My 16 years old nephew is going to be travelling on his own for the fist time without sitting service. He's flying with United Airlines, going from Jacksonville to Guadalajara, with a 2h layover in Houston Int. Airport. No checked baggage, only a cabin case.
Will he have to go outside security and back in again? will he be able o use the Skyway to change terminals? He has to go from terminal C to B.