The Christian pop star, 78, has previously told how the trauma of BBC coverage of the police search of his Berkshire home in 2014, following a claim of historical sexual assault, had left him emotionally drained.
Sir Cliff was not arrested and charges were never brought, and he won a privacy case against the BBC last year.
However, Sir Cliff has now chosen to leave the UK for good, with Hunniford telling The Sun: “Cliff won’t come back and live here.
“He has made that jump now. He was very disillusioned with what happened.”
She said that he “likes the anonymity in America”, adding: “Some people recognise him but he does not get it all the time like he does here.”
TV presenter Hunniford, a long-time friend of Sir Cliff, said that he “loves coming back to perform occasionally and is looking forward to playing summer shows this year”.
But she said she does not think he will ever return to live in the UK full-time again.
Sir Cliff has previously spoken of how the 2014 raid and the following legal battle took a toll on him.
In November, he told LBC: “I think most people know that what I have been through has been pretty traumatic emotionally … It’s been horrible.”
He added: “I finally feel that I came out of that mud and mire, and I’m here again and I’m doing what I’m best at really and what I enjoy most.
“So, if I do sound…
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