To provide a communication terminal capable of selecting a communication interface corresponding to a communicable wireless network without the use of a route determination dedicated packet. A packet generation means 93 generates a packet based on data for receiving a service from a destination device. A control means 94 selects a communication interface 91 from among a plurality of communication interfaces 91, instructs a packet processing means 95 to send a packet generated by the packet generation means 93 to the communication interface 91, and when a response packet for the packet is not input until a timeout determination reference time, selects a different communication interface 91 from the communication interface 91, instructs the packet processing means 95 to send a copy of the packet to the communication interface 91.