After his year with Leinster was finished, White joined another Irish province, this time Connacht Rugby. He signed with the team on a three-year contract in February 2012 and joined them ahead of the 2012–13 season. In his first season with the club, White played 16 games in the 2012–13 Pro12, starting 14 of them and scoring one try. He also played five games in that season's Heineken Cup for the province.