Originally Posted by
GinFizz
I am not sure I follow your exact point here do you mean that a Super Sparpreis ticket doesn't cover the Skytrain and/or routing via Dus Hbf, but that the Sparpreis does?
Yes. The regular Sparpreis includes something called +City which the "Super Sparpreis" does not. With +City, you may use all public transport in close proximity to your departure (or destination) station. If you chose "Duesseldorf Hbf" as your departure station, the area in which you may use all public transport for free includes DUS Airport. Therefore, both the ride on the Sky Train as well as the ride on a regional train between DUS Airport station and Duesseldorf Hbf would be free-of-charge.