Every Boston–San José fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/boston-to-san-jose-costa-rica/#2026-11-16-2026-11-24-AAhttps://flight.deals/flights/boston-to-san-jose-costa-rica/#2026-11-16-2026-11-24-AABOS → SJO round-trip on American, 2026-11-16 to 2026-11-24 (8 nights). Cached fare $371. Not enough cached history on this route yet to say what it usually costs.Tue, 01 Sep 2026 12:09:07 GMT