Yes, if you always wanted to fly your own plane now you can do so on your computer and for Free !
F-22 Raptor and Cirrus SR 22 are the two planes that are available in this free flight simulator.
You can play Free Flight simulator on Google Earth. You probably already have Google Earth on your machine and if you don’t download it from here, but may be you did not know that you could play games with it. This actually is a hidden feature, or may be some feature which has not be spoken about much.
To get the flight simulator up in Google Earth press Command Option + A (Capital A) or Ctrl + Alt + A if you are on Windows Machine.
A dialog pops up like the one shown below here:
Select the aircraft of your choice. If you are playing for the first time, pick the Cirrus SR 22, as it is easier to handle when compared to the F-22 Raptor. If you select Current view which happens to be one of the option, then your game starts in Air as shown in the image above, else you can start from a particular airport, by selecting the airport of your choice.
You can use either joystick or keyboard / mouse to play this game. You can find the user guide in this page.
Click on Start Flight and start flying.
The beauty of this game is that everything in this game is real, I mean the places and co-ordinates, so you actually fly in real time on all places that are on Google Map.
Happy Flying 
@Ashish – And best part is, it’s free
coooooooooooooooooooool game of the world
i love plans