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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 February , March 2026

26 Feb - 05 Mar $ 185.00
ONT
Ontario
Frontier Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
14 Feb - 03 Mar $ 587.00
ONT
Ontario
Alaska Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
09 Feb - 10 Mar $ 753.00
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

25 Feb - 28 Feb $ 292.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Hawaiian Airlines
1 STOPS
ONT
Ontario
Pick dates
11 Feb - 01 Mar $ 524.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Hawaiian Airlines
1 STOPS
ONT
Ontario
Pick dates
05 Feb - 28 Feb $ 770.00
ONT
Ontario
Alaska Airlines
1 STOPS
SJC
San Jose
SJC
San Jose
Alaska Airlines
1 STOPS
ONT
Ontario
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One-way flights to San Jose from Ontario

7:22 PM - 6:15 AM
Frontier Airlines
1 Stops
12h 33m
ONT - SJC
$ 94
Kiwi
Pick dates
7:22 PM - 6:15 AM
Frontier Airlines
1 Stops
12h 33m
ONT - SJC
$ 185
Kiwi
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8:48 PM - 7:00 AM
Frontier Airlines
1 Stops
11h 52m
ONT - SJC
$ 395
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.