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Cheap flights from California to Ontario from C$ 85

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LAX — YYZ
8 May — 15 May1
1 adult
Wed 8/5
Wed 15/5

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 80% on flights from California to Region of Ontario compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 633. For sooner than that we have options available in the next 3 days from C$ 878.

What is the cheapest month to fly from California to Region of Ontario?

Flights from California to Region of Ontario lean towards being more expensive in July. Prices are generally better when you fly from California to Region of Ontario in October, with the cheapest ticket starting at C$ 192.

When is the cheapest time to fly from California to Region of Ontario (CA - ON)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Region of Ontario as you normally would.

Cheap Porter Airlines flights from California to Ontario

Explore cheap flight options specifically provided by Porter Airlines for the route between California and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
Peruse some of the lowest-priced Porter Airlines flights we've found from California to Ontario. It's recommended that users confirm their flight details before booking.
Fri 17/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Mon 20/510:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 325
Wed 9/102:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Mon 21/1010:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 330
Tue 1/102:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sat 5/1010:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 3/5C$ 334
Fri 20/92:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sat 28/910:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 336
Sun 8/92:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sun 22/910:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 374
Thu 16/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Wed 29/510:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 385
Tue 4/62:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Sat 15/610:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 392
Tue 14/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Sat 25/510:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 403
Wed 29/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Fri 7/610:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 419

Cheap Alaska Airlines flights from California to Ontario

Explore cheap flight options specifically provided by Alaska Airlines for the route between California and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
Have a look at some of the cheapest available Alaska Airlines flights departing from California and landing in Ontario. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 29/58:09 p.m.ONT - YYZ
2 stops12h 06mAlaska Airlines
Wed 5/63:40 p.m.YYZ - ONT
1 stop11h 18mAlaska Airlines
Deal found 1/5C$ 687
Fri 10/57:59 p.m.ONT - YYZ
2 stops12h 16mAlaska Airlines
Tue 21/53:40 p.m.YYZ - ONT
1 stop11h 18mAlaska Airlines
Deal found 1/5C$ 1,327

Cheap California to Ontario flights in May & June 2024

Find cheap flight options from California to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 483,025 searches. Prices were last updated on 3 May 2024.
Check out some of the best flight deals from California to Ontario in 2024. For more flight deals, be sure to check back very soon.
Tue 4/610:31 a.m.SJC - YYZ
1 stop17h 04mMultiple Airlines
Tue 11/68:20 p.m.YYZ - SJC
1 stop15h 04mMultiple Airlines
Deal found 1/5C$ 245
Wed 12/68:20 p.m.LAX - YYZ
2 stops31h 15mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 262
Tue 4/612:21 p.m.SJC - YYZ
2 stops15h 14mMultiple Airlines
Tue 11/68:20 p.m.YYZ - SJC
1 stop15h 04mMultiple Airlines
Deal found 1/5C$ 266
Tue 11/65:35 a.m.LAX - YYZ
1 stop22h 00mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 266
Thu 13/62:45 p.m.LAX - YYZ
1 stop12h 50mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 270
Tue 11/66:40 a.m.LAX - YYZ
1 stop20h 55mMultiple Airlines
Tue 18/68:00 p.m.YYZ - LAX
1 stop15h 40mMultiple Airlines
Deal found 2/5C$ 271
Tue 11/65:26 p.m.ONT - YYZ
1 stop10h 09mMultiple Airlines
Sat 15/68:20 p.m.YYZ - ONT
1 stop13h 43mMultiple Airlines
Deal found 2/5C$ 284
Tue 11/68:52 a.m.LAX - YYZ
1 stop18h 43mMultiple Airlines
Tue 18/67:15 p.m.YYZ - LAX
Nonstop5h 25mMultiple Airlines
Deal found 2/5C$ 284
Tue 11/65:35 a.m.LAX - YYZ
1 stop22h 00mMultiple Airlines
Fri 21/67:15 p.m.YYZ - LAX
Nonstop5h 25mMultiple Airlines
Deal found 2/5C$ 285

