This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $859 fare is the cheapest current round-trip from Philadelphia (PHL) to STI on JetBlue flight B62275, departing 2026-07-29 at 17:02 with return on 2026-08-01.

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