Every Miami–San Juan fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/miami-to-san-juan/#2026-09-04-2026-09-06-F9https://flight.deals/flights/miami-to-san-juan/#2026-09-04-2026-09-06-F9MIA → SJU round-trip on Frontier Airlines, 2026-09-04 to 2026-09-06 (2 nights). Cached fare $187 vs typical $245.Tue, 01 Sep 2026 12:09:07 GMT