London Buses route SL7, formerly London Buses route X26, is a
Transport for London
Transport for London (TfL) is a local government body responsible for most of the transport network in London, United Kingdom.
TfL is the successor organization of the London Passenger Transport Board, which was established in 1933, and His ...
contracted
Superloop express bus route in
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, England. Running between
West Croydon and
Heathrow Central
Heathrow Terminals 2 & 3 railway station (also known as Heathrow Central) serves Heathrow Terminal 2, Terminal 2 and Heathrow Terminal 3, Terminal 3 (and formerly Heathrow Terminal 1, Terminal 1 before its closure in 2015) at London Heathrow ...
bus stations, it is operated by
Go-Ahead London
Go-Ahead London is a major bus operator in Greater London. The name first appeared in August 2008, before which the company had traded under separate names and brands. It is currently (as of April 2025) the largest bus operator in Greater Londo ...
subsidary
Metrobus Metrobus may refer to:
Transport services Bus Rapid Transit
*MetroBus (Bristol), a bus rapid transit system in Bristol, England, United Kingdom
*Metrobus (Buenos Aires), a bus rapid transit system in Buenos Aires, Argentina
*Metrobus (Istanbul), a ...
.
History

Route X26 has its origins in
Green Line Coaches
Green Line is a long standing commuter coach brand in the Home counties of England. The trademark is owned by Arriva, with services operated by Arriva Herts & Essex.
Green Line had its origin in the network of coach services established by the ...
route 725, which started in the 1950s and ran from
Gravesend
Gravesend is a town in northwest Kent, England, situated 21 miles (35 km) east-southeast of Charing Cross (central London) on the Bank (geography), south bank of the River Thames, opposite Tilbury in Essex. Located in the diocese of Roche ...
and
Dartford
Dartford is the principal town in the Borough of Dartford, Kent, England. It is located south-east of Central London and
is situated adjacent to the London Borough of Bexley to its west. To its north, across the Thames Estuary, is Thurrock in ...
through
Sidcup
Sidcup is an area of south-east London, England, primarily in the London Borough of Bexley. It is south-east of Charing Cross, bordering the London Boroughs of London Borough of Bromley, Bromley and Royal Borough of Greenwich, Greenwich. It was ...
,
Bromley
Bromley is a large town in Greater London, England, within the London Borough of Bromley. It is southeast of Charing Cross, and had an estimated population of 88,000 as of 2023.
Originally part of Kent, Bromley became a market town, charte ...
,
Croydon
Croydon is a large town in South London, England, south of Charing Cross. Part of the London Borough of Croydon, a Districts of England, local government district of Greater London; it is one of the largest commercial districts in Greater Lond ...
,
Sutton
Sutton (''south settlement'' or ''south town'' in Old English) may refer to:
Places
United Kingdom
England
In alphabetical order by county:
* Sutton, Bedfordshire
* Sutton, Berkshire, a List of United Kingdom locations: Stu-Sz#Su, location
* S ...
and
Kingston
Kingston may refer to:
Places
* List of places called Kingston, including the six most populated:
** Kingston, Jamaica
** Kingston upon Hull, England
** City of Kingston, Victoria, Australia
** Kingston, Ontario, Canada
** Kingston upon Thames, ...
to
Staines and
Windsor
Windsor may refer to:
Places
*Detroit–Windsor, Michigan-Ontario, USA-Canada, North America; a cross-border metropolitan region
Australia New South Wales
*Windsor, New South Wales
** Municipality of Windsor, a former local government area Queen ...
. In the late 1970s, route 726 was introduced as a variant, from Gravesend to Windsor via
Heathrow Airport
Heathrow Airport , also colloquially known as London Heathrow Airport and named ''London Airport'' until 1966, is the primary and largest international airport serving London, the capital and most populous city of England and the United Kingdo ...
and
Slough
Slough () is a town in Berkshire, England, in the Thames Valley, west of central London and north-east of Reading, at the intersection of the M4, M40 and M25 motorways. It is part of the historic county of Buckinghamshire. In 2021, the ...
instead of Staines.
