The Copacabana hitmaker revealed in December 2025 he had been diagnosed with stage 1 lung cancer and hasn't performed live since, having cancelled gigs in Sin City in February, as well as his arena tour launch dates in February and March, followed by his April gigs.
He's now shared another update with fans in which he admitted he is still "not quite ready" to return to the stage.
Barry began his update on a positive tone, noting he has made "great progress" with his health.
He wrote on his Instagram Story: "Good news! I went to the doctor yesterday and he said I'm making great progress and look great. Well of course I do! Thank you very much! All the training and exercising I've put in is paying off.
"He did say, however, that I'm not quite ready for Vegas. That means I won't be able to return for our May shows at (Westgate Las Vegas)."
The 82-year-old singer is confident his planned arena shows in the UK will go ahead and he will eventually return to the Las Vegas stage for his shows in July.
He concluded: "But the good news is he said I will be ready for my June arena shows in the UK. It's going to be great to see you all in the UK. Westgate Las Vegas is my home away from home…and I'll see you all in July. In the meantime…come to the UK! We'll be there in June and hope you will be too! See you then… Barry."
The veteran crooner recently admitted he has found it "agony" waiting for his health to improve enough for him to be allowed back on stage.
He told The Sunday Times newspaper: "I am still not there yet ... I'm not totally healed. The doctors said that it would take a while, but I have no patience and waiting is agony.
"For my voice to come back, for my breathing to come back. It's driving me nuts. I tried to sing my show, but I have not been able to make it to the end without getting so winded that I have to stop. I haven't been able to do 90 minutes yet.
"I am getting closer and the doctors say it will come back, but they say: 'Barry, you've been through hell. Ease up!' And I have never heard a doctor say that, so it must have been more difficult than I thought."
It comes after Manilow admitted he thought he was "dying" after he was diagnosed with lung cancer, crediting his quick-thinking doctor with saving his life by ordering a scan as a precaution after hearing about recent bouts of bronchitis.
Manilow told People magazine: "If he (the doctor) hadn't done that (ordered the scan), man ... He saved my life, because there's no symptoms for what I had.
"I could go on, nothing hurt - but they found the dot in my lung. They called me and said: 'Could be cancer.' That's a bad word.
"Not me. F*** you. I can't have cancer' ...
"They don't even know how long I had this thing sitting on me. It could have been years. If it had gone any further, then I would be up s*** creek. It just so happened that it hadn't spread, and boy oh boy, I thought I might be dying."
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