It depends 47 hours can feel like a lot or a little, depending on the plane. For me, it would be very little time because I fly internationally on jets from Europe to America and Asia. A typical one way flight takes around 15 hours, so a round trip can easily be 30 hours. With a jet like the 777, it’s easy… But the real challenge comes when trying to make an international flight on a DC6 or small plane a 15 hour flight can turn into several days…