By the 1980s, the sections of route between Heathrow and Windsor and between Gravesend and Dartford had been withdrawn. At that time, the Green Line network was operated by
London Country Bus Services
London Country Bus Services was a bus company that operated in South East England from 1970 until 1986, when it was split up and later sold as part of the Bus deregulation in the United Kingdom, bus deregulation programme.
History
From 1933, L ...
, but when that company was broken up in 1986, route 726, which ran almost entirely within Greater London, came under the control of
London Country North West
London Country North West was a bus operator in South East England and London. It was formed from the split of London Country Bus Services in 1986, and operated a fleet of around 360 buses from five garages, with its headquarters located in Gar ...
(LCNW) and
Kentish Bus & Coach. In 1991, LCNW planned to withdraw the route, but
London Regional Transport
London Regional Transport (LRT) was the organisation responsible for most of the public transport network in London, England, between 1984 and 2000. In common with all London transport authorities from 1933 to 2000, the public name and operation ...
stepped in and took the route over. LCNW continued to operate the route on a short term one-year contract. On 29 February 1992,
London Coaches
London Coaches was a former bus and coach operator operating open top tourist services in London and commuter services from Kent to London.
History
London Coaches originated from the London Transport Tours and Charters division. In January 1 ...
, a subsidiary of London Buses privatised in 1992, commenced operating the route using dual-purpose
DAF SB220
The DAF SB220 was a full-size single-decker bus chassis produced by DAF Bus International from 1985. Initially only built in left hand drive, in 1988 a right hand drive version was launched for the United Kingdom market. An articulated vers ...
vehicles.
The contract changed from London Coaches to
Capital Logistics
Capital Logistics was a bus and coach operator in London.
History
Capital Logistics was formed in August 1997 following the merger of Whyte's Airport Services and Capital Coaches the previous April.
It operated a variety of coach and contract ...
in the late 1990s, and passenger numbers continued to decline. In 1997, London Transport attempted to withdraw the service, but at the end of year, it was given an 18-month reprieve after over 1,600 letters had been received in its support.
Early in 1999, the service was cut back to run between Bromley and Heathrow only; the service became hourly, with no early morning or late evening service. Capital Logistics was bought by
Tellings-Golden Miller
Tellings-Golden Miller is a charter coach operator in England. It was a subsidiary of Arriva twice previously, but once again has returned to family ownership. The company is now a subsidiary of Falcon Buses based in Byfleet, Surrey.
History G ...
on 1 June 1999, shortly after a new contract for the 726 had been awarded. New low-floor buses were specified, and seven
Alexander ALX300
The Alexander ALX300 (later known as the TransBus ALX300 and the Alexander Dennis ALX300) was a low-floor bus body manufactured by Alexander and later Alexander Dennis in Falkirk, Scotland. It was launched in 1997 as a replacement for the St ...
bodied
Volvo B10BLE
The Volvo B10BLE is a rear-engined low-entry single-decker bus chassis manufactured by Volvo in Sweden between 1993 and 2004. The first prototypes were built in 1992, but mass production started in 1993, only a year after the high-floor B10B. I ...
s were purchased.
[
In April 2005, route 726 was renumbered X26 and the section between Bromley and ]East Croydon
East Croydon is a railway station, tram stop and associated bus station in Croydon, Greater London, England. It is located in Travelcard Zone 5. At from , it is the 20th List of busiest railway stations in Great Britain, busiest station in Bri ...
was withdrawn, rerouted to run via Teddington
Teddington is an affluent suburb of London in the London Borough of Richmond upon Thames. Historically an Civil parish#ancient parishes, ancient parish in the county of Middlesex and situated close to the border with Surrey, the district became ...
instead of Hampton Court
Hampton Court Palace is a Listed building, Grade I listed royal palace in the London Borough of Richmond upon Thames, southwest and upstream of central London on the River Thames. Opened to the public, the palace is managed by Historic Royal ...
