A flight from Las Vegas (LAS) to Chengdu (CTU/TFU) typically takes between 21 and 36 hours, as there are currently no non-stop services available between the two cities. The duration varies significantly based on the number of stops and the length of layovers, with most routes requiring at least one or two connections in major hubs like Los Angeles, San Francisco, Seoul, or Beijing. A relatively efficient one-stop journey generally averages around 23 to 25 hours, while flights with multiple connections or longer transit times can exceed 35 hours. Because this long-haul trip covers a distance of approximately 7,200 miles, actual travel times are also subject to factors such as weather conditions, air traffic, and specific airline schedules.