Amtrak operates a train from Redding to Mount Shasta once daily. Tickets cost $25 - $50 and the journey takes 1 h 50 min. Alternatively, Greyhound USA operates a bus from Redding to Mount Shasta once daily. Tickets cost $13 - $30 and the journey takes 1 h 39 min. Siskiyou Transit also services this route hourly.
From Redding Amtrak train to Dunsmuir Amtrak then taxi to Mount Shasta. 2 h $71. From Redding bus to Across from Greyhound(mail boxes) then bus to E Alma West of RR tracks near USFS. 2 h 19 min $25. From Redding drive to Mount Shasta. 1 h 4 min $7.