Ooooohhh, right sorry. I forgot about that, I thought dragon-type pokemon counted as flying cause some of them got wings and everything but then like you said, if they have wings they're dragon/flying.
Well, have you seen Shaymin's flying form? Its on the ground with its all four but its ears makes it being able to fly. The same would probably go for Sylveon's bows since they will probably be able to somehow make Sylveon being able to fly or its just a dragon-type, who knows.