$88 Cheap Flights from Ontario (ONT) to San Jose (SJC)

View $88 flight on Tue, Jul 8, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)

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Find available prices by choosing your travel dates.

Cheap Flights from Ontario to San Jose (ONT-SJC)

Prices were available within the past 7 days and start at $88 for one-way flights and $92 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Jul 1 - Wed, Jul 9
ONT
Ontario
SJC
San Jose
$92 Roundtrip, found 2 days ago
$92
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Jul 1 from Ontario to San Jose, returning Wed, Jul 9, priced at $92 found 2 days ago
Southwest Airlines
Tue, Jul 1 - Wed, Jul 9
ONT
Ontario
SJC
San Jose
$97 Roundtrip, found 2 days ago
$97
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Jul 1 from Ontario to San Jose, returning Wed, Jul 9, priced at $97 found 2 days ago
Southwest Airlines
Tue, Jul 1 - Wed, Jul 9
ONT
Ontario
SJC
San Jose
$102 Roundtrip, found 2 days ago
$102
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Jul 1 from Ontario to San Jose, returning Wed, Jul 9, priced at $102 found 2 days ago
Southwest Airlines
Tue, Jul 1 - Wed, Jul 9
ONT
Ontario
SJC
San Jose
$122 Roundtrip, found 2 days ago
$122
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Jul 1 from Ontario to San Jose, returning Wed, Jul 9, priced at $122 found 2 days ago
Southwest Airlines
Thu, May 29 - Sat, May 31
ONT
Ontario
SJC
San Jose
$124 Roundtrip, found 2 days ago
$124
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Thu, May 29 from Ontario to San Jose, returning Sat, May 31, priced at $124 found 2 days ago
Southwest Airlines
Mon, Jun 30 - Thu, Jul 3
ONT
Ontario
SJC
San Jose
$126 Roundtrip, found 2 days ago
$126
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Mon, Jun 30 from Ontario to San Jose, returning Thu, Jul 3, priced at $126 found 2 days ago
Frontier Airlines
Mon, May 19 - Tue, May 20
ONT
Ontario
SJC
San Jose
$149 Roundtrip, found 2 days ago
$149
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, May 19 from Ontario to San Jose, returning Tue, May 20, priced at $149 found 2 days ago
American Airlines
Tue, Jun 24 - Tue, Jul 1
ONT
Ontario
SJC
San Jose
$192 Roundtrip, just found
$192
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 24 from Ontario to San Jose, returning Tue, Jul 1, priced at $192 just found
Alaska Airlines
Wed, May 21 - Wed, May 28
ONT
Ontario
SJC
San Jose
$263 Roundtrip, found 5 days ago
$263
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, May 21 from Ontario to San Jose, returning Wed, May 28, priced at $263 found 5 days ago
Hawaiian Airlines
Tue, May 20 - Wed, May 21
ONT
Ontario
SJC
San Jose
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, May 20 from Ontario to San Jose, returning Wed, May 21, priced at $263 found 2 days ago

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC) cost?
Cheap return fares from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC) start at $77. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving ONT on May 22 2025 and touching down at SJC. The price was last updated on April 26 2025 and has not changed since.
What is the cheapest month to fly from ONT to SJC?
The cheapest flights from ONT to SJC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Board a nonstop flight with Southwest Airlines and go straight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC).
What is the cheapest airline that flies from ONT to SJC?
With prices as low as $39 for a one-way flight from ONT to SJC, Southwest Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ONT on July 1 2025. Prices were last updated on April 26 2025 and have not changed since.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
When jetting out of Los Angeles - Ontario Intl. Airport (ONT), you’ll have your pick from an average of 3 daily direct flights to Norman Y. Mineta San Jose Intl. Airport (SJC).
What are the most popular departure times for flights from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Flights between ONT and SJC are their busiest at 8 AM. If you’re after a more relaxed experience and possibly cheaper fares, choose a departure that’s outside typical rush times.
What day of the week has the most flights from ONT to SJC?
If you depart on a Friday, you’ll get the biggest range of options for flights from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC).
What is the earliest flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Los Angeles - Ontario Intl. Airport (ONT)’s first flight to Norman Y. Mineta San Jose Intl. Airport (SJC) leaves at approximately 6:00AM UTC-8. With a flight time of 1h 15m, you’ll touch down at around 7:15AM UTC-8.
How long does it take to fly from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
It takes around 1 hour and 18 minutes to travel the 330 mi from ONT to SJC.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Book a flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Jose from Los Angeles - Ontario Intl. Airport (ONT)?
Come in for landing at one of these San Jose airports following your direct flight from Los Angeles - Ontario Intl. Airport (ONT):

  • San Francisco Intl. Airport (SFO)
  • Norman Y. Mineta San Jose Intl. Airport (SJC)
  • Oakland Intl. Airport (OAK)

Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC) last-minute?
Booking your plane ticket from ONT to SJC shortly before your trip is usually more expensive. But if you’re flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book an ONT to SJC flight and hotel package?
Compared with arranging hotels and flights separately, booking an ONT to SJC flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one convenient place will take the stress out of travel planning. Simply pick your flights and select from our wide range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
In most cases, you can cancel or modify your ONT to SJC flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you’d like more information, head to our Customer Service portal.
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