Mannone returned to Hull City on 4 January 2012, signing on loan until the end of the season. His first game back at the KC Stadium was an FA Cup Third round match against Ipswich Town, with Hull City winning 3–1. His first league game was a 1–0 away win over Reading. He then played in the FA Cup Fourth round match against Crawley which ended in a surprise 0–1 defeat for Hull, during which he was announced Man of the Match. He then kept a clean sheet over Doncaster in a goalless draw at the KC Stadium on 31 January.