Earlier this week QANTAS chief executive Alan Joyce said the company was looking to change its terms and conditions to include a 'non-negotiable' vaccine requirement for international travel.

The airline has not decided if a similar policy will be introduce for interstate travel.

"Whether you'll need that domestically, we'll have to see for COVID-19 and the market," he said. "But certainly for international visitors coming out, people leaving the country, we think that's a necessity."

Virgin Australia said it would consider whether to implement similar standards when international travel resumes.

Federal health minister Greg Hunt said vaccines against COVID-19 should be available in March and would be free and voluntary.

Government estimates suggest less than 60 per cent of Australians will voluntarily opt for vaccinations.

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Government and opposition MPs both said the Qantas decision was up to the airline.

Regional Express, which runs flights connecting Wagga and other Riverina centres such as Albury, Griffith and Narrandera to major Australian cities and other regional areas, has not made a decision on whether it will implement a no jab, no fly policy.

A spokesman for the company said when a vaccine is widely available, the airline would consider its position.

"Rex was the first airline to require temperature testing for all passengers at check-in prior to boarding the aircraft and we were the first airline to make wearing a mask compulsory for passengers whilst on the flight," he said.

"Rex will continue its track record of adopting the most appropriate methods to protect passengers health whilst travelling on our planes.

"We will certainly consider the effect vaccinations have on eligibility to fly on domestic flights when the vaccine is widely available."

- with Canberra Times