But aviation sources in this country say an announcement is imminent which would be a coup for Wellington as it seeks support to extend its runway and for Canberra which is limited to domestic flights and also has growth ambitions.
Other airlines have examined linking the political capitals which would have good support from politicians and government departments.
According to the Australian Financial Review the service would run four times a week.
The airline has a fleet of 27 A330-300s which have 30 business class seats and 255 in economy. Singapore Airlines currently operates 14 round-trip flights from Auckland and Christchurch to Singapore a week.
In January 2015 it launched an alliance with Air New Zealand, with the airlines codesharing services between New Zealand and Singapore.
Malaysian-based low cost carrier AirAsia is due today to announce services to Auckland, via the Gold Coast.
The airline has flown here before but withdrew services to Christchurch when demand dropped after the 2011 earthquakes.