Flight General Edward Lawrence Logan International Airport departs from Boston General Edward Lawrence Logan International Airport at 22:29 and arrives at Madrid Adolfo Suárez Madrid–Barajas Airport at 11:30.
The flighttime is about 7h 01m. The distance travelled ("as the bird flies"): 7500 Km. So the average speed is roughly 1069 Km.
There is an 6 hour time difference between Boston and Madrid