Microsoft Flight Simulator X

Microsoft Flight Simulator X screenshots

Flight Simulator X is the tenth and current version of the flight simulator.
Microsoft Flight Simulator X 9.1 : Amazing graphics

Alternative downloads

PRE-Flight allows super-accurate simulation of all types of aircraft.
Flight Environment X
It provides nearly unlimited environments for you to fly in.
WidevieW 2004
It can be used to create virtual cockpits with panoramic scenery view.