California to Ontario 2024 flight deals

Discover exclusive flight deals for travel between California and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
Check out some of the best flight deals from California to Ontario in 2024. For more flight deals, be sure to check back very soon.
Tue 4/610:31 a.m.SJC - YYZ
1 stop17h 04mMultiple Airlines
Tue 11/68:20 p.m.YYZ - SJC
1 stop15h 04mMultiple Airlines
Deal found 1/5C$ 245
Wed 12/68:20 p.m.LAX - YYZ
2 stops31h 15mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 262
Tue 4/612:21 p.m.SJC - YYZ
2 stops15h 14mMultiple Airlines
Tue 11/68:20 p.m.YYZ - SJC
1 stop15h 04mMultiple Airlines
Deal found 1/5C$ 266
Tue 11/65:35 a.m.LAX - YYZ
1 stop22h 00mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 266
Thu 13/62:45 p.m.LAX - YYZ
1 stop12h 50mMultiple Airlines
Tue 18/68:20 p.m.YYZ - LAX
1 stop26h 12mMultiple Airlines
Deal found 2/5C$ 270
Tue 11/66:40 a.m.LAX - YYZ
1 stop20h 55mMultiple Airlines
Tue 18/68:00 p.m.YYZ - LAX
1 stop15h 40mMultiple Airlines
Deal found 2/5C$ 271
Tue 11/65:26 p.m.ONT - YYZ
1 stop10h 09mMultiple Airlines
Sat 15/68:20 p.m.YYZ - ONT
1 stop13h 43mMultiple Airlines
Deal found 2/5C$ 284
Tue 11/68:52 a.m.LAX - YYZ
1 stop18h 43mMultiple Airlines
Tue 18/67:15 p.m.YYZ - LAX
Nonstop5h 25mMultiple Airlines
Deal found 2/5C$ 284
Tue 11/65:35 a.m.LAX - YYZ
1 stop22h 00mMultiple Airlines
Fri 21/67:15 p.m.YYZ - LAX
Nonstop5h 25mMultiple Airlines
Deal found 2/5C$ 285

Direct flights to Ontario from California

Discover non-stop flight options from California to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
To help reduce your travel time, choose from one of these non-stop flights from California to Ontario. If you're looking for other options for flights from California to Ontario, make sure to update the search form at the top of page.
Fri 17/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Mon 20/510:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 325
Thu 17/102:30 p.m.LAX - YYZ
Nonstop4h 43mWestJet
Mon 21/1011:15 a.m.YYZ - LAX
Nonstop5h 18mWestJet
Deal found 3/5C$ 328
Fri 13/92:30 p.m.LAX - YYZ
Nonstop4h 54mWestJet
Mon 16/911:15 a.m.YYZ - LAX
Nonstop5h 18mWestJet
Deal found 2/5C$ 329
Wed 9/102:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Mon 21/1010:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 330
Tue 10/92:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sat 14/910:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 332
Tue 1/102:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sat 5/1010:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 3/5C$ 334
Fri 20/92:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Sat 28/910:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 336
Tue 10/92:00 p.m.LAX - YYZ
Nonstop4h 49mPorter Airlines
Tue 17/910:45 a.m.YYZ - LAX
Nonstop5h 25mPorter Airlines
Deal found 2/5C$ 340
Fri 27/92:30 p.m.LAX - YYZ
Nonstop4h 43mWestJet
Thu 3/1011:15 a.m.YYZ - LAX
Nonstop5h 18mWestJet
Deal found 3/5C$ 341

