Cheapest return flights from Boston to San Jose in August from $324

AirHint found the following cheapest return flights from Boston (BOS) to San Jose (SJO) in August 2025 (see full year).

Return flights

04 Aug - 13 Aug Spirit Airlines
18 Aug - 04 Sep Spirit Airlines
06 Aug - 13 Aug Spirit Airlines
04 Aug - 21 Aug Spirit Airlines
18 Aug - 22 Aug Spirit Airlines
18 Aug - 28 Aug Spirit Airlines
18 Aug - 21 Aug Spirit Airlines
06 Aug - 21 Aug Spirit Airlines
14 Aug - 28 Aug Copa
07 Aug - 13 Aug Spirit Airlines
01 Aug - 13 Aug Spirit Airlines
29 Aug - 04 Sep Spirit Airlines
28 Aug - 04 Sep Spirit Airlines
31 Aug - 04 Sep Spirit Airlines
14 Aug - 04 Sep Spirit Airlines
31 Aug - 20 Sep Spirit Airlines
28 Aug - 01 Sep Copa
29 Aug - 02 Sep Spirit Airlines
18 Aug - 01 Sep Spirit Airlines
29 Aug - 01 Sep Spirit Airlines

Also check the deals for one-way flights from Boston to San Jose in August.

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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