A rail extension to Flinders Medical Centre had been mooted in July 2008, with the State Government commissioning a feasibility study, but nothing eventuated.

[1] In May 2016, as part of the Liberal Party's campaign for the federal election later that year, $43 million in funding was promised towards extending the Tonsley line.

[2] The extension, known as the Flinders Link Project, was built concurrently with the adjacent Darlington Upgrade on the Southern Expressway and is located to the east of the expressway and local service roads; a rail overpass and pedestrian bridge connects the existing rail corridor and the new station.

[3][4] Major works commenced in July 2019 and the extension opened on 29 December 2020.

Trains are scheduled every 30 minutes, with additional services in the morning and evening peak on weekdays.