Swiss Railways (SBB/CFF/FFS) operates a train from Crans-Montana to Sierre every 30 minutes. Tickets cost $9 - $17 and the journey takes 20 min. Alternatively, Swiss PostAuto operates a bus from Crans-Montana to Sierre hourly. Tickets cost $7 - $11 and the journey takes 37 min.
How to get from Crans-Montana to Sierre
From Montana Gare funicular to Sierre/Siders SMC. 20 min SFr 15. From Montana, Forum d'Ycoor line 422 bus to Sierre, poste/gare. 37 min SFr 8. From Crans-Montana taxi to Sierre. 18 min SFr 96. From Crans-Montana walk to Sierre. 1 h 34 min.