A flight carrying the partner of Sian Blake left Ghana on Thursday night bound for the UK as he is extradited on suspicion of killing the ex-EastEnders actress and her two children.
Arthur Simpson-Kent was arrested in Ghana after leaving the country days after Ms Blake and their sons Zachary, eight, and four-year-old Amon were reported missing.
They were later found buried in the garden of the couple's home in Erith, Kent, on January 5.
A post-mortem revealed the three died from neck and head injuries.
Police had spoken to Simpson-Kent at the house on December 16, and returned two days later to find the property empty.
He arrived in Ghana the following day, and was arrested on January 9.
The 48-year-old had previously said he would not fight extradition.