London Buses operates a bus from Orpington to Westerham every 10 minutes. Tickets cost $3 and the journey takes 19 min. Arriva UK also services this route every 10 minutes.
How to get from Orpington to Westerham
From Orpington, High Street Orpington War Memorial line 353 bus to Hayes (Kent) then line 246 bus to Westerham, The Green (War Memorial). 52 min £6. From Orpington taxi to Westerham. 15 min £39. From Orpington drive to Westerham. 15 min £1.