Curran signed a three-year contract with Dundee United on 1 June 2018. After a frustrating start to the season, he left United in January 2019, moving across Tannadice Street to join their Dundee derby rivals Dundee. Curran linked up with manager Jim McIntyre, who had previously coached him at Ross County.
Curran inked a three-year pact with Dundee United on June 1, 2018. Following a lackluster beginning to the season, he parted ways with United in January 2019 and crossed town to join their local rivals Dundee. Curran teamed up with manager Jim McIntyre, who had previously mentored him at Ross County.