Cheap flight from San Jose to Ontario from $43
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Flights from San Jose to Ontario
Cheap flight deals from San Jose to Ontario
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
SJC 8:05 AM1h 20mNonstopONT 9:25 AMSan Jose - Ontario | Thu, Jun 5 | Southwest Airlines
ONT 6:05 AM1h 10mNonstopSJC 7:15 AMOntario - San Jose | Thu, Jun 12 | Southwest Airlines$87 $11525% OFF25% OFF$115 $87 -
SJC 12:50 PM1h 20mNonstopONT 2:10 PMSan Jose - Ontario | Thu, May 15 | Southwest Airlines
SIN 4:35 PM1h 10mNonstopSJC 5:45 PMOntario - San Jose | Thu, May 22 | Southwest Airlines$107 $1157% OFF7% OFF$115 $107
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SJC 6:55 AM1h 15mNonstopONT 8:10 AMSan Jose - Ontario | Tue, May 6 | Southwest Airlines
SIN 7:00 PM1h 10mNonstopSJC 8:10 PMOntario - San Jose | Tue, May 6 | Southwest Airlines$107 $1157% OFF7% OFF$115 $107
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SJC 6:55 AM1h 15mNonstopONT 8:10 AMSan Jose - Ontario | Wed, May 21 | Southwest Airlines
SIN 2:35 PM1h 15mNonstopSJC 3:50 PMOntario - San Jose | Wed, May 21 | Southwest Airlines$1087% OFF$115 $108
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SJC 8:15 PM1h 15mNonstopONT 9:30 PMSan Jose - Ontario | Tue, May 27 | Southwest Airlines
SIN 6:35 AM1h 15mNonstopSJC 7:50 AMOntario - San Jose | Thu, May 29 | Southwest Airlines$1086% OFF$115 $108
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SJC 8:15 PM1h 15mNonstopONT 9:30 PMSan Jose - Ontario | Tue, May 20 | Southwest Airlines
SIN 6:52 PM4h 37m1 stopsSJC 11:29 PMOntario - San Jose | Wed, May 28 | Spirit Airlines$8328% OFF$115 $83
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SJC 2:20 PM1h 15mNonstopONT 3:35 PMSan Jose - Ontario | Tue, Jun 3 | Southwest Airlines
SIN 6:52 PM4h 37m1 stopsSJC 11:29 PMOntario - San Jose | Tue, Jun 10 | Spirit Airlines$8526% OFF$115 $85
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SJC 8:15 PM1h 15mNonstopONT 9:30 PMSan Jose - Ontario | Wed, Jun 4 | Southwest Airlines
SIN 10:30 AM5h 3m1 stopsSJC 3:33 PMOntario - San Jose | Wed, Jun 11 | Spirit Airlines$9121% OFF$115 $91
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SJC 4:30 PM1h 20mNonstopONT 5:50 PMSan Jose - Ontario | Thu, May 29 | Southwest Airlines
SIN 6:52 PM4h 37m1 stopsSJC 11:29 PMOntario - San Jose | Wed, Jun 4 | Spirit Airlines$9617% OFF$115 $96
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SJC 7:41 PM11h 43m1 stopsONT 7:24 AMSan Jose - Ontario | Thu, May 8 | Frontier Airlines
SIN 11:50 AM1h 21mNonstopSJC 1:11 PMOntario - San Jose | Tue, May 13 | Hawaiian Airlines$9914% OFF$115 $99 -
SJC 1:00 PM17h 25m1 stopsONT Invalid DateSan Jose - Ontario | Tue, May 6 | Normal Airline
ONT 3:00 PM6hNonstopSJC 4:00 PMOntario - San Jose | Thu, May 8 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
SJC 2:20 PM1h 15mNonstopONT 3:35 PMSan Jose - Ontario | Tue, Jun 3 | Southwest Airlines$43 $18377% OFF77% OFF$183 $43
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SJC 12:10 PM1h 15mNonstopONT 1:25 PMSan Jose - Ontario | Wed, Jun 11 | Southwest Airlines$44 $18376% OFF76% OFF$183 $44
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SJC 8:15 PM1h 15mNonstopONT 9:30 PMSan Jose - Ontario | Wed, May 14 | Southwest Airlines$44 $18376% OFF76% OFF$183 $44
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SJC 8:05 AM1h 20mNonstopONT 9:25 AMSan Jose - Ontario | Thu, Jun 12 | Southwest Airlines$4476% OFF$183 $44
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SJC 2:20 PM1h 15mNonstopONT 3:35 PMSan Jose - Ontario | Wed, May 21 | Southwest Airlines$4476% OFF$183 $44
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SJC 12:10 PM1h 15mNonstopONT 1:25 PMSan Jose - Ontario | Tue, Jun 10 | Southwest Airlines$4476% OFF$183 $44
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SJC 6:55 AM1h 15mNonstopONT 8:10 AMSan Jose - Ontario | Wed, Jun 4 | Southwest Airlines$5371% OFF$183 $53
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SJC 8:05 AM1h 20mNonstopONT 9:25 AMSan Jose - Ontario | Thu, Jun 5 | Southwest Airlines$5371% OFF$183 $53
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SJC 7:00 AM1h 15mNonstopONT 8:15 AMSan Jose - Ontario | Thu, May 29 | Southwest Airlines$5371% OFF$183 $53
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SJC 10:00 AM1h 15mNonstopONT 11:15 AMSan Jose - Ontario | Thu, May 15 | Southwest Airlines$1726% OFF$183 $172
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SJC 1:00 PM17h 25m1 stopsONT Invalid DateSan Jose - Ontario | Tue, May 6 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | San Jose to Ontario
| Cheapest one-way flight price | $42 |
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| Cheapest round-trip ticket price | $83 |
| Off-season for travel | December |
| Peak season for travel | July |
| Flight distance | 12,771.08 km |
| Popular airline | Frontier Airlines |
When is the cheapest time to fly from San Jose to Ontario?
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Frequently Asked Questions
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When are flight tickets from San Jose (SJC) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from San Jose to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from San Jose (SJC) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around $197.
How to find a cheap flight from San Jose to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Jose to Ontario. Book your flights at the right time and save more.
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