King Charles and Prince Harry were less than 3 miles apart in London — but the pair still didn’t meet

King Charles and Prince Harry were less than 3 miles away from each other on Wednesday — but the pair have never seemed further apart.

The Duke of Sussex, 39, returned to London this week to celebrate the 10th anniversary of the Invictus Games.

But hopes for a royal reconciliation were slashed later that day when Harry’s reps confirmed to The Post that he would not meet with his estranged father due to the king’s “full” schedule.

And on Wednesday, the estranged duo’s rift was on clear display as the king hosted a garden party — his first since his cancer diagnosis — at Buckingham Palace for some 8,000 guests.

At the same time — just 2.6 miles away — Harry gave a reading at London’s St Paul’s Cathedral to mark a decade since the inaugural Invictus Games took place in the capital.

Prince Harry ‘in tears’ after King Charles bestows military honor on Prince William: ‘The gloves are off’

Over at the palace, the monarch, 75, was joined by his wife, Queen Camilla, the Duke and Duchess of Edinburgh, Princess Anne, and the Duke and Duchess of Gloucester.

Harry, for his part, arrived at his event alone .

Inside, he was joined by his late mother Princess Diana’s relatives, including his uncle and aunt Earl Spencer and Lady Jane Fellowes, who greeted the Duke with a hug.

Meghan Markle would break royal family’s ‘golden rule’ with rumored politics career: ‘It would impact Harry’

Harry appeared to be in good spirits as he beamed from ear to ear upon arrival, waving to excited fans lining the streets of London.

He later joined Invictus competitors and staff for a reception in the cathedral’s crypt, before diving into endless meetings for the rest of the day.

Prince William did not attend either event, instead carrying out a royal engagement at Windsor Castle Wednesday morning spending the day with his cancer-stricken wife Kate Middleton and their three children.

CLICK HERE TO SIGN UP FOR OUR MORNING REPORT NEWSLETTER

And chances for a royal reunion on Thursday are equally slim, as the king has a royal engagement in Surrey, south of London, where he will meet staff at the Army’s Royal Engineers.

Charles, who is Colonel-in-Chief of the Royal Engineers, will spend the day with military staffers and their families before speaking to members of the 8 Engineer Brigade.

The king has been juggling his royal duties while receiving cancer outpatient treatment this week.

Harry, for his part, will be leaving his home soil Thursday to join his wife, Meghan Markle, in Nigeria .

The duo, who quit royal life in 2020 and hightailed it across the pond, were invited to Nigeria by the west African country’s chief of defense staff — its highest-ranking military official.

For the latest in entertainment, top headlines, breaking news and more, visit nypost.com/entertainment/