When traveling from Chengdu to Chongqing by train or bullet train, the departure stations are usually Chengdu East Railway Station or Chengdu South Railway Station. The arrival stations include Chongqing North Railway Station, Chongqing West Railway Station, and Shapingba Railway Station. You can check specific information such as train schedules, departure times, and ticket prices on the official website (12306.cn) or the mobile app of China Railway 12306. You can also use travel ticketing platforms like Ctrip or Trip.com for relevant inquiries.