I don't think that's accurate, if you're willing to allow (perhaps multiple) kick stages. A naive Hohmann calculation will be misleading as you can do a massive

I don't think that's accurate, if you're willing to allow (perhaps multiple) kick stages. A naive Hohmann calculation will be misleading as you can do a massive Oberth burn deep in Earth's gravity well before leaving, and entry will be done aerodynamically (not propulsively).