The quickest way from Guangzhou to Nantong is to take the Z 100 bus from guangzhou east railway station to Shanghai Station, and then get out of the North Square of Shanghai Station, across the road is the Shanghai Long-distance Bus Station, where you can take a bus to Nantong. The passenger mileage from Shanghai to Nantong is 164 km, and it takes more than two hours to get to Nantong! Shanghai to Nantong, 15 minutes, you can go at any time!