California to Ontario flights leaving soon

Find last-minute flight options from California to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
Users seeking a last-minute flight from California to Ontario should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
Fri 17/52:00 p.m.LAX - YYZ
Nonstop4h 50mPorter Airlines
Mon 20/510:30 a.m.YYZ - LAX
Nonstop5h 26mPorter Airlines
Deal found 2/5C$ 325
Thu 9/51:45 p.m.LAX - YYZ
1 stop13h 50mMultiple Airlines
Tue 14/58:20 p.m.YYZ - LAX
1 stop7h 59mMultiple Airlines
Deal found 1/5C$ 336
Mon 13/55:12 p.m.LAX - YYZ
1 stop23h 23mMultiple Airlines
Sat 25/510:30 a.m.YYZ - LAX
Nonstop5h 26mMultiple Airlines
Deal found 2/5C$ 343
Wed 15/511:30 p.m.LAX - YYZ
2 stops17h 05mMultiple Airlines
Wed 29/56:30 a.m.YYZ - LAX
2 stops20h 11mMultiple Airlines
Deal found 2/5C$ 347
Wed 15/511:30 p.m.LAX - YYZ
2 stops17h 05mMultiple Airlines
Wed 29/51:30 p.m.YYZ - LAX
1 stop11h 15mMultiple Airlines
Deal found 2/5C$ 349
Mon 13/55:12 p.m.LAX - YYZ
1 stop23h 23mMultiple Airlines
Sat 25/58:20 p.m.YYZ - LAX
1 stop17h 53mMultiple Airlines
Deal found 2/5C$ 354
Wed 15/55:12 p.m.LAX - YYZ
1 stop23h 23mMultiple Airlines
Sat 25/510:30 a.m.YYZ - LAX
Nonstop5h 26mMultiple Airlines
Deal found 2/5C$ 360
Sat 11/53:56 p.m.LAX - YYZ
1 stop11h 39mMultiple Airlines
Sun 12/511:15 a.m.YYZ - LAX
Nonstop5h 21mMultiple Airlines
Deal found 3/5C$ 363
Wed 15/53:39 p.m.LAX - YYZ
2 stops24h 56mMultiple Airlines
Wed 22/511:15 a.m.YYZ - LAX
Nonstop5h 21mMultiple Airlines
Deal found 2/5C$ 365

One-way flights to Ontario from California

Search for one-way flight options from California to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
Some of the best available deals we've found on one-way flights from California to Ontario. Those needing a return flight from California to Ontario can use the search form above.
Sat 18/52:38 p.m.SAN - YYZ
1 stop12h 57mMultiple Airlines
Deal found 2/5C$ 85
Tue 11/610:38 a.m.SFO - YYZ
1 stop16h 57mMultiple Airlines
Deal found 2/5C$ 89
Thu 13/62:56 p.m.SAN - YYZ
1 stop12h 39mMultiple Airlines
Deal found 2/5C$ 95
Tue 4/65:41 p.m.ONT - YYZ
1 stop9h 54mMultiple Airlines
Deal found 1/5C$ 103
Tue 4/612:07 p.m.SFO - YYZ
1 stop15h 28mMultiple Airlines
Deal found 2/5C$ 103
Sat 18/56:15 a.m.SAN - YYZ
2 stops21h 20mMultiple Airlines
Deal found 2/5C$ 104
Fri 17/511:04 p.m.ONT - YYZ
1 stop28h 31mMultiple Airlines
Deal found 2/5C$ 106
Tue 18/612:22 p.m.SFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 2/5C$ 106
Tue 18/64:26 p.m.SAN - YYZ
1 stop11h 09mMultiple Airlines
Deal found 2/5C$ 108

Find flights from California to Ontario within your budget

Customize your flight search to find flights from California to 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, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 245 - C$ 511

