“We are disappointed that Unite is to ballot members across its UK airports for strike action.
“During recent discussions with Unite, we proposed a conditional 1.5% pay increase. We believe this to be a reasonable offer at a time when BAA and its airline customers are seeing a decline in passengers due to the impacts of recession and volcanic ash.
“We regret Unite's decision, which will cause unnecessary concern for millions of our passengers and damage Britain's reputation around the world.”