Small FlightShort flight
The example (right) shows the plane flying west from North America to Japan, following a great circular path that extends north towards the Arctic.
The elongation of a strand between North America and Japan on a sphere will show why this is really the shorter way despite the outer appearance. Effective flight length is the length of the flight path flying over the floor in real life, usually longer than the perfect great circle and affected by a number of variables such as the need to prevent adverse conditions, winds ahead and ahead, consumption of gas, navigation constraints and other demands.
The example shows eastern trajectories from Japan to North America on a longer, more southern itinerary than the narrower great-sky to take the favorable Jetstream, a rapid, high-altitude tailwind that supports the airplane on its lane and saves more air travel hours and fuels than the geographical closest itinerary.
Flight duration is the amount of flight energy expired, regardless of the timezone in which the flight began and ended. Flight plan times are the differences between the planned arrival and arrival times and are usually different from the real arrival and departure times because they are influenced by different timezones.
Decelerates the amount of energy needed for the flight of the watch to the west or "chasing the sun", while accelerating the amount of energy needed for the flight of the watch to the east. On the other hand, international dateline services, which are approximately 180 C in the Pacific Ocean, deduct 24 hour from the timetable to the east and 24 hour to the west.
Thus, for example, the east flight shown in the example from Japan to North America has a planned arrivals and departures times before the departures, while the flight from North America to Japan takes a whole extra working days around the departures and departures times; the real flight times are the same or similar in both cases.
Flight classifications as long-haul, medium-haul or short-haul are based on the flight duration and not on the planned flight duration.