Gert-Jan de Graaff's warning came as the business reported a 25 per cent decrease in people travelling through the airport during the last financial year.
Deloitte made the declaration in a letter sent on Friday, which also confirmed that ‘winning’ bidder Bain has already pumped $125 million into the business.
The Kiwi carrier flew 300 of fruit pickers back to Samoa while the UAE airline operated a special route between Sydney and Bangkok.
The game, released on PC on 18 August, is believed to be the first in history to recreate the entire planet in detail.
Airlines for Australia & New Zealand (A4ANZ), which represents Qantas and Virgin, said the allegations made by Australian Airports Association (AAA) are “misleading and wrong”.
The Northern Territory has opened its borders up to interstate travel – but Victoria and Greater Sydney residents are excluded.