Home / Airline F9Frontier Airlines (F9)Operating flights on our published routes, from the stored schedules.Published routes16Operating flights33RoutesATL to CUN1 flightATL to SJU1 flightBWI to MIA2 flightsCLE to MIA3 flightsCVG to FLL2 flightsDCA to DEN3 flightsDEN to MIA1 flightDFW to CUN1 flightDFW to FLL2 flightsFLL to SJU3 flightsMCO to LAS2 flightsORD to CUN1 flightORD to FLL1 flightPHL to FLL3 flightsPHL to SJU4 flightsTPA to DEN3 flights