The S26 runs from Teltow city in the county of Potsdam-Mittelmark via Südkreuz, through the North-South S-Bahn tunnel with a stop at Friedrichstraße via Gesundbrunnen, and ends in Waidmannslust in Reinickendorf (district of Berlin). On weekends the S26 runs Teltow city <> Potsdamer Platz.
Trains on this line run every 20 minutes. This interval is in sections shortened to a 10-minute interval by the S25. There is no night service on this line.
Timetable valid for several months without consideration of construction projects.
The tariff area of the Verkehrsverbund Berlin-Brandenburg (VBB) includes the federal state of Berlin and the state of Brandenburg with its administrative districts and independent cities of Brandenburg, Cottbus, Frankfurt (Oder) and Potsdam.
Berlin and the surrounding regions are divided into fare zones a, b and c gegliedert.
Fare zone Berlin a includes the city center of Berlin, including the S-Bahn-Ring.
Fare zone Berlin b begins outside the S-Bahn ring and reaches to the city limits.
Fare zone Berlin c includes both the outskirts of Berlin and the city of Potsdam.