, and many stops were removed to reduce run times and improve reliability. The contract was awarded to Metrobus Metrobus may refer to:
Transport services Bus Rapid Transit
*MetroBus (Bristol), a bus rapid transit system in Bristol, England, United Kingdom
*Metrobus (Buenos Aires), a bus rapid transit system in Buenos Aires, Argentina
*Metrobus (Istanbul), a ...
, which used Scania OmniCity
The Scania OmniCity is an integrally constructed Transverse engine, vertically-engined Low-floor bus, low floor city bus that was available from Scania AB, Scania on the European market between 1996 (across Europe)/1997 and 2012.
The OmniCity ...
vehicles. London Buses hoped that the re-modelled route would attract more passengers and therefore specified large single-deck buses. It was initially intended to remove stops at Carshalton
Carshalton ( ) is a town, with a historic village centre, in south London, England, within the London Borough of Sutton. It is situated around southwest of Charing Cross and around east by north of Sutton town centre, in the valley of the Rive ...
, Cheam
Cheam () is a suburb of London, England, southwest of Charing Cross. It is divided into North Cheam, Cheam Village and South Cheam. Cheam Village contains the listed buildings Lumley Chapel and the 16th-century Whitehall. It is adjacent to t ...
, North Cheam
Cheam () is a suburb of London, England, southwest of Charing Cross. It is divided into North Cheam, Cheam Village and South Cheam. Cheam Village contains the listed buildings Lumley Chapel and the 16th-century Whitehall. It is adjacent to t ...
and Worcester Park
Worcester Park is a suburban town in South London, England. It lies in the London boroughs of Sutton and Kingston, and partly in the Surrey borough of Epsom and Ewell. The area is southwest of Charing Cross. The suburb's population was 16,031 ...
, but these were retained. The peak vehicle requirement (PVR) fell from six buses to four.[
On 22 November 2008, route X26 was doubled in frequency to every 30 minutes for most of the day, including Sundays, although the evening service remained hourly. To cover for the increase in PVR while new vehicles were prepared, Metrobus hired ]Mercedes-Benz O530 Citaro
The Mercedes-Benz Citaro is a single-decker, rigid or articulated bus manufactured by Mercedes-Benz/ EvoBus. Introduced in 1997, the Citaro is available in a range of configurations, and is in widespread use throughout Europe and parts of Asia, ...
s from Wealden PSV, delivered directly from original owner Quality Line
Quality Line was a bus company based in Epsom, England. A subsidiary of the RATP Group, Quality Line operated bus services throughout the South West London and Surrey area, with many under contract to Transport for London. It ceased operations ...
. The Citaros were returned to Wealden PSV and replaced with Scania OmniCitys from the Crawley Fastway
Fastway is a bus rapid transit network in Surrey and West Sussex, United Kingdom, linking Crawley with Gatwick Airport and Horley, the first to be constructed outside a major city. It uses specially adapted buses that can either be steered by th ...
network, refurbished and painted red; these were two years older than the OmniCitys that previously worked on the route.
In June 2010, a proposal to reintroduce the former 726 stop at Beddington
Beddington is a suburban settlement in the London Borough of Sutton on the boundary with the London Borough of Croydon. Beddington is formed from a village of the same name which until early the 20th century still included land which became ...
was rejected by Transport for London, despite support from many residents. Upon being re-tendered, on 14 April 2012, the route passed to Quality Line
Quality Line was a bus company based in Epsom, England. A subsidiary of the RATP Group, Quality Line operated bus services throughout the South West London and Surrey area, with many under contract to Transport for London. It ceased operations ...
with new Mercedes-Benz O530s.
