Heathrow Airport will open its new Terminal 2 in less than a years time. The £2.5 billion facility will eventually serve 20 million passengers each year after opening its doors on June 4, 2014.

The first aircraft, a United Airlines flight from Chicago, is scheduled to land at 0555. Prior to the opening next June there will be six months of testing involving 14,000 people in 182 trials.

Terminal 2 will be home to 25,000 staff and 23 Star Alliance airlines, as well as Aer Lingus, Virgin Atlantic Little Red and Germanwings. It will open in phases, with the 26 airlines moving in over a period of six months. Just 10 per cent of flights will operate for the first three weeks of June before gradually building up to full operations.