The S21 is a railway service of RER Fribourg that provides hourly service between Ins and Romont, in the Swiss cantons of Vaud and Freiburg, respectively. Transports publics Fribourgeois operates the service.

S21
Overview
First service	14 December 2014 (2014-12-14)
Current operator(s)	Transports publics Fribourgeois
Route
Termini	Ins Romont
Stops	17
Distance travelled	51.7 kilometres (32.1 mi)
Average journey time	1 hour 22 minutes
Service frequency	Hourly
Line(s) used	Fribourg–Ins line Lausanne–Bern line
Route map Legend S5 S20 to Neuchâtel 32.2 Ins S21 S52 Regional services to Biel/Bienne S5 S52 to Kerzers 27.8 Sugiez S5 S9 to Kerzers 24.2 Muntelier-Löwenberg 22.2 Murten/Morat S5 S9 to Payerne 20.6 Münchenwiler-Courgevaux 16.9 Cressier FR 12.4 Courtepin 9.2 Pensier 5.8 Belfaux-Village S30 to Payerne 4.0 Givisiez S1 to Bern 0.0 66.0 Fribourg S1 S30 62.1 Villars-sur-Glâne 60.4 Matran 57.5 Rosé 55.4 Neyruz 52.4 Cottens 49.6 Chénens 45.0 Villaz-St-Pierre 40.2 Romont S4 S20 S21 S4 to Palézieux Regional services to Bulle [1][2] This diagram: view talk edit

Operations

The S21 runs hourly between Ins and Romont. It uses the western end of the Bern–Neuchâtel line, the entirety of the Fribourg–Ins line, and a portion of the Lausanne–Bern line. It is paired with the S20 between Ins and Fribourg, and between Ins and Romont on weekdays, providing half-hourly service.[3][4]

History

RER Fribourg introduced the S21 designation on 14 December 2014 for a rush-hour service between Fribourg and Kerzers.[5] In December 2017 it was changed to an hourly service on weekdays between Fribourg and Ins, paired with the S20 and together providing half-hourly service.[6] With the December 2021 timetable change, both the S20 and S21 were extended south from Fribourg to Romont, replacing the S40.[7] The S21 began running on weekends with this change, while the S20 operated between Fribourg and Romont on weekdays only.[8]

References

External links

• 2022 timetable: Neuchâtel–Fribourg and Fribourg–Romont