High-speed G-series trains operated by China Railway cover most of the Shanghai to Yongchuan journey on dedicated high-speed lines. Services typically use CR400 “Fuxing” sets with Second, First, and Business Class, power outlets, and a dining car. Expect 300–350 km/h (186–217 mph) running on the Shanghai–Nanjing and Xuzhou–Zhengzhou corridors, then onward toward Chongqing before a short high-speed segment on the Chengdu–Chongqing intercity line to Yongchuan East. With a single change—usually in Chongqing (North or West)—the total travel time is about 9.5–11.5 hours. Some routings go via Chengdu East instead; these add time and typically take around 11–13 hours. Key intermediate stops on faster services often include Nanjing South, Xuzhou East, and Zhengzhou East. Slower options include D-series EMUs and classic Z/K overnight trains between Shanghai and Chongqing. These use upgraded conventional tracks at 160–200 km/h (99–124 mph) for D-trains and 120–160 km/h (75–99 mph) for Z/K trains, taking roughly 20–30 hours to reach the Chongqing hub, followed by a separate high-speed hop (300–350 km/h, 186–217 mph) to Yongchuan East. Travelers focused on speed should choose the G-series connection; budget-conscious passengers may prefer the overnight sleeper (Hard/Soft Sleeper).