Mr Zdanius said the family had already made one unsuccessful attempt to organise a medically supervised flight home.
However, his brother took a turn for the worse and wound up back in the hospital.
Yamba man Tom Zdanius suffered a stroke while on holiday in Japan. (Supplied: Lukas Zdanius)
Mr Zdanius said the failed attempt had cost about $30,000.
The family has started a crowdfunding campaign to cover that and other expenses, which Mr Zdanius estimates will eventually exceed $200,000.
“The issue is we need to get the medevac people to take out nine seats of a commercial plane so they can fit a stretcher in,” Mr Zdanius said.
“The only alternative is to get a private jet, which is probably about $300,000.“
A cautionary tale
David Beirman, an adjunct fellow in management and tourism at the University of Technology Sydney, said research showed about 90 per cent of Australians took out insurance before heading overseas.
“I wouldn’t go anywhere without taking out travel insurance, particularly in countries like Japan and the United States, where medical costs are high,” Dr Beirman said.
“I know people often consider it a grudge purchase, and I don’t blame them because travel insurance can be quite expensive.
“But on the other hand, this poor fellow is going through this experience now. Not taking out travel insurance can be a hell of a lot more expensive.“
Dr Beirman, who consults with the Department of Foreign Affairs and Trade (DFAT) on travel advisories and tourism safety, said it would be wise for the family to seek consular assistance.