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

Return flights

02 Mar - 06 Mar	American Airlines
06 Mar - 10 Mar	American Airlines
01 Mar - 02 Mar	Spirit Airlines
06 Mar - 11 Mar	American Airlines
01 Mar - 01 Mar	Spirit Airlines
15 Mar - 20 Mar	jetBlue
01 Mar - 20 Mar	Spirit Airlines
07 Mar - 11 Mar	Frontier Airlines
02 Mar - 20 Mar	Spirit Airlines
14 Mar - 21 Mar	jetBlue

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

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Boston to San Jose in March from $264

Return flights