Kazzaz, who has been with the Canadian carrier for 13 years, helped steer the company through the early days of the pandemic, when the aviation industry was brought to a near standstill.
Di Bert, who has served as CFO for both Bombardier and Pratt & Whitney Canada, will assume the role at Air Canada on July 1. He is currently CFO of Clarios International Inc.
The change comes at a time when Air Canada, like other North American carriers, faces cost pressures due to a labor shortage amid a rebound in travel.
Toronto-listed shares of Air Canada were up about 2% on Tuesday.
(Reporting by Pratyush Thakur in Bengaluru; Editing by Anil D'Silva)