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
- Barking Riverside 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
- East Ham Station Also in Travelcard Zone 3
- Edmonton Green Station
- Elmers End Station
- Elmstead Woods Station
- Eltham Station
- Fairlop Station
- Falconwood Station
- Finchley Central Station
- Gants Hill Station
- Goodmayes Station
- Grange Hill Station
- Greenford Station
- Grove Park Station
- Hackbridge Station
- Hainault Station
- Hanwell Station
- Hendon Station Also in Travelcard Zone 3
- Hendon Central Station Also in Travelcard Zone 3
- Highams Park Station
- Hounslow Central Station
- Hounslow East Station
- Ilford Station
- Isleworth Station
- Kent House Station
- Kenton Station
- Kew Bridge Station
- Kew Gardens Station Also inTravelcard Zone 3
- Kingsbury Station
- Leytonstone Station Also in Travelcard Zone 3
- Lower Sydenham Station
- Malden Manor Station
- Manor Park Station Also in Travelcard Zone 3
- Mill Hill Broadway Station
- Meridian Water Station
- Mill Hill Broadway Station
- Mill Hill East Station
- Mitcham Junction Station
- Morden Station
- Morden South Station
- Motspur Park Station
- Mottingham Station
- New Beckenham Station
- New Eltham Station
- New Malden Station
- New Southgate Station
- Newbury Park Station
- North Wembley Station
- Northwick Park Station
- Norwood Junction Station London Overground
- Oakleigh Park Station
- Osterley Station
- Palmers Green Station
- Penge East Station
- Penge West Station London Overground
- Perivale Station
- Plumstead Station
- Preston Road Station
- Queensbury Station
- Ravensbourne Station
- Raynes Park Station
- Redbridge Station
- Richmond Station
- Roding Valley Station
- Selhurst Station
- Seven Kings Station
- Shortlands Station
- Silver Street Station
- Snaresbrook Station
- South Greenford Station
- South Kenton Station
- South Merton Station
- South Wimbledon Station Also in Travelcard Zone 3
- South Woodford Station
- Southall Station
- Southgate Station
- Sudbury & Harrow Road Station
- Sudbury Hill Station
- Sudbury Hill Harrow Station
- Sudbury Town Station
- Sundridge Park Station
- Sutton Common Station
- St. Helier Station
- St Margarets Station
- Syon Lane Station
- Thornton Heath Station
- Totteridge and Whetstone Station
- Upney Station
- Wanstead Station
- Welling Station
- Wembley Central Station
- Wembley Park Station
- Wembley Stadium Station
- West Finchley Station
- Winchmore Hill Station
- Wood Street Station
- Woodford Station
- Woodgrange Park Station London Overground Also in Travelcard Zone 3
- Woodside Park Station
- Woolwich Station
- Woolwich Arsenal Station
- Worcester Park Station