Cheapest one-way flights from Ontario to San Jose in November from $158

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Jose (SJO) in November 2025 (see full year).

One-Way flights

18 Nov Frontier Airlines
11 Nov Avianca
19 Nov Frontier Airlines
03 Nov Frontier Airlines
08 Nov Frontier Airlines
13 Nov Avianca
12 Nov Southwest Airlines
04 Nov Southwest Airlines
24 Nov Frontier Airlines
15 Nov Southwest Airlines

Also check the deals for return flights from Ontario to San Jose in November.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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