Sea freight from China to USA is a practical option for large, heavy and non-urgent commercial cargo. This guide explains FCL and LCL shipping, major routes from Shenzhen, Ningbo, Shanghai and Qingdao to Los Angeles, Long Beach, New York, Savannah and Houston, plus transit times, CY–CY and CFS–CFS terms, ISF and vessel-manifest checkpoints, destination charges, demurrage, detention and port-to-door delivery.