Flight London Gatwick Airport departs from London London Gatwick Airport at 11:50 and arrives at Punta Cana International Airport at 17:05.
The flighttime is about 10h 15m. The distance travelled ("as the bird flies"): 7974 Km. So the average speed is roughly 778 Km.
There is an 5 hour time difference between London and Punta Cana