Great Circle Route
The shortest route between two points on the surface of a planet, when routes are limited to the planet's surface, is the arc of the great circle that connects the two points. The shortest route between two points anywhere, without regard to intervening matter or energy preventing the route from being followed, is always the line connecting the two points.
What inner planet has the shortest year
If you mean by the words "direct route" the shortest distance between two places, distances between two places are shortest at the equator, because of the shape of the planet. If you mean which direction should be traveled to minimize distance, the route taken should be as straight a line as possible.
Jupiter in the planet with the shortest rotation time, with a day approximately 12 hours long.
Neptune
Jupiter
Pluto
Mercury is the shortest and Neptune is the longest
its called the somethin belt. between Jupiter and mars
The planet Mercury has the shortest orbit time, because it is the closest to the sun.
places on the planet called jupiter
Mars