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Cheap flights from Ontario to California from C$ 219

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to California departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to California

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
1:30 p.m. - 9:40 p.m.
YYZ
-
LAS
11h 10m
1 stop
WestJet Logo
8:30 a.m. - 9:15 p.m.
LAS
-
YYZ
9h 45m
1 stop
C$ 386WestJet
Sat, 3 Oct - Sat, 10 Oct
Air Canada Logo
8:45 a.m. - 4:08 p.m.
YYZ
-
LAS
10h 23m
1 stop
Air Canada Logo
11:50 p.m. - 7:10 a.m.
LAS
-
YYZ
4h 20mdirect
C$ 387Air Canada
Wed, 2 Dec - Sun, 13 Dec
WestJet Logo
12:40 p.m. - 9:40 p.m.
YYZ
-
LAS
12h 00m
2 stops
WestJet Logo
6:10 p.m. - 5:45 a.m.
LAS
-
YYZ
8h 35m
1 stop
C$ 389WestJet
Sun, 2 Aug - Thu, 13 Aug
Porter Airlines Logo
8:35 p.m. - 10:22 p.m.
YYZ
-
LAS
4h 47mdirect
Porter Airlines Logo
11:20 p.m. - 6:39 a.m.
LAS
-
YYZ
4h 19mdirect
C$ 390Porter Airlines
Sat, 18 Jul - Tue, 21 Jul
Porter Airlines Logo
11:30 a.m. - 1:37 p.m.
YYZ
-
LAS
5h 07mdirect
Porter Airlines Logo
11:35 p.m. - 6:50 a.m.
LAS
-
YYZ
4h 15mdirect
C$ 392Porter Airlines
Wed, 2 Dec - Mon, 7 Dec
United Airlines Logo
9:44 a.m. - 8:08 p.m.
YYZ
-
LAS
13h 24m
1 stop
United Airlines Logo
11:55 p.m. - 5:56 p.m.
LAS
-
YYZ
15h 01m
1 stop
C$ 396United Airlines
Sat, 5 Sep - Sat, 5 Sep
American Airlines Logo
6:15 p.m. - 8:17 a.m.
YYZ
-
SNA
17h 02m
1 stop
American Airlines Logo
11:34 a.m. - 11:26 p.m.
SNA
-
YYZ
8h 52m
1 stop
C$ 400American Airlines
Wed, 23 Sep - Sat, 26 Sep
American Airlines Logo
6:15 p.m. - 8:17 a.m.
YYZ
-
SNA
17h 02m
1 stop
American Airlines Logo
8:00 a.m. - 11:26 p.m.
SNA
-
YYZ
12h 26m
2 stops
C$ 413American Airlines
Wed, 23 Sep - Sat, 26 Sep
Air Transat Logo
9:50 a.m. - 12:45 p.m.
YYZ
-
SFO
5h 55mdirect
Air Transat Logo
1:45 p.m. - 9:39 p.m.
SFO
-
YYZ
4h 54mdirect
C$ 492Air Transat
Tue, 3 Nov - Tue, 10 Nov
United Airlines Logo
6:30 a.m. - 12:12 p.m.
YYZ
-
ONT
8h 42m
1 stop
United Airlines Logo
7:00 a.m. - 7:37 p.m.
ONT
-
YYZ
9h 37m
1 stop
C$ 592United Airlines
Fri, 28 Aug - Sun, 30 Aug

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Air Canada flights from Region of Ontario to California

Our best Air Canada deals on Region of Ontario to California flight tickets
Air Canada
2 Dec
YYZ8:45 a.m.Toronto Pearson Intl
10h 23m
1 stop
LAS4:08 p.m.Las Vegas Harry Reid Intl
13 Dec
LAS11:50 p.m.Las Vegas Harry Reid Intl
4h 20m
YYZ7:10 a.m.Toronto Pearson Intl
C$ 387
Air Canada
11 Aug
YYZ8:35 p.m.Toronto Pearson Intl
4h 49m
LAS10:24 p.m.Las Vegas Harry Reid Intl
19 Aug
LAS12:10 p.m.Las Vegas Harry Reid Intl
4h 23m
YYZ7:33 p.m.Toronto Pearson Intl
C$ 393
Air Canada
19 Sep
YYZ8:35 p.m.Toronto Pearson Intl
4h 47m
LAS10:22 p.m.Las Vegas Harry Reid Intl
22 Sep
LAS6:50 a.m.Las Vegas Harry Reid Intl
9h 33m
1 stop
YYZ7:23 p.m.Toronto Pearson Intl
C$ 397

Air Transat flights from Region of Ontario to California

Our best Air Transat deals on Region of Ontario to California flight tickets
Air Transat
25 Sep
YYZ11:05 a.m.Toronto Pearson Intl
5h 15m
LAX1:20 p.m.Los Angeles
2 Oct
LAX2:20 p.m.Los Angeles
4h 40m
YYZ10:00 p.m.Toronto Pearson Intl
C$ 534
Air Transat
8 Oct
YYZ11:05 a.m.Toronto Pearson Intl
5h 15m
LAX1:20 p.m.Los Angeles
18 Oct
LAX2:20 p.m.Los Angeles
4h 40m
YYZ10:00 p.m.Toronto Pearson Intl
C$ 542
Air Transat
7 Jul
YUL4:15 p.m.Montreal Pierre Elliott Trudeau Intl
9h 07m
1 stop
LAS10:22 p.m.Las Vegas Harry Reid Intl
8 Jul
LAS9:45 a.m.Las Vegas Harry Reid Intl
7h 45m
1 stop
YUL8:30 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 684

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to California 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 28 June 2026.
Use the filters below to find and compare flights from Ontario to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 3/10

1:30 p.m.-9:40 p.m.

