The parking lot has 2,457 parking spaces (1,800 in the short-term parking and 657 in the long-term parking), all of which are shaded and located within a short walk from the satellite building where passengers cross the departure bridge connected directly to the terminal.
UPAC used state-of-the-art parking equipment, which included technologies such as license plate recognition, automated entry and exit lanes as well as various other features for enhanced customer experience. UPAC has also installed an auto-pay Station within the satellite building, where customers can pre-pay for parking without having to wait in line for manual payments.
In 2018, UPAC signed a five-year concession contract with the Incheon International Airport Corporation (IIAC) for the development, operation and management of the parking lot and related facilities at T4.