Heathrow, a global travel hub, says it expects about 82.4 million passengers to travel through the airport this year, despite the possibility of strike-related delays.
Unite the union has said close to 800 workers will leave their posts from midnight on May 7 to the end of May 13 in a major display of industrial action in opposition to outsourcing
Passengers face 'major disruption' as hundreds of Heathrow Airport staff announce week-long strike independent.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from independent.co.uk Daily Mail and Mail on Sunday newspapers.