Heathrow boss John Holland-Kaye is to stand down later in 2023 after nine years in charge.
A selection process for his replacement has been initiated and he will remain as chief executive until his successor starts in post in order to ensure a smooth handover.
Heathrow chair Lord Deighton said: “John has been an extraordinary leader of Heathrow.
“During the past nine years, he has worked tirelessly and collaboratively with shareholders, Ministers, airlines and other stakeholders to ensure the country can be proud of its ‘front door’.
“The board would like to put on record our gratitude to John for his dedication and commitment to Heathrow throughout his tenure as CEO.”
Holland-Kaye steered the London hub through the Covid-19 crisis and recovery and developed plans for expansion.