Non-stop flight time from Los Angeles to Shanghai is around 14 hours 30 minutes. Fastest one-stop flight between Los Angeles and Shanghai takes close to 16 hours . However, some airlines could take as long as 40 hours based on the stopover destination and waiting duration. This is the average non-stop flight time from Los Angeles to either of the major airports that serves Shanghai.
Flagstaff Pulliam Airport (IATA: FLG, ICAO: KFLG, FAA LID: FLG) is five miles south of Flagstaff, in Coconino County, Arizona. The airport is serviced by one airline, American Eagle, and is also used for general aviation.
The major cities to fly to are Las Vegas, Nevada, or Phoenix, Arizona. From each there are commuter flights to Flagstaff, Arizona, or bus tours to the Grand Canyon available. The nearest town of any consequence is Williams, Arizona where you can catch a ride on the Grand Canyon Railway to the park.