Why would anyone want to sit on a plane for over 18 hours? An economist takes the world’s longest flight

By Jay Zagorsky for The Conversation

A customer waits for the world’s longest flight from Singapore to Newark. AP Photo/Wong Maye-E

Recently Qantas announced plans to conduct test flights from New York and London to Sydney and two other Australian cities.

If commercialized, these routes would become the longest in the world at about 19 hours. Qantas said it…