Dionte Christmas is expected in Athens in the next few hours to agree terms with AEK B.C.
Dionte Christmas was born in Philadelphia of USA and started to play basketball in Samuel Fels High School. He graduated from Temple college basketball.
On January 4, 2010, he signed for Hapoel Afula of Israel for the rest of the 2009–10 season.
On August 4, 2010, he signed for Mersin of Turkey for the 2010–11 season and on February 15, 2011, he signed for ČEZ Basketball Nymburk of the Czech Republic for the rest of the season. In April 2011, he left ČEZ Nymburk and joined PAOK B.C.
On October 18, 2011, Christmas signed for Rethymno Aegean B.C. In 26 games, he averaged 18.6 points, 4.4 rebounds, 3.0 assists and 1.6 steals per game.
On October 31, 2012, he signed for CSKA Moscow of Russia for the 2012–13 season and on April 10, 2013, he signed for Montepaschi Siena of Italy for the rest of the season.
On September 13, 2013, he signed for the Suns and on November 1, 2013, he made his NBA debut, recording 9 points and 4 rebounds in an 87-84 victory over the Utah Jazz. On September 26, 2014, he signed for the New Orleans Pelicans. However, he was later waived and on November 12, 2014, Christmas signed for Paris-Levallois for the rest of the 2014–15 LNB Pro A season.
On October 10, 2015, Christmas signed for the Cleveland Cavaliers and he was waived on October 23. On December 1, he signed for Hapoel Holon of the Israeli Basketball Premier League, but was waived on December 20 after two games.