Cheapest one-way flights from Ontario to San Jose in February from 139€

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Jose (SJO) in February 2026 (see full year).

One-Way flights

28 Feb Frontier Airlines
03 Feb Southwest Airlines
23 Feb United
01 Feb United
04 Feb Southwest Airlines
09 Feb Southwest Airlines
22 Feb Southwest Airlines
08 Feb Southwest Airlines
19 Feb Southwest Airlines
20 Feb Southwest Airlines

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

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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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