Flygon is a species of Pokémon in the series of the same name. It is a Dragon/Flying type Pokémon.
Main Pokémon games
It is not in the wild in any game, but must be evolved from a Trapinch in Emerald, or Ruby/Sapphire. Or it can also be evolved from Vibrava in Platinum/Dimond/Pearl by using the PokeRadar
It appears in the movie: "Pokemon: Jirachi Wish Maker". In this movie he lets Max and Ash fly on him multiple times to help save Jirachi from Butler, and stop Grodon.
Flygon evolves from Vibrava starting at Level 45. It is a Pokémon that isn't found in the wild.