Cheapest return flights from Boston to San Jose in May from 266€

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

Return flights

07 May - 13 May Copa
05 May - 12 May Copa
14 May - 18 May Copa
29 May - 04 Jun Spirit Airlines
18 May - 04 Jun Spirit Airlines
03 May - 08 May Spirit Airlines
03 May - 18 May Spirit Airlines
03 May - 22 May Spirit Airlines
18 May - 22 May Spirit Airlines
08 May - 18 May Spirit Airlines
08 May - 22 May Spirit Airlines
03 May - 09 May Copa
21 May - 04 Jun Spirit Airlines

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

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