London Buses route 423

London Buses route 423 is a Transport for London contracted bus route in London, United Kingdom. The service is currently contracted to Transdev London.

History
Route 423 is one of many routes around Hillingdon and Hounslow that are new or have been altered to serve the new Terminal 5 at Heathrow Airport. The section from Hounslow to Hatton Cross, was previously covered by route H23 which was withdrawn on 21/3/08.

Route departing Heathrow Terminal 5

 * Heathrow Terminal 5
 * Heathrow North
 * Harlington Corner
 * Hatton Cross Station
 * Beavers Lane
 * Hounslow Heath
 * Hounslow Treaty Centre
 * Hounslow London Road

Route departing Hounslow

 * Hounslow London Road
 * Hounslow Heath
 * Beavers Lane
 * Hatton Cross Station
 * Harlington Corner
 * Heathrow North
 * Longford
 * Heathrow Terminal 5