The flight duration from Utah to Chengdu, China, typically ranges from 17 to 30 hours, depending on the number and length of layovers, as there are currently no direct flights. Most departures from Salt Lake City International Airport (SLC) involve at least one or two stops in major hubs like San Francisco, Los Angeles, Seattle, or Seoul. A relatively efficient one-stop journey can take approximately 17 hours and 25 minutes, while more common two-stop itineraries frequently average between 22 and 26 hours. Some routes with longer connections or multiple domestic transfers can extend the total travel time to over 30 hours. Factors such as the specific airline, wind conditions, and airport transfer times will influence the final duration of the trip.