Based upon the Wikipedia page [1] The following stations are within Travelcard Zone 4: * Abbey Wood Station * Alperton Station * Angel Road Station * Anerley Station * Arnos Grove Station * Barking Station * Barkingside Station * Beckenham Hill Station * Beckenham Junction Station * Boston Manor Station * Bounds Green Station Also in Travelcard Zone 3 * Bowes Park Station Also in Travelcard Zone 3 * Brentford Station * Bromley North Station * Burnt Oak Station * Castle Bar Park Station * Chigwell Station Outside Greater London but included in this zone * Chiswick Station * Clock House Station * Colindale Station * Crystal Palace Station London Overground Also in Travelcard Zone 3 * Drayton Green Station