Absolutely not. Altaria is complete and utter garbage. If you want to use a dragon type, which is something worth considering since dragons are broken in this gen, then use Haxrus. Haxorus does everything Altaria does but on a whole new level. Hax learns dragon dance by level up and that shouldn't require an explanation on why that's so good in game. Hydreigon would also be better but it's a pain in the ass to level up especially since it evolves so late
For flying type, just use Crobat. It has a better defensive typing and also has some decent offenses in cross poison. Brave bird is an egg move so I don't think you would bother with that but fly is a decent option in game since the ai very rarely switches
In fact, never use this garbage mon if you're goal is to play a Pokemon game optimally, or at the very least, if you don't want to make the game unnecessarily difficult