Sonne was a member of the gold medal winning Canadian team at the 2009 World Junior Ice Hockey Championships Sonne began his major junior career with the Calgary Hitmen of the WHL in 2004–05, playing in six games as a 15-year-old.

[2] He was named to the WHL East First All-Star Team, along with teammates Paul Postma and Brandon Kozun,[3] and won the Four Broncos Memorial Trophy as WHL player of the year, beating out Western Conference nominee and Bob Clarke Trophy-winner Casey Pierro-Zabotel of the Vancouver Giants.

[1] He recorded one goal and two assists in six games, as Canada won its fifth consecutive gold medal at the tournament.

[5] On April 9, 2013, Sonne was traded from the Texas Stars to the Peoria Rivermen for defenseman Carl Sneep.

[8] After four seasons within the Blues organization, Sonne was released as a free agent and signed a one-year contract with Austrian club Dornbirner EC of the EBEL on July 30, 2013.