Line S3 (Milan suburban railway service)

Saronno–Milano Cadorna
Overview
Service typeCommuter rail
SystemMilan suburban railway service
StatusOperational
LocaleMilan, Italy
First service2004
Current operator(s)Trenord
WebsiteTrenord (in Italian)
Route
TerminiSaronno
Milano Cadorna
Stops13
Distance travelled21 km (13 mi)
Technical
Track gauge1,435 mm (4 ft 8+12 in)
Electrification3,000 V DC
Timetable number(s)S3
Route map

The S3 is a commuter rail route forming part of the Milan suburban railway service (Italian: Servizio ferroviario suburbano di Milano), which converges on the city of Milan, Italy.

The service runs over the Milan–Saronno railway, the oldest line owned by the Ferrovie Nord Milano. Like all other Milan suburban railway service routes, it is operated by Trenord.