Plenty of obvious edicts of air-travel  etiquette are effortlessly acquire.

Many rules of aeroplane decorum apply to  all travel.

Queue-cutters and pushers have their  own place in hell.

Economy class is the trickiest. As airlines are packing more seats on planes in coach,  legroom is scarce and your own meal tray  encroaches on your space.

For those lucky enough to work for firms  with fat travel budgets, business class helps attenuate these problems.

Most of these challenges are eliminated if  you fly first class.