Almost 2.5 million passengers passed through Queenstown Airport in the year ending June 2019.
But, with no international flights for the foreseeable future and reduced domestic travel, chief executive Colin Keel said he expected ''only a fraction" of the pre-Covid-19 traffic over the next 12 to 18 months.
"We have made the difficult decision to propose a restructure of our organisation.
"Consultation with our team will begin this week and be completed by the end of June."
Keel revealed some contracted staff at the corporation had already been let go or taken voluntary salary reductions and the new consultation was focused on permanent staff.
"The Southern Lakes region has been significantly impacted by Covid-19 and bringing back domestic air travel to the area is a welcome step forward to recovery.''
Queenstown Airport Corporation has received $478,012.80 so far in government wage subsidies for 68 employees.
Clutha-Southland MP Hamish Walker said job losses were "heartbreaking" but he knew Keel was trying to "save as many jobs as possible".
"The reality of the situation is we have a Government who have not given businesses in Queenstown an idea of a timeframe for opening the border to Australia."
Walker said the Australian market was critical to the resort and although Australian Prime Minister Scott Morrison had suggested a transtasman bubble would be in place by July, the Government had given no such date.
Queenstown Airport Corporation said it would not give a figure for the number of jobs under threat or provide further comment. The focus was on "supporting our people".
Any jobs affected would be part of the operations and corporate team, not Customs, security or retail, which are run by separate agencies.
At Dunedin International Airport Ltd staff were being paid 80 per cent of their pre-lockdown wages and the company said it was working on what "post-lockdown" would look like.
General manager of business development Megan Crawford would not say if the company was considering redundancies and said until staff were aware of any proposed changes, she would not comment further.
Invercargill Airport could not be reached for comment.
matthew.mckew@odt.co.nz