Cheapest return flights from Boston to San Jose in May from 290€

Best time to book flights for Boston (BOS) to San Jose (SJO) flights at AirHint

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

Return flights

17 May - 21 May Spirit Airlines
12 May - 16 May Spirit Airlines
29 May - 03 Jun Copa
28 May - 31 May United

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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