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

06 Dec - 10 Dec Spirit Airlines
06 Dec - 11 Dec Spirit Airlines
05 Dec - 10 Dec Spirit Airlines
05 Dec - 11 Dec Spirit Airlines
10 Dec - 11 Dec Spirit Airlines
04 Dec - 10 Dec Spirit Airlines
04 Dec - 11 Dec Spirit Airlines
02 Dec - 10 Dec Spirit Airlines
02 Dec - 11 Dec Spirit Airlines
04 Dec - 08 Dec Spirit Airlines
30 Dec - 14 Jan Spirit Airlines
30 Dec - 13 Jan Spirit Airlines
17 Dec - 13 Jan Spirit Airlines
15 Dec - 08 Jan Spirit Airlines
30 Dec - 10 Jan Spirit Airlines
24 Dec - 14 Jan Spirit Airlines
24 Dec - 13 Jan Spirit Airlines
29 Dec - 09 Jan Frontier Airlines
30 Dec - 11 Jan Spirit Airlines
30 Dec - 12 Jan Spirit Airlines

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

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