Air Chathams is deep in negotiations about taking over the Kapiti Coast to Auckland air service.
The family owned business is keen to take over the route after Air New Zealand's shock axing of the service which takes place early next month.
A rally at Kapiti Coast Airport on Sunday to show support for the service, which about 200 people attended, Air Chathams general manager Duane Emery said the airline was "still working through some important factors to ensure that when we make that decision, we can live up to our regional reputation and offer the service that this region deserves.
"As part of that process we are working very closely with Air New Zealand and to secure agreements in principle to ensure that our airline is in a strong position to continue to succeed here.
"Air NZ recognise the notice period given here was unacceptable and will offer more to support the airline that continues the Kapiti to Auckland service.