This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $311 fare is the cheapest current round-trip from Boston (BOS) to SJU on JetBlue flight B6861, departing 2026-10-14 at 11:20 with return on 2026-10-21.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.