Service areas:

Uxbridge, Hillingdon, Cowley, Harefield, Denham, West Drayton, Ickenham, Iver Heath, Hillingdon, Iver, Richings Park, Thorney, Harmondsworth, Sipson, Yiewsley, Longford, Rickmansworth, Stockley Park, Chorleywood, Hayes, Croxley Green, Harlington, Mill End, Yeading, Northolt, Southall, Norwood Green, Greenford, Perivale, Sarratt, Batchworth, Gerrards Cross, Ruislip, Chalfont St Peter, Maple Cross, Chalfont Common, Horn Hill, Wexham, Farnham Common, Farnham Royal, UB8, UB9, UB10, SL0, UB11, UB7, UB4, UB1, UB2, UB3, UB6, UB5, HA4, SL9