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$56+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — ONT
Oct 7 — Oct 141
From?
To?
Mon 10/7
Mon 10/14
1 adult, Economy
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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 October 2, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$100
(Frontier)

One-way from

$56
(Frontier)
High demand for flights, 52% potential price rise
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Best time to find cheap flights, 62% potential price drop
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From San Jose to Ontario
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One-way flight from San Jose to Ontario
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Cheap San Jose to Ontario flights in October & November 2024

Find cheap flight options from San Jose to Ontario specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Prices were last updated on October 2, 2024.
Listed are some of the best fares we've found on flights departing from San Jose to Ontario in 2024. For more flight deals, be sure to check back very soon.
This Frontier deal was found by Cheapflights users on 10/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/249:59 pmSJC - ONT
1 stop15h 56mFrontier
Mon 10/2810:59 pmONT - SJC
1 stop17h 56mFrontier
Deal found 10/2$100
This Southwest deal was found by Cheapflights users on 10/1. 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.
Wed 11/208:00 amSJC - ONT
Nonstop1h 15mSouthwest
Tue 12/37:35 pmONT - SJC
Nonstop1h 15mSouthwest
Deal found 10/1$169
This Travelocity deal was found by Cheapflights users on 9/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/208:28 amSJC - ONT
1 stop10h 42mMultiple Airlines
Tue 12/312:00 pmONT - SJC
1 stop4h 51mMultiple Airlines
Deal found 9/30$197
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Tue 10/2912:49 pmSJC - ONT
1 stop5h 36mAmerican Airlines
Tue 11/512:53 pmONT - SJC
1 stop5h 50mAmerican Airlines
Deal found 9/30$268
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/306:15 amSJC - ONT
1 stop12h 55mAlaska Airlines
Wed 11/67:00 amONT - SJC
1 stop14h 21mAlaska Airlines
Deal found 10/1$272
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/58:30 amSJC - ONT
1 stop12h 14mUnited Airlines
Wed 11/65:05 amONT - SJC
1 stop12h 45mUnited Airlines
Deal found 10/1$366

San Jose to Ontario 2024 flight deals

Discover exclusive flight deals for travel between San Jose and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
Listed are some of the best fares we've found on flights departing from San Jose to Ontario in 2024. For more flight deals, be sure to check back very soon.
This Frontier deal was found by Cheapflights users on 10/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/249:59 pmSJC - ONT
1 stop15h 56mFrontier
Mon 10/2810:59 pmONT - SJC
1 stop17h 56mFrontier
Deal found 10/2$100
This Southwest deal was found by Cheapflights users on 9/30. 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.
Wed 11/208:00 amSJC - ONT
Nonstop1h 15mSouthwest
Tue 12/31:15 pmONT - SJC
Nonstop1h 20mSouthwest
Deal found 9/30$169
This Travelocity deal was found by Cheapflights users on 9/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/208:28 amSJC - ONT
1 stop10h 42mMultiple Airlines
Tue 12/312:00 pmONT - SJC
1 stop4h 51mMultiple Airlines
Deal found 9/30$197
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Tue 10/2912:49 pmSJC - ONT
1 stop5h 36mAmerican Airlines
Tue 11/512:53 pmONT - SJC
1 stop5h 50mAmerican Airlines
Deal found 9/30$268
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/306:15 amSJC - ONT
1 stop12h 55mAlaska Airlines
Wed 11/67:00 amONT - SJC
1 stop14h 21mAlaska Airlines
Deal found 10/1$272
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/58:30 amSJC - ONT
1 stop12h 14mUnited Airlines
Wed 11/65:05 amONT - SJC
1 stop12h 45mUnited Airlines
Deal found 10/1$366

