Last week, Qantas CEO Alan Joyce announced the airline would implement a policy barring anyone who has not had the COVID-19 vaccine from using their service.
"We are looking at changing our terms and conditions to say, for international travelers, that we will ask people to have a vaccination before they can get on the aircraft," he said.
This policy has since been backed up by Australian Prime Minister Scott Morrison, who said passengers who didn't take the vaccine before entering Australia would be subject to two weeks quarantine.
Other airlines such as Korean Air have also signaled they will require vaccination, while the industry in general appears to be moving towards a digital 'Common Pass' that will carry details of vaccination status.
However, the backlash has already begun, with one travel agent in the UK announcing a blanket boycott of Qantas over its vaccine policy.