New Caledonia has extended travel restrictions in and out of the territory because of the Covid-19 pandemic until the end of July.
The restrictions were earlier meant to lapse in late March.
The government said the move was aimed at preventing people from buying airline tickets which might not be honoured.
Flights to and from Wallis and Futuna are exempt as are a limited number of flights to the French mainland via Japan and medical evacuation flights to Sydney.
One-off flights are planned to Vanuatu this month and to French Polynesia next moth.
New Caledonia recorded no local transmission of Covid-19, but 29 cases in managed quarantine, which is compulsory for all arrivals for two weeks.
One hotel in Noumea has been set aside for quarantine against payment for experts and specialists.
With seat capacity limited, the territory's carrier Aircalin announced in August that it would stop accepting bookings until Christmas.