Hatton Cross is a London Underground station on the Heathrow branch of the London Underground Piccadilly Line.
It is located next to Heathrow Cargo terminal and close to Heathrow airport in Hatton adjacent to the Great South West Road (A30) on the airport’s Southern Perimeter Road. For the opening of Heathrow airport’s Terminal 4 a single track loop tunnel was constructed between Hatton Cross and Heathrow Central (now “Heathrow Terminals 1, 2, 3″) with the new Terminal 4 station.
This station opened on 12 April 1986 and, from that date, services to the airport operated as a unidirectional loop; running from Hatton Cross to Terminal 4, Terminals 1, 2, 3 and back to Hatton Cross. With the new Terminal 5 station opening on 27 March 2008, every other train arriving at Hatton Cross from London runs via the Heathrow Terminal 4 loop, and terminates at Heathrow Terminals 1, 2, 3. Alternate trains run direct to Heathrow Terminal 5, via Terminals 1, 2, 3