From Buckingham Palace walk to London Victoria, train to Clapham Junction, train to Windsor & Eton Riverside, then walk to Windsor Castle. 1 h 26 min £11. From Buckingham Palace walk to Victoria, bus to Windsor Town Centre, Theatre Royal (River Street), then walk to Windsor Castle. 1 h 46 min £7. From Buckingham Palace taxi to Windsor Castle. 33 min £96. From Buckingham Palace drive to Windsor Castle. 33 min £4.
Bus or train from Buckingham Palace to Windsor Castle?
Southern operates a train from Buckingham Palace to Windsor Castle every 10 minutes. Tickets cost $1 - $3 and the journey takes 5 min. South Western Railway also services this route hourly. Alternatively, Green Line (operated by First in Berkshire) operates a bus from Buckingham Palace to Windsor Castle hourly. Tickets cost $10 and the journey takes 1 h 28 min.