It is an egg move that can be learnt from a bred Murkrow.
Pigeot does not learn sky attack at all.
Gliscor can't learn sky attack
Pidgeot can only learn Sky Attack from a move tutor.
he learns sky attack at level 70
Sky Attack is one of the starter moves of Togekiss,
Lugia learns Sky Attack at level 99.
In Platinum, Level 99.
Lugia learns Sky Power at level 99.It learns sky attack at level 99
level 1 but it deletes it's move to learn another
well if you had a murkrow to start of with it would start off with peck and astonish then learns pursuit level 5, haze level 11, wing attack level 15, night shade level 21, assurance level 25, taunt level 31, faint attack level 35, meanlook level 41, sucker punch level 45, tailwind level 51 but i think that's only in Pokemon black and white, foulplay level 55 but i think that's also only in Pokemon black and white, torment level 61. but if you evolve your murkrow into honchkrow by dusk stone it can can learn most off those moves except murkrow cant learn dark pulse but honchkrow cam at level 75. Also if you go through breeding with a murkrow it can learn sky attack one of the coolest flying type moves ever. I have a honchkrow and it awesome its got skyattack, fly, night slash, and steel wing level 50. hope this helped trainer and good luck on your adventure.
There is only one way . youre Pokemon has to learn it at a certain level . there is no TM for sky attack.