In a government-run airport assessment, Incheon Airport's "speed" grade fell. It means the airport became more congested as the time required to depart and arrive grew longer.
The Ministry of Land, Infrastructure and Transport (MOLIT) on the 16th released the "2025 air transport service evaluation results," which surveyed satisfaction with six domestic airports and 51 airlines. The Ministry of Land, Infrastructure and Transport publishes these annual evaluations to improve the service quality of airports and airlines.
In this assessment, Incheon Airport received a B grade in the speed category. It had received an A grade in 2024. The Ministry of Land, Infrastructure and Transport (MOLIT) said, "Due to high passenger congestion during the holiday period, it received a relatively lower grade." By contrast, Daegu Airport, which has fewer passengers, received an A+ grade. In addition, Gimpo Airport received an A, Jeju Airport a B+, Cheongju Airport a B, and Gimhae Airport a C++.
In "operational reliability," which judges whether flights were delayed for airlines, domestic carriers received an average grade of B+. Aero K (C) and Air Premia (C+), which had many cases of delays of at least one hour, received lower grades. The average grade for foreign airlines was also B. Among them, Southeast Asian carriers such as AirAsia X and Shenzhen Airlines had frequent delays and long delay durations, earning an E++ grade.
In the safety category, which assesses accidents and related factors, Korean Air Lines, Asiana, AIR SEOUL, Premia, and Eastar Jet Co. received A++, while Jeju Air and Jin Air received A+. Aero K received B++, and T'way Air received B+. AIR SEOUL, which experienced a cabin fire last year, received a B. At the time, there were no serious injuries from the fire, but 176 passengers and crew conducted an emergency evacuation.