1 stop11h 10m

Las Vegas Harry Reid Intl

Sat 10/10

8:30 a.m.-9:15 p.m.

1 stop9h 45m

C$ 386

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 2/12

8:45 a.m.-4:08 p.m.

1 stop10h 23m

Las Vegas Harry Reid Intl

Sun 13/12

11:50 p.m.-7:10 a.m.

Nonstop4h 20m

C$ 387

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 2/8

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

2 stops12h 00m

Las Vegas Harry Reid Intl

Thu 13/8

6:10 p.m.-5:45 a.m.

1 stop8h 35m

C$ 389
Quickest round-trip

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 18/7

8:35 p.m.-10:22 p.m.

Nonstop4h 47m

Las Vegas Harry Reid Intl

Tue 21/7

11:20 p.m.-6:39 a.m.

Nonstop4h 19m

C$ 390

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 2/12

11:30 a.m.-1:37 p.m.

Nonstop5h 07m

Las Vegas Harry Reid Intl

Mon 7/12

11:35 p.m.-6:50 a.m.

Nonstop4h 15m

C$ 392

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 5/9

9:44 a.m.-8:08 p.m.

1 stop13h 24m

Las Vegas Harry Reid Intl

Sat 5/9

11:55 p.m.-5:56 p.m.

1 stop15h 01m

C$ 396

TorontoSanta Ana

YYZ - SNA

YYZSNA

Toronto Pearson Intl

Wed 23/9

6:15 p.m.-8:17 a.m.

1 stop17h 02m

Santa Ana J. Wayne/Orange Cnty

Sat 26/9

11:34 a.m.-11:26 p.m.

1 stop8h 52m

C$ 400

TorontoSanta Ana

YYZ - SNA

YYZSNA

Toronto Pearson Intl

Wed 23/9

6:15 p.m.-8:17 a.m.

1 stop17h 02m

Santa Ana J. Wayne/Orange Cnty

Sat 26/9

8:00 a.m.-11:26 p.m.

2 stops12h 26m

C$ 413

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 3/11

9:50 a.m.-12:45 p.m.

Nonstop5h 55m

San Francisco

Tue 10/11

1:45 p.m.-9:39 p.m.

Nonstop4h 54m

C$ 492

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Fri 28/8

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

1 stop8h 42m

Ontario

Sun 30/8

7:00 a.m.-7:37 p.m.

1 stop9h 37m

C$ 592

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 California from

How to get the cheapest flight ticket from Region of Ontario to California

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 California?

The cheapest month to fly to California from Region of Ontario is in January. Flight prices, which tend to average around C$ 483, are often lower during this time because this is during the off-season. If you’re not able to fly to California in January, then October is your next best option. Flight prices from Region of Ontario to California during October average around C$ 491.

What is the cheapest day to depart on your flight to California?

According to our data, Thursday is the cheapest day to fly to California from Region of Ontario. The lowest ticket price found for a Thursday departure recently was C$ 557. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Region of Ontario to California on a Sunday will generally be more expensive and average around C$ 696. 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 California?

Our data shows that the cheapest Region of Ontario to California flights are usually those with departure times in the morning. Our users have found flights to California in the morning for as low as C$ 578. Flights to California are more costly in the afternoon, with an average ticket price of C$ 989. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to California flight route?

Fly from Toronto Pearson Intl to San Francisco for the best Ontario - California flight prices

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

You are more likely to see cheaper flights to California from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 505 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Region of Ontario for as low as C$ 422 on momondo.

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

There are 4 cabin classes available to choose from on Region of Ontario to California 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 Region of Ontario to California flights?

You could potentially save up to 50% on your flight if you consider stops on a Region of Ontario to California flight.

Cheap Region of Ontario to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to California

Best price found

C$ 326

Fastest flight time

4h 47m

Direct flights

Every day

Airports in California

418 airports
The best one-way flight to California from Region of Ontario in the past 72 hours is C$ 326. The best round-trip flight deal from Region of Ontario to California found on momondo in the last 72 hours is C$ 577.
The fastest flight from Region of Ontario to California takes 4h 47m
Direct flights go from Region of Ontario to California every day.
There are 418 airports in California. From Region of Ontario there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Ontario to California

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

    Prices for flights from Ontario to California are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario to California?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to California.

  • What documentation or ID do you need to fly to California?

    The travel and health documents you'll need for your trip to California 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 California. 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 Region of Ontario to California?

Best airlines flying from Region of Ontario to California

Compare and see reviews for airlines that fly from Region of Ontario to California with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 197Free CancellationRating
7.2
3,385 reviews
Search WestJet flights
American AirlinesPriceFrom C$ 199Free CancellationRating
7.1
11,778 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 206Free CancellationRating
7.1
11,269 reviews
Search Air Canada flights
DeltaPriceFrom C$ 236Free CancellationRating
7.8
8,455 reviews
Search Delta flights
Porter AirlinesPriceFrom C$ 264Free CancellationRating
8.0
441 reviews
Search Porter Airlines flights
Alaska AirlinesPriceFrom C$ 299Free CancellationRating
7.9
12,582 reviews
Search Alaska Airlines flights
Air TransatPriceFrom C$ 319Free CancellationRating
7.8
559 reviews
Search Air Transat flights
United AirlinesPriceFrom C$ 321Free CancellationRating
7.4
9,901 reviews
Search United Airlines flights
APG AirlinesPriceFrom C$ 626Free CancellationRating
0.0
0 reviews
Search APG Airlines flights

Why use momondo?

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

It is quick and easy to find Ontario to California 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 California that suits you.

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

Yes. momondo enables you to select and highlight flights to California from Ontario with this policy.

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

Once you have performed a search for Ontario to California flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to California from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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