Qantas has bought a 19.9 per cent stake in Alliance Aviation Services and signalled its intention to increase that shareholding over time.

Qantas will send its Boeing 717s to Singapore for their heavy maintenance checks after concluding keeping the work in Canberra was not sustainable.

Virgin Australia says it has significant concerns with a proposed codeshare deal between Cathay Pacific and Qantas on Australia-Hong Kong routes.

Qantas will return to Fiji for the first time in nearly two decades when it begins nonstop flights between Sydney and Nadi from March 31 2019.