S2 (ZVV)
The S2 is a railway service of the S-Bahn Zürich on the Zürcher Verkehrsverbund (ZVV) transportation network, and is one of the network's services connecting the canton of Zürich with the cantons of Schwyz, Glarus and St. Gallen. Route. The service links Zurich Airport with Ziegelbrücke, a village and railway junction on the border between the cantons of St. Gallen and Glarus. On weekends, every other train continues to Unterterzen. From the airport, the service runs via Oerlikon and the Weinberg Tunnel to Zürich Hauptbahnhof. From Zürich Hauptbahnhof, the service uses the Lake Zürich left-bank  railway line to Ziegelbrücke, stopping only at selected stations. On its route, the service stops at the following stations: Rolling stock. , all services are operated with RABe 514 class trains. Scheduling. The train frequency is usually 30 minutes and the trip takes 65 minutes between Zürich Flughafen and Ziegelbrücke.