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Cheap flights from Ontario (ONT) to San Jose (SJC)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)

How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)
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How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)
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How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)
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Cheap flights from Ontario to San Jose in May , June 2026

28 May - 06 Jun $ 542.00
ONT
Ontario
United Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
United Airlines
1 STOPS
ONT
Ontario
Pick dates
21 May - 10 Jun $ 631.00
ONT
Ontario
United Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
United Airlines
1 STOPS
ONT
Ontario
Pick dates
29 May - 04 Jun $ 1,073.00
ONT
Ontario
Alaska Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to San Jose

27 May - 31 May $ 714.00
ONT
Ontario
United Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
United Airlines
1 STOPS
ONT
Ontario
Pick dates
29 May - 31 May $ 714.00
ONT
Ontario
United Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
United Airlines
1 STOPS
ONT
Ontario
Pick dates
30 May - 31 May $ 1,203.00
ONT
Ontario
Alaska Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates

One-way flights to San Jose from Ontario

1:18 PM - 7:30 PM
United Airlines
1 Stops
7h 51m
ONT - SJC
$ 313
Kiwi
Pick dates
1:18 PM - 7:30 PM
United Airlines
1 Stops
7h 52m
ONT - SJC
$ 313
Kiwi
Pick dates
5:57 PM - 9:07 PM
Alaska Airlines
1 Stops
5h 2m
ONT - SJC
$ 632
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to San Jose (SJC)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.