Cheapest return flights from Boston to San Jose in December from 224€

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

Return flights

08 Dec - 09 Dec Spirit Airlines
04 Dec - 09 Dec Spirit Airlines
03 Dec - 09 Dec Spirit Airlines
04 Dec - 08 Dec Spirit Airlines
04 Dec - 05 Dec Spirit Airlines
03 Dec - 05 Dec Spirit Airlines
08 Dec - 16 Dec Spirit Airlines
04 Dec - 16 Dec Spirit Airlines
08 Dec - 12 Dec Spirit Airlines
04 Dec - 12 Dec Spirit Airlines
31 Dec - 14 Jan Spirit Airlines
31 Dec - 19 Jan Spirit Airlines
31 Dec - 15 Jan Spirit Airlines
31 Dec - 16 Jan Spirit Airlines
31 Dec - 13 Jan Spirit Airlines
29 Dec - 14 Jan Spirit Airlines
29 Dec - 19 Jan Spirit Airlines
29 Dec - 15 Jan Spirit Airlines
29 Dec - 16 Jan Spirit Airlines
29 Dec - 13 Jan Spirit Airlines

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

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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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