Cheapest return flights from Ontario to San Jose in March from $339

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

AirHint found the following cheapest return flights from Ontario (ONT) to San Jose (SJO) in March 2025 (see full year).

Return flights

01 Mar - 15 Mar Avianca
27 Mar - 01 Apr Avianca
13 Mar - 24 Mar Avianca
24 Mar - 31 Mar Volaris
01 Mar - 14 Mar Avianca
16 Mar - 22 Mar Volaris
18 Mar - 26 Mar Southwest Airlines
21 Mar - 29 Mar Volaris
06 Mar - 10 Mar Avianca
22 Mar - 30 Mar Avianca
22 Mar - 28 Mar Avianca
28 Mar - 06 Apr Southwest Airlines

Also check the deals for one-way flights from Ontario to San Jose in March.

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose