How long is flight from shanghai to London heathrow?

The flight time from Shanghai Pudong International Airport (PVG) to London Heathrow Airport (LHR) is approximately 11 hours and 30 minutes for a direct flight. However, the actual flight time may vary depending on factors such as wind conditions, air traffic, and the specific route taken by the airline. Additionally, the total travel time, including layovers or stopovers if there are any, may be longer. It's best to check with the specific airline or travel agent for the most up-to-date flight information.