High-speed trains on the Shanghai to Nantongxi (Nantong West) route offer a choice of Second Class and First Class seating, with Business Class available on select sets depending on the rolling stock. Services run on the Shanghai–Suzhou–Nantong Railway, crossing the Yangtze River via the Hutong Yangtze River Bridge. Line speeds are capped at up to 200 km/h (124 mph), and typical journey times range from about 1 hour to 1 hour 30 minutes. The faster options are D-series high-speed trains making limited stops—often skipping smaller stations and focusing on key calls such as Taicang or Zhangjiagang—bringing the travel time down to roughly 1 hour 5 minutes to 1 hour 15 minutes. More frequently stopping D-series trains serve additional Jiangsu stations like Changshu and Zhangjiagang, taking around 1 hour 20 minutes to 1 hour 35 minutes. Rolling stock is primarily Hexie CRH1/CRH2 EMUs, with some services occasionally using Fuxing-branded sets; both operate within the same 200 km/h (124 mph) corridor limit. Onboard, Second Class features 3+2 seating, while First Class offers wider 2+2 seats with extra legroom and power outlets. Trains that include Business Class provide 1+2 reclining seats for a more spacious layout. Travelers aiming for the quickest arrival should select the limited-stop D-series services, while those needing intermediate access can opt for the all-stations pattern.