Ontario

$50+ Cheap flights from San Jose to Ontario (SJC - ONT)

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — ONT
Nov 25 — Dec 21
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Cheap flight deals from San Jose to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

May

Round-trip from

$116
(Trip.com)

One-way from

$50
(Frontier)
Provider with most accurate pricing for San Jose-Ontario flight deals.
Provider most trusted by Cheapflights users for San Jose-Ontario flights.
High demand for flights, 42% potential price rise
Best time to find cheap flights, 62% potential price drop
From San Jose to Ontario
One-way flight from San Jose to Ontario

Find flight deals from San Jose to Ontario

Cheapest flights from San Jose to Ontario
Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Booking.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/177:26 pmSJC - ONT
1 stop17h 13mFrontier
Fri 12/2012:59 amONT - SJC
1 stop9h 41mFrontier
Deal found 11/19$117
This Southwest deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/178:00 amSJC - ONT
Nonstop1h 15mSouthwest
Tue 12/246:15 amONT - SJC
Nonstop1h 20mSouthwest
Deal found 11/19$188
This Alaska Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:15 amSJC - ONT
1 stop6h 43mAlaska Airlines
Mon 12/166:00 amONT - SJC
1 stop5h 52mAlaska Airlines
Deal found 11/20$312
This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/711:19 amSJC - ONT
2 stops9h 45mMultiple Airlines
Mon 12/911:46 amONT - SJC
1 stop4h 32mMultiple Airlines
Deal found 11/20$395
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:00 amSJC - ONT
1 stop6h 06mAmerican Airlines
Thu 1/24:25 pmONT - SJC
1 stop6h 24mAmerican Airlines
Deal found 11/20$455
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1010:55 amSJC - ONT
1 stop9h 52mUnited Airlines
Tue 12/175:05 amONT - SJC
1 stop12h 45mUnited Airlines
Deal found 11/19$483

Find flights from San Jose to Ontario within your budget

Customize your flight search to find flights from San Jose 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JoseOntario

SJC - ONT

SJCONT

San Jose

Sat 1/18

5:19 pm-7:11 am

1 stop13h 52m

Ontario

Wed 1/22

7:45 am-12:11 pm

1 stop28h 26m

$116

San JoseOntario

SJC - ONT

SJCONT

San Jose

Tue 12/17

8:00 am-9:15 am

Nonstop1h 15m

Ontario

Tue 12/24

6:15 am-7:35 am

Nonstop1h 20m

$188

San JoseOntario

SJC - ONT

SJCONT

San Jose

Sat 1/11

11:58 am-5:04 pm

1 stop5h 06m

Ontario

Wed 1/15

6:00 am-12:15 pm

1 stop6h 15m

$282

San JoseOntario

SJC - ONT

SJCONT

San Jose

Fri 1/3

10:00 am-11:59 pm

2 stops13h 59m

Ontario

Sun 1/5

12:59 am-11:40 am

1 stop10h 41m

$349

San JoseOntario

SJC - ONT

SJCONT

San Jose

Sat 2/1

3:54 pm-9:51 am

2 stops17h 57m

Ontario

Wed 2/12

5:10 am-9:30 pm

1 stop16h 20m

$473

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 2/12

4:03 pm-12:09 am

1 stop8h 06m

$50

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 12/25

8:00 am-9:15 am

Nonstop1h 15m

$94

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 1/8

12:08 pm-5:04 pm

1 stop4h 56m

$141

San JoseOntario

SJC - ONT

SJCONT

San Jose

Fri 1/10

8:00 pm-9:51 am

2 stops13h 51m

$242

San JoseOntario

SJC - ONT

SJCONT

San Jose

Mon 12/2

6:00 am-12:03 pm

1 stop6h 03m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 12 results
1
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Compare providers for flights from San Jose to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Jose to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Jose-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Jose-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Jose-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Jose to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Jose with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Jose to Ontario

Get recent, data-driven insights about flights from San Jose to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from San Jose to Ontario?

Currently, September is the cheapest month in which you can book a flight from San Jose to Ontario (average of $236). Flying from San Jose to Ontario in December is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJC to ONT?

Find hourly flight availability from San Jose 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 November 20, 2024.

It’s optimal to fly from San Jose to Ontario in the afternoon. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from San Jose to Ontario?

Use this chart to determine the cheapest time to fly round-trip from San Jose to Ontario. Price data was last updated on November 10, 2024.

Travelers seeking maximum savings on their San Jose to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 November 20, 2024.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Alaska Airlines, United Airlines and Frontier. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.1
Very good
5,014 reviews
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.0
Very good
9,461 reviews
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.0
Very good
8,756 reviews
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.4
Good
9,171 reviews
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.2
Good
10,000 reviews
8.1
Very good
5,014 reviews

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from San Jose to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Jose to Ontario?

    To fly from San Jose to Ontario, you need to book a flight from San Jose (SJC) to Ontario (ONT). Nonstop flights to Ontario from San Jose take 1h 15m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from San Jose to Ontario offered by 4 different airlines.

  • What are the cheapest airlines flying from San Jose to Ontario round-trip?

    According to our current data, Frontier ($116), Southwest ($188), and Alaska Airlines ($282) offers the cheapest pricing from San Jose to Ontario. Frontier is 35% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Jose to Ontario one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $50. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from San Jose to Ontario for a low price.

  • What are the cheapest flights from San Jose to Ontario?

    Looking at all options, your cheapest flight can be booked for $130. While the most popular route (San Jose - Ontario) can be booked for $110 on average our data indicates $271 when flying from San Jose to Ontario.

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

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

  • How can I find direct flights from San Jose to Ontario?

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

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

    Yes. Cheapflights offers flight deals from San Jose 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.

  • What is the cheapest month to book a flight from San Jose to Ontario?

    Currently, September is the cheapest month in which you can book a flight from San Jose to Ontario (average of $236). Flying from San Jose to Ontario in December is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for San Jose to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from San Jose to Ontario

Discover the top 4 airlines that operate flights from San Jose 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$37Average$89FlexibilityNo cancel feeOn-time65%
FrontierCheapest$38Average$100FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$138Average$316FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$191Average$276FlexibilityNo cancel feeOn-time63%
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