It was his first trip back to Britain since his explosive exit from the Royal Family last March.
While the estranged royal is thought to have attempted peace talks with his brother Prince William and father Prince Charles, they are said to have been unsuccessful.
It is not clear how many family members he managed to see away from the televised funeral as he came out of quarantine only the morning before the ceremony.
Having travelled from the US, he would have been expected to carry out another five days of quarantine after the funeral before socialising.
His spokesman declined to discuss what Harry’s plans were after the funeral, but said the royal would continue to follow the Government’s current Covid restrictions while in the UK.
Harry’s admission before not being able to see Princess Charlotte: ‘What a bad uncle I am’
Harry once described his niece and nephews as the “most amazing”
His return flight means he might not have got an opportunity to spend time with his niece, Princess Charlotte, and his nephews, Princes George and Louis, despite not seeing them in more than a year.
Biographer Angela Levin explained in her biography ‘Harry: Conversations with the Prince’ that this is not the first time he has missed a significant chance to see his niece.
The Duke of Sussex also skipped Charlotte’s christening back in 2015.
Ms Levin said: “Harry missed Charlotte’s christening, which was held on July 5 at St Mary Magdalene Church at the Queen’s Sandringham estate, as this time he was in Africa.
“He felt rather guilty.”
Charlotte’s christening in Sandhurst in 2015
Speaking to the manager of Save the Rhino in Africa, Simson Uri-Khob, he reportedly said: “What a band uncle I am!”
He added: “I should really be there, but today I am here, this is where I want to be.”
Ms Levin continued: “He explained that it was a recce trip on behalf of William too, and he’d be taking ‘a lot of new information back home with me for my brother and me to analyse and we’re going to work out a strategy for doing more in Africa and to encourage new conservation’.
“He said [it was] something ‘really precious to me and I’m learning a lot’.
Kate with her two youngest children, Louis and Charlotte
Kate, Charlotte and Harry at Trooping the Colour when Harry was still a working royal
Harry’s quick return back to the US means he will be missing his brother and sister-in-law’s tenth wedding anniversary, as well as Prince Louis’ third birthday this Friday.
But, he may attempt to send a gift overseas for his nephew, especially as Harry has previously splashed out on presents for the two-year-old.
He reportedly intended to spend £24,000 on Lewis Carrolls’ Through The Looking Glass, but reconsidered it when thinking about Louis’ age.
He still ended up paying a staggering £8,000 for a first edition of A.A. Milne’s Winnie-The-Pooh book for Louis’ christening.
Harry and Meghan sent gifts to George, Charlotte and Louis for Christmas, too, despite the ongoing fallout between their families.
Harry was back in the UK to attend Philip’s funeral on Saturday
Equally, the Cambridges are unlikely to meet the Sussexes’ new daughter — who is set to arrive this summer — any time soon, especially if the brotherly rift continues.
Some critics predict that Charlotte or Louis may follow in their uncle’s footsteps and boycott royal tradition, as neither are direct heirs to the throne.
This means they are likely to occupy the same difficult position as Harry did as the spare, without a clear “path” or position within the monarchy.
The Cambridge children have actually pushed Harry further down the line of succession, although in a 2017 interview with the Mail on Sunday he said this did not bother him at all.
He said: “The reason I am now fifth [in the line of succession] is because of my nephew and niece and I could never wish them away.
“They are the most amazing things ever.”
Source: EXPRESS CO UK