Chairman of Cardiff Airport, Roger Lewis, has agreed to remain in his role until the end of May next year.
Mr Lewis earlier this year announced that he planned to step down on October 31st after four years in the role.
However, he has agreed to remain in post until next spring with his identified preferred successor planning to be in post from June.
The details of the appointment of the yet to be disclosed preferred candidate are being finalised, following a competitive recruitment process.
The Rhoose-based airport is owned by the Welsh Government.
Minister for the Economy and Transport, Ken Skates, said: "On behalf the Welsh Government I would like to record my gratitude for the great work Roger has done so far with the airport, and will now continue to do until June.
“I have no doubt that Roger will continue to bring his focus and leadership to this important role.”
Mr Lewis added: “It has been an honour to be a part of such a dynamic team who have continuously delivered not just for Cardiff Airport, but for Wales.
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“Our national airport is in great shape and, whilst we acknowledge there is more work to be done, our journey ahead looks bright. I look forward to continuing to work alongside the airport team who continue to show their dedication to the people of Wales.”
Mr Lewis has also started a new Welsh Government role as president of Amgueddfa Cymru - National Museum Wales, a family of seven museums located throughout Wales.
The airport's chief executive Deb Bowen Rees said: “Roger has played a vital role in providing strategic leadership and has imparted a wealth of knowledge that has empowered us, as board of directors, to drive the airport business forward and deliver some huge successes.
“On behalf of the entire team, I would like to thank Roger for agreeing to continue leading the airport team into 2020.”