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The services under review are provided at Hawke's Bay, Gisborne, New Plymouth, Rotorua and Invercargill Airport, as well as the airfield flight information services provided at Kapiti Coast Airport and Milford Sound Piopiotahi Aerodrome.
Discussions with the airports, airlines and staff are under way.
Airways confirmed the changes would not affect the ability to safely fly to these airports.
Chief executive officer Graeme Sumner said air traffic had been low at those locations even before the Covid-19 pandemic.
"It is simply not viable to continue the same level of service at locations where there are no passenger flights," he said.
"It's an unfortunate and stark reality, but our focus now needs to be on supporting the long-term recovery of New Zealand's aviation industry by ensuring our services are affordable and match the reality of the aviation sector now and into the future."
Forecasts indicate the national-wide network will only recover up to 60% over the next two years with expectations that border restrictions would stay in place for some time.
Airways expects 180 staff to be made redundant as the sole provider of air traffic services cut its cost base by 30%.
"We now need to consider operating different services at these airports or that they operate as uncontrolled airspace in the same way as other uncontrolled aerodromes in New Zealand that have no Airways service - including Kerikeri, Taupo, Whangarei and Timaru airports," Sumner said.
Airways will begin consulting with unions next week.
Meanwhile, commercial pilots are fearful some of New Zealand's air safety will be downgraded to the level of a developing country.
New Zealand Air Line Pilots' Association president Captain Andrew Ridling said the decision was reckless and an ill-informed approach that puts money ahead of travellers' safety.