ICN logged 4,980 flights across five days from March 29 to April 2, 2026, averaging 996 flights per day and 41.5 movements per hour around the clock. Arrivals and departures split almost evenly, with 2,499 arrivals and 2,481 departures. The busiest single day was March 30, at 1,148 total movements. Traffic ran continuously, with the first recorded flight at 00:00 KST and the last at 23:54. The peak hour was 20:00 to 21:00, which produced 346 movements, 186 of them departures. A secondary surge appeared at 08:00 to 09:00, driven heavily by departures (179 out of 282 total). The early morning window from 04:00 to 07:00 was arrival-dominated, with 116 arrivals recorded in the 05:00 hour alone against just 7 departures. The route picture was heavily Japan-oriented. Kansai International topped all pairings with 296 combined movements, followed closely by Narita at 290. Fukuoka ranked third at 144. Beyond Japan, Taiwan Taoyuan and Hong Kong each appeared in the top ten. The 1,060 unique aircraft came from registrations across more than 35 countries, with Chinese-registered aircraft (304) making up the largest single group, ahead of Korean (174) and US-registered (136) aircraft. Approach and departure tracks both showed a strong southerly orientation, with the S direction accounting for 760 arrivals and 955 departures, more than any other bearing by a wide margin. Cruise altitudes concentrated in two bands: a dense cluster from 30,000 to 36,000 feet and a secondary grouping in the lower approach and departure layers below 6,000 feet. The highest recorded altitude was 45,700 feet, flown by a US-registered aircraft (N655FX) on a departure to Kansai. Total tracked distance across all flights reached just under two million nautical miles.