When next tendered, it passed to London General
London General Transport Services Limited, trading as Go-Ahead London, is a bus company operating in Greater London. The London General brand is a subsidiary of Go-Ahead London and operates services under contract to Transport for London. The ...
on 15 April 2017. Double deck Wright Eclipse Gemini 2
The Wright Eclipse Gemini is a low-floor double-decker bus body that was built by Wrightbus between 2001 and 2021, based on the single-decker Wright Eclipse design. The second-generation Eclipse Gemini 2 was launched in 2009, followed by th ...
bodied Volvo B9TL
The Volvo B9TL is a low-floor double-decker bus built by Volvo Buses, Volvo from 2002 until 2018. It superseded the Volvo Super Olympian and the Volvo B7TL. The 2-axle version has been superseded by the Volvo B5TL in 2014 and the 3-axle version ...
buses that formerly operated East London Transit
East London Transit (ELT) is a part-segregated Bus Rapid Transit in London, England, operated as part of the London Buses network. The East London Transit opened in phases between 2010 and 2013. The scheme for this system was developed by Tra ...
services were introduced after having their rear doors removed and additional luggage racks fitted.
On 19 August 2023, route X26 was renumbered SL7, becoming part of the Superloop network of orbital express bus routes. The frequency was also increased to every 8–20 minutes. Extra Wright-bodied Volvo B9TLs displaced from route 101 were transferred to Croydon garage to bolster the fleet. These were fitted with luggage racks, but unlike the existing buses, retained their rear doors.
With a length of 23.75 miles, it is the longest bus route in London.
Current route
Route SL7 operates via these primary locations:Route SL7 Map
Transport for London
*West Croydon bus station
West Croydon is a multi-modal interchange station located in Croydon, South London. It is a southern terminus of the Windrush line of the London Overground, and is also served by National Rail services operated by Southern. The station also i ...
*East Croydon station
East Croydon is a railway station, tram stop and associated bus station in Croydon, Greater London, England. It is located in Travelcard Zone 5. At from , it is the 20th busiest station in Britain, was the 10th busiest in 2020–21 (due to th ...
* Wallington
*Carshalton
Carshalton ( ) is a town, with a historic village centre, in south London, England, within the London Borough of Sutton. It is situated around southwest of Charing Cross and around east by north of Sutton town centre, in the valley of the Rive ...
* Sutton station
*Cheam
Cheam () is a suburb of London, England, southwest of Charing Cross. It is divided into North Cheam, Cheam Village and South Cheam. Cheam Village contains the listed buildings Lumley Chapel and the 16th-century Whitehall. It is adjacent to t ...
*North Cheam
Cheam () is a suburb of London, England, southwest of Charing Cross. It is divided into North Cheam, Cheam Village and South Cheam. Cheam Village contains the listed buildings Lumley Chapel and the 16th-century Whitehall. It is adjacent to t ...
* Worcester Park station
*New Malden
New Malden is a suburban area in southwest London, England. It is within the Royal Borough of Kingston upon Thames and the London Borough of Merton, and is from Charing Cross. Neighbouring localities include Kingston upon Thames, Kingston, Norb ...
* Cromwell Road bus station
*Kingston upon Thames
Kingston upon Thames, colloquially known as Kingston, is a town in the Royal Borough of Kingston upon Thames, south-west London, England. It is situated on the River Thames, south-west of Charing Cross. It is an ancient market town, notable as ...
*Teddington
Teddington is an affluent suburb of London in the London Borough of Richmond upon Thames. Historically an Civil parish#ancient parishes, ancient parish in the county of Middlesex and situated close to the border with Surrey, the district became ...
* Hatton Cross station
*Heathrow Central bus station
Heathrow Central bus station is a large bus station that serves terminals 2 and 3 of Heathrow Airport, in London, England. It provides urban bus and long-distance coach services to destinations in London and to regional destinations across ...
References
External links
*
{{DEFAULTSORT:SL7
Bus routes in London
Buses serving Heathrow Airport
Green Line Coaches routes
Transport in the London Borough of Croydon
Transport in the London Borough of Hillingdon
Transport in the London Borough of Richmond upon Thames
Transport in the London Borough of Sutton
Transport in the Royal Borough of Kingston upon Thames
London Superloop