This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $294 fare is the cheapest current round-trip from Boston (BOS) to MIA on Frontier flight F93057, departing 2026-08-20 at 12:45 with return on 2026-08-23.

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