British Airways will have extra staff on duty as it transfers some long-haul flights to Heathrow's Terminal 5, which opened amid chaos two months ago.

Flights were cancelled, bags went astray, lifts did not work, staff struggled to get through security and huge queues built up during the mayhem.

BA will move eight routes from Terminal 4 to T5, including the eight-times-a-day service to JFK Airport in New York.