Route

Depart

Return

Price

San JoseToronto Pearson Intl

SJC - YYZ

SJCYYZ

San Jose

Tue 4/6

1 stop17h 04m

Toronto Pearson Intl

Tue 11/6

1 stop15h 04m

C$ 245

Los AngelesToronto Pearson Intl

LAX - YYZ

LAXYYZ

Los Angeles

Wed 12/6

2 stops31h 15m

Toronto Pearson Intl

Tue 18/6

1 stop26h 12m

C$ 262

Los AngelesToronto Pearson Intl

LAX - YYZ

LAXYYZ

Los Angeles

Fri 17/5

Nonstop4h 50m

Toronto Pearson Intl

Mon 20/5

Nonstop5h 26m

C$ 325

Los AngelesToronto Pearson Intl

LAX - YYZ

LAXYYZ

Los Angeles

Fri 27/9

Nonstop4h 43m

Toronto Pearson Intl

Thu 3/10

Nonstop5h 18m

C$ 341

San FranciscoToronto Kitchener-Waterloo

SFO - YKF

SFOYKF

San Francisco

Sun 26/5

1 stop17h 50m

Toronto Kitchener-Waterloo

Thu 30/5

1 stop15h 15m

C$ 428

Los AngelesToronto Pearson Intl

LAX - YYZ

LAXYYZ

Los Angeles

Mon 13/5

1 stop8h 02m

Toronto Pearson Intl

Fri 17/5

1 stop7h 12m

C$ 434

Los AngelesToronto Pearson Intl

LAX - YYZ

LAXYYZ

Los Angeles

Sun 2/6

Nonstop4h 50m

Toronto Pearson Intl

Sun 9/6

Nonstop5h 26m

C$ 476

OntarioToronto Pearson Intl

ONT - YYZ

ONTYYZ

Ontario

Tue 28/5

1 stop14h 33m

Toronto Pearson Intl

Thu 30/5

1 stop9h 15m

C$ 495

OntarioToronto Pearson Intl

ONT - YYZ

ONTYYZ

Ontario

Sun 26/5

1 stop8h 35m

Toronto Pearson Intl

Sat 1/6

1 stop16h 02m

C$ 511

Flights are sorted by cheapest first

Deals found on 1/5

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 3 May 2024.
Read reviews from past customers who have flown Porter Airlines, Alaska Airlines and WestJet from California to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,128 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,848 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

WestJet
7.6
Good
2,965 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Avianca
7.5
Good
3,867 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Porter Airlines
7.4
Good
434 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from California to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from California to Region of Ontario for under C$ 300 on Cheapflights?

    Yes, there are multiple flights from California to Region of Ontario for under C$ 300. The cheapest flight booked recently is on Multiple Airlines for just C$ 245, but on average you can expect to pay C$ 282.

  • Are there direct flights from California to Region of Ontario for under C$ 400 on Cheapflights?

    Cheapflights has 20 direct flights from California to Region of Ontario under C$ 400. A good price for a direct flight from California to Region of Ontario is less than C$ 343.

  • Are there last-minute flights available from California to Region of Ontario for under C$ 400?

    There are currently 20+ open flights from California to Region of Ontario within the next 7 days for less than C$ 400.

  • What days are direct flights available from California to Region of Ontario?

    You can find direct flights on the following days: Monday, Friday.

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

    Travellers can expect 4 flights from California to Region of Ontario on average per day.
    Afternoon (Noon - 6pm) - 100% of flight departures

  • What does LAX to YYZ mean?

    Great question - LAX to YYZ just means Los Angeles Airport to Toronto Pearson Intl Airport. Now you’ll know what these unique codes when you look for flights! Ottawa Airport (YOW), Toronto Island Airport (YTZ), Hamilton Airport (YHM), London Airport (YXU), Toronto Kitchener-Waterloo Airport (YKF) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from California to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your California to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from California to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter California to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from California to Ontario that include hotel bookings?

    Yes. In addition to deals on California to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Ontario.

  • Can I find deals for business class flights from California to Ontario?

    Yes. Cheapflights offers flight deals from California to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from California to Ontario that allow pets onboard?

    Many airlines flying from California to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from California to Ontario?

    Yes, you can often find last-minute deals on California to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the California to Region of Ontario flight deals updated?

    The California to Region of Ontario flight deals you see on this page were last updated on 2/5.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for California to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from California to Ontario

Discover the top 6 airlines that operate flights from California to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 483,025 searches. Data last updated 3 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 170AverageC$ 428FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapestC$ 222AverageC$ 326FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
Air CanadaCheapestC$ 223AverageC$ 722FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 237AverageC$ 382FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 253AverageC$ 616FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 531AverageC$ 918FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from California to Ontario by cabin class

Find flights from California to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from California to Ontario

Find hourly flight availability from California to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 May 2024.
11%of flight departuresEarly morningMidnight to 6 am
42%of flight departuresMorning6 am to noon
25%of flight departuresAfternoonNoon to 6 pm
22%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from California to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from California today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from California to Ontario?

Cheapflights helps you find that perfect flight to Ontario from California by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from California to Ontario with no change fees?

Certainly. Search results for flights to Ontario from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from California to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from California today and book when prices fit your budget.

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