The New Caledonian government has approved a strategic aviation plan which is expected to lead to the closure of Noumea's domestic airport in Magenta.
The plan provides for a realignment of air traffic management to be concentrated in Tontouta, which is the international airport about 40 kilometres to the north of the city.
The proposed shift of Air Caledonie flights to Tontouta is also linked to a road project, which would entail extending the road from Noumea to a four-lane highway.
The project is yet to be debated by the Congress, which is due to be re-elected in May.