On the turn that Fly is selected, the user will fly up high. On the following turn, Fly will inflict damage, PP will be deducted from it, and it will count as the last move used. Once Fly is selected, the user will be unable to switch out unless Fly is disrupted or fully executed.
Full paralysis and self-inflicted damage due to confusion will disrupt Fly. Additionally, if the user is fully paralyzed during the semi-invulnerable turn of Fly, it will not be reset until the user switches out or fully executes Fly.
The user may also be hit in the air if it was previously targeted by Lock-On or Mind Reader.
The user is now unable to avoid moves used by Pokémon with the AbilityNo Guard during the semi-invulnerable turn of Fly, and unable to avoid moves if it has No Guard. It can also be hit with Hurricane.
Outside of battle
Players can fly to locations they have visited. Most possible Fly destinations are places with Pokémon Centers, primarily cities and towns, but other significant locations can be flown to as well. Generally, simply entering a flyable location is all that is required to be able to use Fly for that location.
A 2-turn move that hits on the 2nd turn. Use it to fly to any known town.