as long as the flight takes!
Aflight from NY to Germany is approximately 8 to 8.5 hours long.
About 20 hours
38 minutes
4,5 to 5 hours direct flight
Approx. 14 hours
4 hours
10 hours 26 minutes
direct flight should take around 7 to 9 hours
About 10 hours.
hour and a half
About 1.5hrs