Campbell was sent out on loan again in the 2007–08 season, this time at Hull City in the Championship. He initially joined Hull in October 2007 on loan until January 2008, and scored twice on his home debut in a 3–0 victory over Barnsley. Following his match-winning display against Wolverhampton Wanderers on Boxing Day 2007, in which he scored one goal and assisted another, Hull expressed their interest in extending Campbell's loan until the end of the season. The loan extension was completed on 28 December 2007.