Mine! 
[ADDON RELEASE] LetsFly - Flight Planning Utility
It’s a flight planner for the times you ask yourself; Where should I fly today?
I primarily made it for myself but thought others might find it handy as well. I seemed to get stuck doing the same routes all the way back to FSX. Using this I have explored a lot more areas, which is really cool with this amazing scenery.
LetsFly is a simple utility for creating interesting random flight plans using user-defined search parameters. Explore new areas, find a flight within a user defined range, find the shortest grass runway in a location to test your skills. Easily save your favorite flight plans, or get detailed information about the airport including weather.