Passengers travelling through all four of the current operational terminals at Heathrow will be able to access complimentary WiFi provided by the airport operator from Saturday 1 June 2014.
Access to the complimentary service is limited to 45 minutes a day. However, members of the Heathrow Rewards loyalty programme, formerly known as BAA Worldpoints, will be able to access the service for 90 minutes a day.
Registration for Heathrow Rewards is free and is clearly worth it just for the free WiFi.