Macandrew, a former journalist who was previously director of corporate communications at Sky, will join Cook on November 3 and will report to chief executive Peter Fankhauser.
She will assume responsibility for the tour operator’s communications strategy including public relations, social media, government affairs and corporate social responsibility (CSR) issues.
Fankhauser said of Macandrew: “She brings skills and experience, especially in the UK media environment, that will be hugely valuable as we enter the next stage of our transformation.
“Implementing our new operating model to become a truly customer-centric organisation will need strong communication to all our stakeholders.”