In the last five years when flying east, I always took flights which departed from Frankfurt or Düsseldorf between 20.00 and 22.00 hours. I like to take evening respectively night flights because this gives you almost the whole day before leaving home to the airport and when you are lucky you can sleep on the plane. Sometimes I can sleep on a night flight at other times I can't. Then a good book helps to kill the time. The only disadvantage of late flights is, that they are mostly very popular and the planes relatively full. This time I have booked a flight which leaves Frankfurt at 15.20 hours so I have to leave home in the late morning.