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Cheap flights from California to Ontario from C$ 97

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 5/3. 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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Find the cheapest flights from California to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:00 a.m. - 11:38 p.m.
LAS
-
YYZ
12h 38m
2 stops
WestJet Logo
12:30 p.m. - 8:16 p.m.
YYZ
-
LAS
10h 46m
1 stop
C$ 203WestJet
Wed, 4 Mar - Sun, 8 Mar
WestJet Logo
8:00 a.m. - 11:38 p.m.
LAS
-
YYZ
12h 38m
2 stops
WestJet Logo
8:00 p.m. - 10:12 p.m.
YYZ
-
LAS
5h 12mdirect
C$ 207WestJet
Wed, 4 Mar - Sun, 8 Mar
WestJet Logo
8:00 a.m. - 7:36 p.m.
LAS
-
YYZ
8h 36m
1 stop
WestJet Logo
9:40 a.m. - 6:13 p.m.
YYZ
-
LAS
11h 33m
2 stops
C$ 208WestJet
Tue, 3 Mar - Tue, 10 Mar
Porter Airlines Logo
1:40 p.m. - 9:25 p.m.
LAX
-
YYZ
4h 45mdirect
Porter Airlines Logo
10:00 a.m. - 12:39 p.m.
YYZ
-
LAX
5h 39mdirect
C$ 294Porter Airlines
Sat, 14 Mar - Tue, 24 Mar
Porter Airlines Logo
1:40 p.m. - 9:25 p.m.
LAX
-
YYZ
4h 45mdirect
Porter Airlines Logo
10:00 a.m. - 12:39 p.m.
YYZ
-
LAX
5h 39mdirect
C$ 295Porter Airlines
Fri, 27 Feb - Wed, 4 Mar
Air Canada Logo
8:10 a.m. - 4:47 p.m.
SFO
-
YUL
5h 37mdirect
Air Canada Logo
6:00 p.m. - 9:21 p.m.
YUL
-
SFO
6h 21mdirect
C$ 429Air Canada
Thu, 9 Apr - Wed, 15 Apr
Air Canada Logo
8:10 a.m. - 4:47 p.m.
SFO
-
YUL
5h 37mdirect
Air Canada Logo
6:00 p.m. - 9:21 p.m.
YUL
-
SFO
6h 21mdirect
C$ 430Air Canada
Thu, 9 Apr - Wed, 15 Apr
United Airlines Logo
3:55 p.m. - 2:20 p.m.
SJC
-
YYZ
19h 25m
2 stops
United Airlines Logo
5:30 p.m. - 10:59 p.m.
YYZ
-
SJC
8h 29m
1 stop
C$ 463United Airlines
Mon, 2 Mar - Tue, 10 Mar
Delta Logo
9:10 p.m. - 11:07 a.m.
SJC
-
YYZ
10h 57m
2 stops
Delta Logo
10:05 a.m. - 8:24 p.m.
YYZ
-
SJC
13h 19m
2 stops
C$ 468Delta
Mon, 2 Mar - Mon, 9 Mar
Delta Logo
10:56 p.m. - 8:55 a.m.
SJC
-
YYZ
6h 59m
1 stop
Delta Logo
6:30 a.m. - 12:09 p.m.
YYZ
-
SJC
8h 39m
1 stop
C$ 470Delta
Tue, 16 Jun - Wed, 24 Jun

Porter Airlines flights from California to Region of Ontario

Our best Porter Airlines deals on California to Region of Ontario flight tickets
Porter Airlines
2 Mar
LAS11:05 p.m.Las Vegas Harry Reid Intl
4h 15m
YYZ6:20 a.m.Toronto Pearson Intl
9 Mar
YYZ7:55 p.m.Toronto Pearson Intl
5h 07m
LAS10:02 p.m.Las Vegas Harry Reid Intl
C$ 255
Porter Airlines
14 Mar
LAX1:40 p.m.Los Angeles
4h 45m
YYZ9:25 p.m.Toronto Pearson Intl
25 Mar
YYZ10:00 a.m.Toronto Pearson Intl
5h 39m
LAX12:39 p.m.Los Angeles
C$ 294
Porter Airlines
27 Feb
LAX1:40 p.m.Los Angeles
4h 45m
YYZ9:25 p.m.Toronto Pearson Intl
4 Mar
YYZ10:00 a.m.Toronto Pearson Intl
5h 39m
LAX12:39 p.m.Los Angeles
C$ 295

