Flight Narita International Airport departs from Tokyo Narita International Airport at 20:55 and arrives at Addis Ababa Bole International Airport at 07:45.The flight has a short stop at Seoul.
The flighttime is about 16h 50m. The distance travelled ("as the bird flies"): 10879 Km. So the average speed is roughly 646 Km.
There is an 6 hour time difference between Tokyo and Addis Ababa