We recommend travelling by public transport (Stadtbahn U6). Between September 09 to September 27, there is a rail replacement service for the S-Bahn in place. Please plan your trip under vvs.de
At Stuttgart Airport there is a station of the regional bike rental system Regiorad Stuttgart. This is located directly next to the Stuttgart Airport Busterminal SAB. Three bicycles and two pedelecs are available. The borrowed bikes can be returned at all Regiorad stations in the region. In the immediate vicinity of the airport there are numerous pick-up points, e.g. in Leinfelden-Echterdingen, Filderstadt, Wolfschlugen and Ostfildern.
Regiorad Stuttgart (in German)