Heathrow Express is a high-frequency
airport rail link
An airport rail link is a service providing passenger rail transport
Rail transport (also known as train transport) is a means of transferring passengers and goods on wheeled vehicles running on rails, which are located on tracks. In c ...
between
London Heathrow Airport
Heathrow Airport (), originally called ''London Airport'' until 1966 and now known as London Heathrow , is a major international airport
An international airport is an airport
An airport is an aerodrome
An aerodrome (Commonwe ...
and
London Paddington
Paddington, also known as London Paddington, is a London station group, Central London railway terminus and London Underground station complex, located on Praed Street in the Paddington area. The site has been the London terminus of services prov ...
. It is an
open-access operator
An open-access operator is a train operating company
A train operating company (TOC) is a business operating passenger trains on the railway system of Great Britain under the collective National Rail
National Rail (NR) in the United King ...
, formed in 1998, and is operated by Heathrow Express Operating Company, a wholly owned subsidiary of
Heathrow Airport Holdings
Heathrow Airport Holdings is the United Kingdom-based operator of Heathrow Airport. The company also operated Gatwick Airport
Gatwick Airport (), also known as London Gatwick , is a major international airport near Crawley, West Sussex, ...
.
History
Heathrow Express was planned as a joint venture between
BAA and
British Rail
British Railways (BR), which from 1965 traded as British Rail, was the state-owned company that operated most of the overground rail transport in Great Britain
The railway system in Great Britain is the oldest railway system in the world. T ...
, but was taken over fully by the former following the
privatisation of British Rail
The privatisation of British Rail was the process by which ownership and operation of the railways of Great Britain passed from government control into private hands. Begun in 1994, it had been completed by 1997. The deregulation
Deregulation ...
.
Construction began in 1993. The principal works were two 5-mile single-bore tunnels (including eight escape shafts) and underground stations at and
Terminal 4.
Electrification
Electrification is the process of powering by electricity
Electricity is the set of physical phenomena associated with the presence and motion
Image:Leaving Yongsan Station.jpg, 300px, Motion involves a change in position
In physics, mo ...
of the
Great Western Main Line
The Great Western Main Line (GWML) is a in England that runs westwards from to . It connects to other main lines such as those from and . Opened in 1841, it was the original route of the first which was merged into the in 1948. It is now ...
(GWML) between Paddington and Airport Junction, where the new line diverged from the GWML, was also required. A
flying junction
A flying junction or flyover is a railway junction at which one or more diverging or converging tracks in a multiple-track route cross other tracks on the route by bridge to avoid conflict with other train movements. A more technical term is "gra ...
known as ''Stockley Flyover'' was constructed to connect the tunnel to the GWML fast lines. Beginning in January 1998, an interim service called Heathrow FastTrain ran to a temporary station called
Heathrow Junction, where a coach took passengers the rest of the way.
From 1999 to 2003, a check-in service was provided at Paddington, allowing Heathrow Express passengers to check in and drop off their luggage prior to flights, which was similar to the service currently provided on
Hong Kong
Hong Kong (; , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (HKSAR), is a city
A city is a large human settlement.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Pe ...

