23 episodes
The first season of the American dramedy television series Ugly Betty began airing on September 28, 2006 and concluded on May 17, 2007. In addition to the twenty-three regular episodes in season one, a special, "The Beautiful World of Ugly Betty", was aired on April 12, 2007. Another special, which was a half-hour update recapping the first ten episodes, aired during the month of January 2007 on local ABC affiliates and various cable networks.
See season 1 details18 episodes
The second season of the American dramedy television series Ugly Betty started on September 27, 2007 in the United States and Canada and including a long, mid-season hiatus ran until May 22, 2008. The second part of the season began airing April 24, 2008. Due to the fan base gained in the UK, Channel 4 bought the UK rights to Season 2 so they could begin airing it only a week later than the USA.
See season 2 details24 episodes
The third season of the American dramedy television series Ugly Betty was confirmed in the ABC lineup, which was picked up for a full season on February 11, 2008. The season premiere aired on September 25, 2008 and ended with a special double-episode on May 21, 2009. In Australia, Season 3 premiered on Tuesday, November 3, 2009 at 7:30 pm EDT.
See season 3 details20 episodes
The fourth and final season of the American comedy-drama television series Ugly Betty was confirmed in the ABC lineup, which was picked up for a full season on April 23, 2009. The season premiered on October 16, 2009 and ended with the series finale on April 14, 2010. Outside the United States, Season 4 began airing on digital channel 7TWO on Tuesdays at 7:30pm from April 13, 2010 in Australia.
See season 4 details