Incheon International Airport (ICN) August 2025 Operational Report

Flight Activity Overview

Total Departing Flights: 16,379

Year-over-Year Change in Departing Flights: +2.15%

In August 2025, Incheon International Airport handled 16,379 departing flights, a year-over-year change of +2.15%. Capacity increases on regional Northeast Asia routes and steady long‑haul demand supported the growth. The hub’s role for Korea–Japan and Korea–Southeast Asia traffic helped smooth seasonal peaks.

On-Time Performance and Cancellations

Departure On-Time Performance: 49.18%

Year-over-Year Change in On-Time Performance: +4.51 percentage points

Cancelled Flights: 487

Year-over-Year Change in Cancellations: +108.12%

Departure on-time performance averaged 49.18%, an improvement of +4.51 percentage points versus a year earlier. Afternoon convective weather and air traffic flow restrictions during typhoon season contributed to delays, while ground handling adjustments mitigated knock‑on effects. For travelers, this meant more variability late in the day even as cancellations totaled 487 (+108.12% YoY).

Airlines Serving Incheon International Airport

Service at Incheon International Airport is led by Korean Air and Asiana Airlines, complemented by carriers such as Jeju Air, Jin Air and T’way. The network spans Northeast and Southeast Asia with strong transpacific and European links, reinforcing the hub’s connecting role.

Outlook

Over the next 4–8 weeks, schedules at the hub should remain broadly stable with on‑time performance near current levels; late‑day thunderstorm windows and weekend surges are the main risks. Passengers should prefer morning departures, allow 60–90 minutes of buffer for security and connections on peak days, and track real‑time gate and weather alerts via the NextFly App.