Airport punctuality: South Korea
Departures from 9 October 2026 to 6 November 2026 at 10 airports in South Korea whose official boards publish actual departure times. Updated weekly.
The most punctual airport is Sacheon (HIN) with 72% of departures on time; the least punctual is Jeju (CJU) with 22%.
| # | Airport | On time | Avg. delay | Cancelled | Flights |
|---|---|---|---|---|---|
| 1 | Sacheon (HIN) | 72% | 13 min | 2.9% | 166 |
| 2 | Ulsan (USN) | 67% | 17 min | 0.0% | 147 |
| 3 | Daegu (TAE) | 64% | 16 min | 0.4% | 934 |
| 4 | Yeosu (RSU) | 61% | 19 min | 0.0% | 173 |
| 5 | Busan (PUS) | 56% | 19 min | 2.1% | 4441 |
| 6 | Gwangju (KWJ) | 49% | 22 min | 0.0% | 455 |
| 7 | Cheongju (CJJ) | 49% | 21 min | 0.7% | 1496 |
| 8 | Seoul Gimpo (GMP) | 37% | 24 min | 0.9% | 5162 |
| 9 | Seoul Incheon (ICN) | 30% | 28 min | 0.0% | 15661 |
| 10 | Jeju (CJU) | 22% | 30 min | 1.1% | 7130 |
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