Once you've beaten the first three Gyms, head east from Cerulean City (you'll need a Pokémon with Cut) to Route 9 and follow it to Route 10, where you'll find a Pokémon Center and the entrance to Rock Tunnel. Navigate Rock Tunnel (it is not necessary but highly recommended that you have a Pokémon with Flash) until you reach the other half of Route 10, and then head south to Lavender Town. From there, head west to Route 8 and go through the Underground Path near the Gatehouse to reach Route 7, and then head west to Celadon City. From there, head west to Route 16, and Cut the tree before the Gatehouse, then head west until you reach a small house. The woman inside will give you the HM to teach Fly to any Pokémon that can learn it.
To use fly , its at the left of where you go into Pokemon,then click the Pokemon that kknows it,and its in blue letters
bird Pokemon and they can be found anywhere
you go back to the sky pillar with a Pokemon that knows fly or the hm fly and defeat him as many times as it takes
find a key for the doors in the sloar cave
it's on werens hill level 30
To use the HM Fly, you have to have the Thunder Badge, won from Lt. Surge in Vermilion City.
If I remember correctly, you go to route 16 and a house with a blue roof should be there. Talk to the girl and she gives you hm 02 fly.
Teach a Pokemon fly then go to Raquaza then use the move fly on him.Also have a friend bow to recruit him.
You have to wait till the end of the game and after you beat him you leave . After that you need a Pokemon that knows fly with you to get back.
ya flying Pokemon can fly after learning fly
In solar cave (with key) or wyvern hill (with key)
Teach it to a Pokemon, enter the Pokemon screen, chose the Pokemon that knows fly and select where you want to fly to.