Flight Dulles International Airport departs from Washington Dulles International Airport at 12:30 and arrives at Honolulu International Airport at 15:02.The flight has a short stop at Denver.
The flighttime is about 8h 32m. The distance travelled ("as the bird flies"): 8886 Km. So the average speed is roughly 1041 Km.
There is an 6 hour time difference between Washington and Honolulu