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

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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 January , February 2026

29 Jan - 05 Feb $ 259.00
ONT
Ontario
Frontier Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
20 Jan - 04 Feb $ 558.00
ONT
Ontario
Alaska Airlines
2 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
2 STOPS
ONT
Ontario
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18 Jan - 03 Feb $ 774.00
ONT
Ontario
Alaska Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to San Jose

29 Jan - 31 Jan $ 516.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Hawaiian Airlines
1 STOPS
ONT
Ontario
Pick dates
21 Jan - 31 Jan $ 600.00
ONT
Ontario
Hawaiian Airlines
2 STOPS
SJC
San Jose
SJC
San Jose
Hawaiian Airlines
2 STOPS
ONT
Ontario
Pick dates
18 Jan - 31 Jan $ 978.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Hawaiian Airlines
1 STOPS
ONT
Ontario
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One-way flights to San Jose from Ontario

1:24 PM - 7:10 PM
United Airlines
1 Stops
7h 32m
ONT - SJC
$ 219
Kiwi
Pick dates
5:05 AM - 11:50 AM
United Airlines
1 Stops
8h 33m
ONT - SJC
$ 280
Kiwi
Pick dates
5:59 PM - 9:04 PM
Hawaiian Airlines
1 Stops
5h
ONT - SJC
$ 609
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.