Traveling by plane guarantees the fastest time to get from Rach Gia Port, ferry to Phu Quoc Bai Vong Port, ferry. The estimated Rach Gia Port, ferry to Phu Quoc Bai Vong Port, ferry travel time is 3h 40m. Keep in mind, however, that getting to the airport, checking-in, and passing through security checks will take some time - it’s better to come to the airport at least an hour in advance if you are flying domestically and two hours in advance if it is an international flight.
The trip duration from Rach Gia Port, ferry and Phu Quoc Bai Vong Port, ferry is more or less the same whichever airline you choose to fly.