Prince Harry is already leaving the UK after briefly visiting his father, King Charles III, following the reigning monarch’s cancer diagnosis.

The Duke of Sussex was spotted hopping on a plane at Heathrow Airport in London on Wednesday after seeing his father for less than an hour the day before, according to the Daily Mail.

Page Six previously reported that Harry met up with Charles at Clarence House for “a quick visit” on Tuesday afternoon.

Earlier on Tuesday, the redheaded royal had been seen landing in London before making his way to his father’s side without his wife, Meghan Markle.

Page Six was previously told that the Duchess of Sussex had stayed in California to remain home with the couple’s two kids: Prince Archie, 4, and Princess Lilibet, 2.

Harry immediately got on a flight to see his dad after the palace announced Monday that Charles had been diagnosed with cancer.

This story is developing.