Schelklingen is a small regional railway junction. At this place the Ulm-Sigmaringen railway meets the Swabian Alb Railway which comes from Kleinengstingen over Münsingen to Schelklingen. While traffic on the Swabian Alb Railway is quite low, departures and arrivals are frequent on the Ulm-Sigmaringen railway. Schelklingen is a stop for both Regional-Express and Regionalbahn (stopping) trains. Therefore, at least two trains per hour leave for Ulm. In the opposite direction for Sigmaringen, a train leaves every hour; and trains leave every two hours for the much more remote town of Titisee-Neustadt. Every hour, via Ulm station, regional trains leave for Memmingen. Schelklingen is a member of the Donau-Iller regional transport association Donau-Iller-Nahverkehrsverbund.