WestJet flights from California to Region of Ontario

Our best WestJet deals on California to Region of Ontario flight tickets
WestJet
4 Mar
LAS8:00 a.m.Las Vegas Harry Reid Intl
12h 38m
2 stops
YYZ11:38 p.m.Toronto Pearson Intl
8 Mar
YYZ12:30 p.m.Toronto Pearson Intl
10h 46m
1 stop
LAS8:16 p.m.Las Vegas Harry Reid Intl
C$ 203
WestJet
4 Mar
LAS8:00 a.m.Las Vegas Harry Reid Intl
12h 38m
2 stops
YYZ11:38 p.m.Toronto Pearson Intl
8 Mar
YYZ8:00 p.m.Toronto Pearson Intl
5h 12m
LAS10:12 p.m.Las Vegas Harry Reid Intl
C$ 207
WestJet
3 Mar
LAS8:00 a.m.Las Vegas Harry Reid Intl
8h 36m
1 stop
YYZ7:36 p.m.Toronto Pearson Intl
10 Mar
YYZ9:40 a.m.Toronto Pearson Intl
11h 33m
2 stops
LAS6:13 p.m.Las Vegas Harry Reid Intl
C$ 208

momondo Fare Finder

 
Customize your flight search to find flights from California to Region of Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 15 February 2026.
Use the filters below to find and compare flights from California to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 4/3

8:00 a.m.-11:38 p.m.

2 stops12h 38m

Toronto Pearson Intl

Sun 8/3

12:30 p.m.-8:16 p.m.

1 stop10h 46m

C$ 203

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 4/3

8:00 a.m.-11:38 p.m.

2 stops12h 38m

Toronto Pearson Intl

Sun 8/3

8:00 p.m.-10:12 p.m.

Nonstop5h 12m

C$ 207

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 3/3

8:00 a.m.-7:36 p.m.

1 stop8h 36m

Toronto Pearson Intl

Tue 10/3

9:40 a.m.-6:13 p.m.

2 stops11h 33m

C$ 208

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 14/3

1:40 p.m.-9:25 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Tue 24/3

10:00 a.m.-12:39 p.m.

Nonstop5h 39m

C$ 294

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 27/2

1:40 p.m.-9:25 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Wed 4/3

10:00 a.m.-12:39 p.m.

Nonstop5h 39m

C$ 295

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Thu 9/4

8:10 a.m.-4:47 p.m.

Nonstop5h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:00 p.m.-9:21 p.m.

Nonstop6h 21m

C$ 429

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Thu 9/4

8:10 a.m.-4:47 p.m.

Nonstop5h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:00 p.m.-9:21 p.m.

Nonstop6h 21m

C$ 430

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 2/3

3:55 p.m.-2:20 p.m.

2 stops19h 25m

Toronto Pearson Intl

Tue 10/3

5:30 p.m.-10:59 p.m.

1 stop8h 29m

C$ 463

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 2/3

9:10 p.m.-11:07 a.m.

2 stops10h 57m

Toronto Pearson Intl

Mon 9/3

10:05 a.m.-8:24 p.m.

2 stops13h 19m

C$ 468

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 16/6

10:56 p.m.-8:55 a.m.

1 stop6h 59m

Toronto Pearson Intl

Wed 24/6

6:30 a.m.-12:09 p.m.

1 stop8h 39m

C$ 470

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, June 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$ 373. If you are unable to visit Region of Ontario during the month of June, then departing from California during the month May is also very affordable. Most momondo users find prices during this month for around C$ 385.

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$ 364. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 494.

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$ 254. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 474 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$ 452 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$ 316 on momondo.

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

There are 3 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 42% 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$ 208

Fastest flight time

4h 15m

Direct flights

Every day

Airports in Region of Ontario

123 airports
The best one-way flight to Region of Ontario from California in the past 72 hours is C$ 208. The best round-trip flight deal from California to Region of Ontario found on momondo in the last 72 hours is C$ 147.
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 123 airports in Region of Ontario. From California there are direct flights to 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?

  • 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?

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 AirlinesPriceFrom C$ 144Free CancellationRating
7.9
415 reviews
Search Porter Airlines flights
United AirlinesPriceFrom C$ 160Free CancellationRating
7.4
9,296 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 165Free CancellationRating
7.1
10,718 reviews
Search Air Canada flights
Air TransatPriceFrom C$ 174Free CancellationRating
7.7
508 reviews
Search Air Transat flights
American AirlinesPriceFrom C$ 180Free CancellationRating
7.2
11,296 reviews
Search American Airlines flights
WestJetPriceFrom C$ 207Free CancellationRating
7.2
3,262 reviews
Search WestJet flights
DeltaPriceFrom C$ 221Free CancellationRating
7.9
8,205 reviews
Search Delta 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.
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Find better results for your trip to Ontario

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