Flight Dulles International Airport departs from Washington Dulles International Airport at 22:10 and arrives at Lisbon Humberto Delgado Airport at 10:15.
The flighttime is about 8h 05m. The distance travelled ("as the bird flies"): 7596 Km. So the average speed is roughly 940 Km.
There is an 4 hour time difference between Washington and Lisbon
