday departure recently was $523. 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 $701. 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 $450. 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 $659.

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 $451 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 $403 on momondo.

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

There are 4 cabin classes available to choose from on California to Region of 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 11% 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	$175
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 $175. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is $305.

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 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 August 2026.
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 42.67% of all bookings. The subsequent popular models are Airbus A320-100/200 at 15.32%, Airbus A321-100/200 at 7.56%, and Boeing 737 MAX 9 at 6.96%.

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 $130	Free Cancellation	Rating 7.2 3,434 reviews	Search WestJet flights
Porter Airlines	PriceFrom $135	Free Cancellation	Rating 8.0 457 reviews	Search Porter Airlines flights
Delta	PriceFrom $142	Free Cancellation	Rating 7.8 8,513 reviews	Search Delta flights
Air Transat	PriceFrom $150	Free Cancellation	Rating 7.8 573 reviews	Search Air Transat flights
United Airlines	PriceFrom $151	Free Cancellation	Rating 7.4 10,106 reviews	Search United Airlines flights
Air Canada	PriceFrom $167	Free Cancellation	Rating 7.1 11,514 reviews	Search Air Canada flights
Qatar Airways	PriceFrom $293	Free Cancellation	Rating 7.4 3,737 reviews	Search Qatar Airways flights
American Airlines	PriceFrom $321	Free Cancellation	Rating 7.1 11,981 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

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Popular cities in Ontario

Flights to Torontofrom $181

Flights to Vancouverfrom $148

Flights to Montrealfrom $234

Flights to Calgaryfrom $182

Flights to Ottawafrom $256

Flights to Halifaxfrom $283

Flights to Winnipegfrom $237

Flights to Québec Cityfrom $336

Flights to Kelownafrom $243

Flights to St. John'sfrom $399

Flights to Saskatoonfrom $308

Flights to Reginafrom $331

Cheap flights from California to Ontario from $175

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 9/5. 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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Porter Airlines flights from California to Region of Ontario

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

Air Canada flights from California to Region of Ontario

Our best Air Canada 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?

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

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

What is the cheapest airline that flies 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?

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

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

California flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

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