Cheapest return flights from Boston to San Jose in December from 214€

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

Return flights

20 Dec - 24 Dec United
21 Dec - 26 Dec United
21 Dec - 24 Dec United
30 Dec - 06 Jan Frontier Airlines
24 Dec - 28 Dec United
29 Dec - 09 Jan Frontier Airlines
25 Dec - 12 Jan Frontier Airlines
20 Dec - 22 Dec Spirit Airlines
20 Dec - 25 Dec Spirit Airlines
20 Dec - 23 Dec Spirit Airlines
29 Dec - 12 Jan Spirit Airlines
20 Dec - 09 Jan Spirit Airlines
29 Dec - 17 Jan Spirit Airlines
29 Dec - 16 Jan Spirit Airlines
24 Dec - 31 Dec United
29 Dec - 14 Jan Spirit Airlines
27 Dec - 29 Dec Frontier Airlines
20 Dec - 29 Dec Spirit Airlines
29 Dec - 10 Jan Spirit Airlines
28 Dec - 12 Jan Spirit Airlines

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

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