The former One Show pair were confirmed to be leaving the ITV breakfast format at the end of the year following months of poor ratings.
Sources have now claimed that Chiles and Bleakley will finish the programme on Monday, December 5.
"It was felt that Adrian and Christine were better off out of there now that everyone knows they are going," an insider told The Mirror. "There's nothing to be gained by keeping them on the sofa."
Viewers are expected to be treated to a montage of their best Daybreak moments during their 'final' show.
Current Daybreak presenters Kate Garraway and Dan Lobb are said to be covering for the departed pair until new presenters who can "grow with the audience" can be found.
BBC Breakfast host Sian Williams and Channel 5 news presenter Matt Barbet have both been tipped for the job.