Airport Express
The AirPort Express is a Wi-Fi base station product from Apple Inc., part of the AirPort product line. While more compact and in some ways simpler than another Apple Wi-Fi base station, the AirPort Extreme, the Express offers audio output capabi ...
. Checked baggage was transported to the airport by using the luggage space at the westbound first carriage. This service was withdrawn due to low usage and high cost of operation.
In June 2005, Heathrow Express began jointly providing a new
Heathrow Connect
Heathrow Connect was a train service in London provided jointly by Heathrow Express and Great Western Railway (train operating company), Great Western Railway (GWR), between Paddington railway station, Paddington station and Heathrow Airport. T ...
service, which saw a new twice-hourly stopping service on the same route between Paddington and Heathrow using EMUs from the
Siemens Desiro
The Siemens Desiro is a family of Diesel multiple unit, diesel or electric multiple unit passenger trains developed by Siemens Mobility, a division of the German Siemens, Siemens AG conglomerate. The main variants are the Desiro Classic, Desiro ML ...
family. Heathrow Airport Holdings had provided the on-board staff through Heathrow Express as part of the contract. This continued until May 2018, which saw Heathrow Connect absorbed into
TfL Rail
TfL Rail is the Passenger rail franchising in Great Britain#Concessions, concession operating commuter services on two separate railway lines in London and its environs whilst the planned link-up between these lines is being constructed. This w ...
ahead of the new
Crossrail
Crossrail is a railway construction project underway mainly in central London. Its aim is to provide a high-frequency suburban passenger service crossing the capital from west to east, by connecting two major railway lines terminating in Londo ...
project, which will see Crossrail fully operate to Heathrow Airport through this takeover when it opens.
In August 2018,
Great Western Railway
The Great Western Railway (GWR) was a British railway company that linked London
London is the and of and the . It stands on the in south-east England at the head of a down to the , and has been a major settlement for two millenni ...
took over the operation of Heathrow Express as part of a new management contract. Heathrow Airport continues to be responsible for commercial aspects of the service, including marketing, ticket pricing and revenue management, while GWR are now responsible for operations.
Service
Trains depart Paddington every 15 minutes from 05:10 (06:10 on Sunday) until 23:25, and there is a similar quarter-hourly service in the return direction. At Paddington they use dedicated platforms 6 and 7, although on occasions other platforms are used. There are two stops at Heathrow:
Heathrow Central, serving Terminals 2 and 3 (journey time from Paddington 15 minutes); and
Heathrow Terminal 5
Heathrow Terminal 5 is an airport terminal at Heathrow Airport, the main airport serving London
London is the capital city, capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom. The city st ...
(journey time 21 minutes), platforms 3 and 4. Until the opening of Terminal 5 on 27 March 2008, Heathrow Express terminated at
Heathrow Terminal 4
Heathrow Terminal 4 is an airport terminal
Airport Main Terminal
An airport terminal is a building at an airport where passengers transfer between ground transportation and the facilities that allow them to board and disembark from an Fixed ...
. In 2010, Heathrow Express introduced a dedicated shuttle between
Heathrow Central and
Terminal 4 that would be timed to connect with the main Heathrow Express service to/from
Terminal 5 to improve connections between the terminals.
Heathrow Express has been generally well received, not least because steps were taken to reduce the environmental impact, including disguising ventilation shafts as barns. The operator employs 160 staff, who work both in the airport terminals and on board the trains.
Heathrow Express is a premium service costing more than twice that of Transport for London alternatives.
On board

Trains offer a choice of two classes of travel, express class which corresponds to standard class, and "business first" class which corresponds to first class. Both classes have large luggage storage spaces and complimentary WiFi. First class offers wider seats and a table at every seat.
Children under 16 travel free of charge with a fare-paying adult; unaccompanied children may travel free of charge in express class only with proof of a same-day flight to or from Heathrow.
Route
The service runs along
Network Rail
Network Rail Limited is the owner (via its subsidiary Network Rail Infrastructure Limited, which was known as Railtrack plc before 2002) and Railway infrastructure manager, infrastructure manager of most of the railway network in Great Britain. ...

's
Great Western Main Line
The Great Western Main Line (GWML) is a in England that runs westwards from to . It connects to other main lines such as those from and . Opened in 1841, it was the original route of the first which was merged into the in 1948. It is now ...
from Paddington to Airport Junction. The line from Airport Junction to the airport terminals is owned by
Heathrow Airport Holdings
Heathrow Airport Holdings is the United Kingdom-based operator of Heathrow Airport. The company also operated Gatwick Airport
Gatwick Airport (), also known as London Gatwick , is a major international airport near Crawley, West Sussex, ...
but maintained by Network Rail. The line is
electrified
Electrification is the process of powering by electricity
Electricity is the set of physical phenomena associated with the presence and motion
Image:Leaving Yongsan Station.jpg, 300px, Motion involves a change in position
In physics, mot ...
at overhead and uses
Automatic Train Protection#REDIRECT Automatic train protection#REDIRECT Automatic train protection
{{redirect category shell, {{R from other capitalisation{{R from move ...
{{redirect category shell, {{R from other capitalisation{{R from move ...
(ATP) and