Friday is D-Day for Regional Express' Burnie-Melbourne and King Island flights and the signs are not promising, going by the airline's latest comments.
Rex on Monday warned it would suspend all of its regular passenger services outside of Queenslandfrom April 6 because of a sharp drop in passenger numbers due to coronavirus and travel restrictions imposed to slow its spread.
The airline signalled it might reconsider if a further government assistance package "of sufficient magnitude and viability" could be negotiated by the end of the week.
Early on Friday morning, Rex said it had "not received any concrete proposals from the various levels of governments".
It said it would make an announcement on Friday about shutting down its network.
"The federal, state and local governments all need to act urgently and decisively to determine specific assistance packages so that the airlines can at least provide the bare minimum of essential air services to keep the communities running," Rex deputy chairman John Sharp said.
"For example, Rex carries critical blood supplies daily to regional and remote communities on its network, as well as transporting COVID-19 testing samples from regional centres to capital cities for analysis.
"This may no longer be possible in the foreseeable future.
"Eight other regional airlines have given a 24-hour ultimatum to the federal government saying they only have days before they collapse."
Sharp Airlines, which links King Island and Flinders Island to mainland Tasmania and Melbourne, was one of the eight.
Mr Sharp, a former federal minister for the Nationals, also had some needle for his old party.
"It would be most ironic if the Deputy Prime Minister and Leader of the Nationals (Michael McCormack) should be presiding over the collapse of all these regional carriers under his watch because he could not defend the interests of the regional and rural communities in the Morrison Government," Mr Sharp said.