London Buses route 663 is a Transport for London contracted bus route in London, England. Running between Thornton Heath and Pampisford Road, it is operated by Arriva London.
Route 663 commenced operating on 30 August 2014 between Thornton Heath Station and Pampisford Road Harris Academy via Purley Way - Waddon. The route was initially operated by Arriva London from their Thornton Heath (TH) garage using an Alexander ALX400 bodied DAF DB250LF.
In August 2015, the Alexander ALX400 bodied DAF DB250LF was replaced by an Alexander Dennis Enviro 400.
Route 663 operates via these primary locations:
- Thornton Heath Station
- Thornton Heath Pond
- Waddon Station
- Pampisford Road Harris Academy