San Jose to Ontario flights leaving soon

Find last-minute flight options from San Jose 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 2,666,977 searches. Data last updated October 2, 2024.
Consider one of these great deals we found on last-minute flights from San Jose to Ontario. Users should examine the flight details to ensure there are no surprises.
This Trip.com deal was found by Cheapflights users on 10/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/99:59 pmSJC - ONT
1 stop13h 41mFrontier
Wed 10/166:30 amONT - SJC
1 stop28h 15mFrontier
Deal found 10/1$116
This Orbitz deal was found by Cheapflights users on 9/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/109:59 pmSJC - ONT
1 stop9h 09mMultiple Airlines
Tue 10/157:56 pmONT - SJC
1 stop11h 52mMultiple Airlines
Deal found 9/30$257
This Southwest deal was found by Cheapflights users on 10/1. 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.
Sat 10/127:45 amSJC - ONT
Nonstop1h 15mSouthwest
Sat 10/199:05 amONT - SJC
1 stop3h 20mSouthwest
Deal found 10/1$410
This Alaska Airlines deal was found by Cheapflights users on 9/30. 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.
Fri 10/1112:54 pmSJC - ONT
1 stop9h 58mAlaska Airlines
Mon 10/147:56 pmONT - SJC
1 stop11h 52mAlaska Airlines
Deal found 9/30$433
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/101:34 pmSJC - ONT
1 stop9h 24mVolaris
Mon 10/1412:58 amONT - SJC
1 stop11h 06mVolaris
Deal found 9/30$686
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/1110:55 amSJC - ONT
2 stops12h 01mUnited Airlines
Mon 10/145:15 amONT - SJC
1 stop17h 14mUnited Airlines
Deal found 10/1$788
This Delta deal was found by Cheapflights users on 9/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/102:30 pmSJC - ONT
2 stops9h 17mDelta
Tue 10/155:00 pmONT - SJC
1 stop6h 47mDelta
Deal found 9/30$1,359
This American Airlines deal was found by Cheapflights users on 10/1. 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.
Mon 10/712:49 pmSJC - ONT
1 stop5h 36mAmerican Airlines
Fri 10/119:50 amONT - SJC
2 stops12h 22mAmerican Airlines
Deal found 10/1$1,450

One-way flights to Ontario from San Jose

Search for one-way flight options from San Jose 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 2,666,977 searches. Data last updated October 2, 2024.
Users traveling one-way from San Jose to Ontario can select one of these great deals. Users can also find round-trip San Jose to Ontario flights by using the search form above.
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/249:59 pmSJC - ONT
1 stop9h 09mFrontier
Deal found 9/30$56
This Southwest deal was found by Cheapflights users on 10/1. 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.
Wed 12/111:15 pmSJC - ONT
Nonstop1h 15mSouthwest
Deal found 10/1$85
This Alaska Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 11/510:00 amSJC - ONT
2 stops10h 03mAlaska Airlines
Deal found 10/2$136
This American Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 12/36:00 amSJC - ONT
1 stop12h 29mAmerican Airlines
Deal found 10/2$149
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Mon 11/43:40 pmSJC - ONT
2 stops18h 13mUnited Airlines
Deal found 10/1$203
This Delta deal was found by Cheapflights users on 9/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/36:15 amSJC - ONT
1 stop16h 26mDelta
Deal found 9/30$277
This lol.travel deal was found by Cheapflights users on 10/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/117:15 amSJC - ONT
1 stop14h 55mHawaiian Airlines
Deal found 10/1$428

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 2,666,977 searches. Data last updated October 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$100 - $366

Route

Depart

Return

Price

San JoseOntario

SJC - ONT

SJCONT

San Jose

Thu 10/24

1 stop15h 56m

Ontario

Mon 10/28

1 stop17h 56m

$100

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 11/20

Nonstop1h 15m

Ontario

Tue 12/3

Nonstop1h 15m

$169

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 11/20

1 stop10h 42m

Ontario

Tue 12/3

1 stop4h 51m

$197

San JoseOntario

SJC - ONT

SJCONT

San Jose

Wed 10/30

1 stop12h 55m

Ontario

Wed 11/6

1 stop14h 21m

$272

San JoseOntario

SJC - ONT

SJCONT

San Jose

Thu 10/17

1 stop6h 25m

Ontario

Tue 11/5

1 stop5h 50m

$323

San JoseOntario

SJC - ONT

SJCONT

San Jose

Tue 11/5

1 stop12h 14m

Ontario

Wed 11/6

1 stop12h 45m

$366

Flights are sorted by cheapest first

Deals found on 10/2

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, August is the cheapest month in which you can book a flight from San Jose to Ontario (average of $19). Flying from San Jose to Ontario in December is currently the most expensive (average of $49). 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 October 2, 2024.

