This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $407 fare is the cheapest current round-trip from Philadelphia (PHL) to STI on JetBlue flight B6375, departing 2026-06-10 at 07:00 with return on 2026-06-21.

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