|Start||Hounslow bus station|
The 1980s saw the introduction by London Regional Transport of route tenders, with route 81 the first route to be put out to tender. The contract for the route was awarded to Len Wright Travel, which later became London Buslines, and passed to them from London Buses on 13 July 1985.
Tendering saw the route move from Hounslow garage to Lampton (later Isleworth, then Southall) and revert to double deck, using yellow Daimler Fleetlines. These were replaced in 1987 by Leyland Lynxes. On 29 July 1995 the route was lost to Westlink and moved to Hounslow Heath garage using Optare Deltas. Westlink became part of London United Busways in September 1995. In July 2019, Metroline gained the contract for the route.
Route 81 operates via these primary locations:
- Hounslow High Street, School Road
- Hounslow West station
- Harlington Corner
- Heathrow Airport North
- Colnbrook High Street
- Langley London Road
- Slough bus station for Slough station
- McLachlan, Tom (1995). London Buses 1985–1995: Managing The Change. Venture Publications. p. 27. ISBN 1-898432-74-0.
- Wolmar, Christian (14 September 1992). "Hold tight on the Clapham omnibus: Next stop, privatisation". The Independent.
- McLachlan p.84
- McLachlan p.109
- Development of Organised Transportation in London Transport for London January 2013
- Route 81 Map Transport for London