The flight distance from Chicago to Chengdu is approximately 7,400 miles (11,900 kilometers). Depending on the specific flight path and destination airport, such as Chengdu Shuangliu International Airport (CTU), sources estimate the distance to be between 7,366 and 7,439 miles. Because there are currently no direct commercial flights between O'Hare International Airport (ORD) and Chengdu, the actual travel distance may vary based on layover locations, though the direct aerial route remains one of the longest hauls in global aviation, typically requiring over 23 hours of total travel time.