Adele’s seat was across the aisle and just metres away from Brown and cameras caught her glaring at him and shaking her head.
Later Adele cornered him and was seen exchanging tense words with him, News.com.au reported.
The conversation was not audible, but Brown’s body language looked uncomfortable as he held out his arms while the 24-year-old new mum gave him an earful.
Last month Brown, 23, and Ocean, 25, got into a fight outside a Los Angeles recording studio but neither pressed charges.