This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $311 fare is the cheapest current round-trip from Atlanta (ATL) to SJU on Frontier flight F92912, departing 2026-07-30 at 17:14 with return on 2026-08-03.

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