Provided is a packet transmission system including: terminal apparatuses; a first transmission path connected to the terminal apparatuses and including a first wireless zone; a second transmission path connected to the terminal apparatuses and including a second wireless zone; a bandwidth monitoring unit configured to monitor bandwidth information of the first wireless zone and bandwidth information of the second wireless zone; and a path switching unit configured to determine respective minimum bandwidth values of the first transmission path and the second transmission path on the basis of the bandwidth information of the first wireless zone and the bandwidth information of the second wireless zone, and to determine through which of packet transmission paths packets are transmitted on the basis of results of the determination of the respective minimum bandwidth values.