Since its grand opening in March​ ​2025, the International Terminal Building has been undergoing interior renovations of existing areas. Area After Security, a duty-free snack and food area will open on November 18th, 13 new stores will open on December 5th, and renovations to the boarding lounge are scheduled to be completed on December 20th. This marks ​the completionof the expansion and renovation work on the International Terminal Building and other facilities, which began in May 2022!

In addition to opening a duty-free snack and food area that is approximately three times larger than before, the waiting room will be renovated to create a relaxing Japanese-style space.

The existing concourse will be renovated to create a space consistent with the north concourse of the extension, which will begin operation in 2023, allowing passengers to spend their time before boarding more comfortably.
Based on the interior design concept for the entire international flight, which aims to create a relaxing atmosphere that evokes the essence of Fukuoka and Japan, the aircraft will feature a wooden ceiling reminiscent of the veranda of a Japanese house, and will have a small garden area with plants representing the four seasons. Additionally, the number of lobby chairs in the boarding lounge will be increased by approximately 300, and charging facilities will be expanded.