Konstanz station is served by the Upper Rhine Railway running west to Singen with connections to all parts of Germany, and the Etzwilen�Konstanz line running south into Switzerland, connecting to major routes at Weinfelden. Services are provided by the Deutsche Bahn AG and also the Swiss Thurbo company and its German subsidiary. The nearest airport is at Friedrichshafen, which can be reached by a fast ferry service on the lake, which also connects Konstanz to other lakeside towns. The airport mainly hosts domestic flights, but flights to Austria and Turkey are available. The nearest international airports are in Stuttgart, in Basel, and Zurich, which has a direct train from Konstanz. Bus services within the city are provided by Stadtwerke Konstanz GmbH.
Additionally Konstanz and Friedrichshafen have been connected by the two (since 2008, three) catamarans Constance and Fridolin since 2005
