The Department of Infrastructure, Transport, Cities and Regional Development says Virgin Australia is reasonably capable of flying to Tokyo from March 2020.
"The Victorian government has written to Australia's International Air Services Commission supporting the Qantas application for two slots to Tokyo Haneda.
Australia's International Air Services Commission has rejected a proposed codeshare between Cathay Pacific and Qantas on the Australia-Hong Kong route
Qantas says the proposed codeshare with Cathay Pacific could go ahead subject to a period of review to determine if any "hypothetical concerns" eventuated.
Cathay Pacific says a proposed codeshare agreement with Qantas would encourage more tourists to visit Australia and benefit the national economy.
Qantas will seek to reverse a draft ruling from Australia regulators denying the airline approval to allow Cathay Pacific to codeshare on flight between Australia and Hong Kong.