Whiteman is set to join educational travel specialist Next Generation Travel later in the year, leading six brands within its portfolio.
She joined Saga in September 2016 in the newly created role of managing director of Saga Holidays.
Robin Shaw, chief executive of Saga Travel, said: “In her two-and-a-half years with Saga, Maria has had a significant impact on Saga Holidays and has been critical to shaping the strategy, which we continue to be fully committed to.
“I would like to thank Maria for her considerable contribution to the business and wish her every success in her future role."
