Cheapest return flights from Boston to San Jose in August from $218

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

Return flights

31 Aug - 05 Sep Spirit Airlines
31 Aug - 04 Sep Spirit Airlines
30 Aug - 05 Sep Spirit Airlines
31 Aug - 09 Sep Spirit Airlines
31 Aug - 06 Sep Spirit Airlines
31 Aug - 17 Sep Spirit Airlines
31 Aug - 10 Sep Spirit Airlines
31 Aug - 13 Sep Spirit Airlines
30 Aug - 04 Sep Spirit Airlines
30 Aug - 02 Sep Spirit Airlines
25 Aug - 30 Aug Spirit Airlines
27 Aug - 30 Aug Spirit Airlines
24 Aug - 30 Aug Spirit Airlines
25 Aug - 26 Aug Copa
29 Aug - 30 Aug Spirit Airlines
22 Aug - 30 Aug Spirit Airlines
22 Aug - 25 Aug Spirit Airlines
24 Aug - 26 Aug Spirit Airlines
21 Aug - 28 Aug Spirit Airlines
21 Aug - 30 Aug 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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