Cheapest one-way flights from Ontario to San Jose in April from $207

Best time to book flights for Ontario (ONT) to San Jose (SJO) flights at AirHint

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

One-Way flights

01 Apr Avianca
08 Apr Avianca
02 Apr Southwest Airlines
16 Apr Southwest Airlines
13 Apr Southwest Airlines
24 Apr Southwest Airlines
09 Apr Southwest Airlines
18 Apr Southwest Airlines
06 Apr Southwest Airlines
19 Apr Southwest Airlines

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

Skyscanner

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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