Cheapest return flights from Boston to San Jose in May from 253€

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

Return flights

13 May - 18 May Copa
06 May - 09 May Spirit Airlines
06 May - 20 May Spirit Airlines
03 May - 09 May Avianca
05 May - 09 May Spirit Airlines
13 May - 20 May Spirit Airlines
05 May - 20 May Spirit Airlines
06 May - 08 May Spirit Airlines
18 May - 22 May United
13 May - 29 May Spirit Airlines
13 May - 01 Jun Spirit Airlines
20 May - 01 Jun Spirit Airlines
17 May - 01 Jun Spirit Airlines
18 May - 01 Jun Spirit Airlines
26 May - 01 Jun Spirit Airlines
14 May - 01 Jun Spirit Airlines
23 May - 01 Jun Spirit Airlines
29 May - 01 Jun Spirit Airlines

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

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