It’s optimal to fly from San Jose to Ontario in the afternoon. By choosing this option you can save up to 39% 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 September 29, 2024.

Travelers seeking maximum savings on their San Jose to Ontario flight should consider departing on Tuesday at noon 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.

Find deals

What are the most popular airlines that fly from San Jose to Ontario?

Our users search for these airlines the most when looking for flights from San Jose to Ontario. Data last updated on October 2, 2024.

Before booking your flight from San Jose to Ontario check out the most popular airlines for this route: Frontier, Southwest or Spirit Airlines.

Frontier

Frontier

From $38

Southwest

Southwest

From $178

Spirit Airlines

Spirit Airlines

From $37

Alaska Airlines

Alaska Airlines

From $138

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 October 2, 2024.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Frontier, Southwest and Alaska Airlines. 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.
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

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

Southwest
8.2
Very good
5,249 reviews
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,378 reviews
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

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

Delta
8.0
Very good
9,010 reviews
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

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

Hawaiian Airlines
7.9
Good
2,307 reviews
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

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

United Airlines
7.4
Good
9,398 reviews
Southwest
8.2
Very good
5,249 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.2

Boarding

8.3

Entertainment

7.8

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 is 1 outbound flight from San Jose to Ontario offered by 5 different airlines.

  • Can I find flights from San Jose to Ontario for under $100 on Cheapflights?

    Yes, there are multiple flights from San Jose to Ontario for under $100. The cheapest flight booked recently is on Frontier for just $100, but on average you can expect to pay $237.

  • Are there nonstop flights from San Jose to Ontario for under $200 on Cheapflights?

    Cheapflights has at least 1 direct flight from San Jose to Ontario under $200. A good price for a nonstop flight from San Jose to Ontario is less than $169.

  • Are there last-minute flights available from San Jose to Ontario for under $200?

    There are currently 8+ open flights from San Jose to Ontario within the next 7 days for less than $200.

  • What days are nonstop flights available from San Jose to Ontario?

    Nonstop flights can be found on the following days: Sunday.

  • How many flights depart from San Jose to Ontario on average per day?

    On average 1 flight departs from San Jose to Ontario per day.
    Morning (6am - Noon) - 100% of flight departures

  • How long is the flight from San Jose to Ontario?

    A quick flight from San Jose to Ontario can take about 1h 15m. Frontier provides one of the quickest options available for as low as $100. The distance between San Jose and Ontario is about 334 mi. This flight may include one or multiple stops.

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

    According to our current data, Frontier ($100), Southwest ($169), and Alaska Airlines ($272) offers the cheapest pricing from San Jose to Ontario. Frontier is 38% 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 $56. 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 $59. While the most popular route (San Jose - Ontario) can be booked for $100 on average our data indicates $217 when flying from San Jose to Ontario.

  • What does SJC to ONT mean?

    San Jose Airport is SJC and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

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

    The amount of baggage you can bring on your San Jose 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 San Jose to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Jose 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 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.

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

    Many airlines flying from San Jose 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 San Jose to Ontario?

    Yes, you can often find last-minute deals on San Jose 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 San Jose to Ontario flight deals updated?

    The San Jose to Ontario flight deals you see on this page were last updated on 10/2.

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

    Currently, August is the cheapest month in which you can book a flight from San Jose to Ontario (average of $19). Flying from San Jose to Ontario in December is currently the most expensive (average of $49). 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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