According to China’s updated 240-hour visa-free transit policy (effective December 2024), U.S. citizens can enter visa-free via Hong Kong West Kowloon Station with a passport, Hong Kong-Zhangjiajie high-speed train ticket, and confirmed Japan departure flight, staying up to 10 days. Your itinerary (Hong Kong→Zhangjiajie 5 days→Japan) fully qualifies—no prior visa needed. Book your high-speed train tickets and interconnected transport through our agency (service@intotravelchina.com) to secure Zhangjiajie scenic area tickets and hotels for a seamless trip!