Flight International Airport departs from Punta Cana International Airport at 21:20 and arrives at Madrid Adolfo Suárez Madrid–Barajas Airport at 11:25.
The flighttime is about 8h 05m. The distance travelled ("as the bird flies"): 7391 Km. So the average speed is roughly 914 Km.
There is an 6 hour time difference between Punta Cana and Madrid