Originally Posted by
The Drunkard Kid
It might even be slower than that depending on whether Snake Way's length is being measured from head to tail or along the actual path, since he traveled in a straight line via flight whereas Snake Way is a winding road.
On the other hand, it really can't be emphasized enough that this was done at a marathon pace that he kept up for at least 24 hours and using their full speed has been shown to drain them extremely quickly. Heck, Piccolo was reduced to heavy panting after a split second of full out running away from Form 3 Frieza, and he covered less than .001% of the distance Goku did on Snake Way, while simultaneously being 100+ times more powerful in terms of power level (and the Nappa/Vegeta battles show that even a 30% difference is the point where your opponent is pretty much a statue and you can cover massive amounts of distance faster than they can even throw a punch).