Hopefully, your not serious about the first part of your post.
Obviously, its harder to hit a flying target that it is a grounded one simply because its flying.
Kakashi even told naruto when he was chasing deidara, that he had no chance against him. This is because naruto was primarily a close range fighter and he had a VERY limited arsenal at that time.
Now obviously current, or even kcm/bm mode naruto would likely own deidara due to his much improved arsenal.
Of course i'm serious :|
Give me one example of a flying character who got a clean victory simply because he could fly. Its just as hard as hitting an opponent on the ground. It still depends on the opponent's speed/skill and we both know who rules in this area.
Well, good thing for Minato that he's many times superior to that Naruto :bouncy: