Courtney Buses operates a bus from Crowthorne to Windsor Castle every 20 minutes. Tickets cost $4 and the journey takes 19 min. Green Line (operated by First in Berkshire) also services this route every 30 minutes.
How to get from Crowthorne to Windsor Castle
From Crowthorne, High Street (Ye Old Prince - Prince Alfred - Police Station) line 194 bus to Bracknell Bus Station, line 702 bus to Windsor Town Centre, Parish Church (Church Lane), then walk to Windsor Castle. 1 h 29 min £6. From Crowthorne taxi to Windsor Castle. 19 min £57. From Crowthorne drive to Windsor Castle. 19 min £2.