Cheapest return flights from Boston to San Jose in January from $251

AirHint found the following cheapest return flights from Boston (BOS) to San Jose (SJO) in January 2026 (see full year).

Return flights

09 Jan - 14 Jan jetBlue
24 Jan - 10 Feb Spirit Airlines
24 Jan - 04 Feb Spirit Airlines
14 Jan - 26 Jan Spirit Airlines
14 Jan - 29 Jan Spirit Airlines
26 Jan - 10 Feb Spirit Airlines
26 Jan - 04 Feb Spirit Airlines
29 Jan - 10 Feb Spirit Airlines
29 Jan - 04 Feb Spirit Airlines
24 Jan - 26 Jan Spirit Airlines
24 Jan - 29 Jan Spirit Airlines
08 Jan - 14 Jan Spirit Airlines
26 Jan - 29 Jan Spirit Airlines
26 Jan - 07 Feb Spirit Airlines
29 Jan - 07 Feb Spirit Airlines
24 Jan - 08 Feb Spirit Airlines
11 Jan - 14 Jan Spirit Airlines
14 Jan - 23 Jan Spirit Airlines
23 Jan - 10 Feb Spirit Airlines
08 Jan - 26 Jan Spirit Airlines

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

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