Perth Airport operator Westralia Airports Corporation has brushed off an announcement by UK-based BAA Plc that it would sell its 15 per cent stake in the company, saying it would be "business as usual" at the airport.

Perth Airport operator Westralia Airports Corporation has brushed off an announcement by UK-based BAA Plc that it would sell its 15 per cent stake in the company, saying it would be "business as usual" at the airport.