The 36-year-old Duke of Sussex was photographed touching down at Heathrow Airport on Friday, with a convoy of royal vehicles and police vans waiting to escort him outside.
Harry arrived in the United Kingdom solo, without his wife, Meghan Markle.
Hours before touching down in his homeland, Harry was seen getting dropped off at LAX by a chauffeur in a 2021 Cadillac Escalade.
Harry was last in London on April for his grandfather Prince Philip's funeral.
As Radar reported, he felt "ambushed" his father, Prince Charles, and William during their unscheduled two-hour meeting at Windsor Castle following the service.
He refused to negotiate with his family without Meghan present.
Despite William's wife, Kate Middleton, working hard to "mediate" reconciliation between the feuding brothers, her efforts might fall to the waist-side now Meghan won't be joining Harry for the emotional ceremony.
A Kensington Palace spokesman released a statement regarding Harry's role in the statue unveiling following his arrival.
"Prince William and Prince Harry will attend a small event to mark the unveiling of a statue they commissioned of their mother, Diana, Princess of Wales, in the Sunken Garden at Kensington Palace on Thursday, July 1," the statement read on Friday.
"In addition to close family of Diana, Princess of Wales, members of the statue committee, the sculptor Ian Rank-Broadley, and garden designer, Pip Morrison, will also be present. Further details about the statue and garden will be provided on July 1."
While Harry gears up to face William, he won't have to see Prince Charles.
As Radar reported, the Prince of Wales will not be joining his feuding sons for his ex-wife's statue unveiling.
Instead, Charles will be conveniently 400 miles away at his Scottish estate, Balmoral.
“Charles has made it quite clear he will not be around … because he is going to Scotland,” a source told The Sun.
“There is no planned meeting between the three of them,” they added.