2005 | 11 Episodes

Season 0 of American Idol premiered on May 19, 2005.

2002 | 25 Episodes

Season 1 of American Idol premiered on June 11, 2002.

2003 | 39 Episodes

Season 2 of American Idol premiered on January 21, 2003.

2004 | 45 Episodes

Season 3 of American Idol premiered on January 19, 2004.

2005 | 42 Episodes

Season 4 of American Idol premiered on January 18, 2005.

2006 | 41 Episodes

Season 5 of American Idol premiered on January 17, 2006.

2007 | 41 Episodes

Season 6 of American Idol premiered on January 16, 2007.

2008 | 42 Episodes

Season 7 of American Idol premiered on January 15, 2008.

2009 | 40 Episodes

Season 8 of American Idol premiered on January 13, 2009.

2010 | 43 Episodes

Season 9 of American Idol premiered on January 12, 2010.

2011 | 39 Episodes

Season 10 of American Idol premiered on January 19, 2011.

2012 | 40 Episodes

Season 11 of American Idol premiered on January 18, 2012.

2013 | 37 Episodes

Season 12 of American Idol premiered on January 16, 2013.

2014 | 39 Episodes

Season 13 of American Idol premiered on January 15, 2014.

2015 | 30 Episodes

Season 14 of American Idol premiered on January 7, 2015.

2016 | 24 Episodes

Season 15 of American Idol premiered on January 7, 2016.