As of December 2015, there is no live air traffic control feed for London Heathrow airport (LHR). Listening to live air traffic control feeds is prohibited under U.K. law, unless the transmission is intended specifically for you or for a general audience (for example, an announcement broadcast to the public).
A live feed of air traffic radars can be found on the airport's website, www.heathrow-london.co.uk/airport/live-air-traffic-radar. The website shows aircraft and flight information for planes departing from or arriving at London Heathrow.
London Heathrow airport is a major international airport located in London, England. In 2014, 73.4 million passengers arrived or departed from LHR on over 450,000 flights. The most popular destinations from LHR include New York (JFK), Dubai, Dublin, Hong Kong and Frankfurt.