A plan to build a tram link to Adelaide Airport has won the support of South Australia's peak business body.

But Business SA has urged the state government consider potential tram infrastructure now, to ensure it does not interfere with future upgrades to the North-South road corridor.

In a submission to the Productivity Commission’s inquiry into the economic regulation of airports, Adelaide Airport Limited said it had kept land available for the project.

It also said it would also be willing to fund a station located at the site.

“AAL would construct and maintain a tram station to ensure that the passenger journey is seamless and easy,” it said.

Business SA executive director Anthony Penney welcomed the plan, and said the link would provide quick and easy transport from the airport to the CBD.

He urged the government to consider the plan “a medium-term priority” and – at a minimum – that it make provisions to facilitate tram access across the North-South corridor.

“Starting the planning process early would also ensure that the groundwork to create an optimal tram route could be completed and ready to go if and when the funding becomes available,” Mr Penney said.

An airport tram was not included as a priority of the new Liberal government and did not feature in the state budget, but the plan has not been ruled out entirely.

The Downer Group last year lodged a bid with the former government to build, fund and operate the six-kilometre line, but Labor did not proceed with the proposal.