On 4 November 2005, Miller joined Championship club Leeds United on loan for three months, though this was later extended to the end of the 2005–06 season. He made his debut at Elland Road the next day by starting in a goalless draw with Preston North End. Miller scored one goal during his time at Leeds, the winning goal in the 4–3 away win against Southampton on 19 November, this coming after Leeds had been 3-0 down with 19 minutes remaining. Miller featured in the play-off final on 21 May 2006, in which his team lost 3–0 to Watford and he was substituted after 62 minutes for David Healy. During his time at Elland Road, he had scored one goal in 28 games.