Seoul Subway on-time report, 2026-08-18
How punctual the Seoul Subway was on 2026-08-18: on-time rate by line, the least punctual line, and delays by hour.
Summary of the day
On 2026-08-18, of 141,460 Seoul Subway arrivals matched to the timetable, 86.7% came within 5 minutes.
The least punctual line was Gyeongchun Line (49.6% on time).
On-time rate by line
| Line | On time |
|---|---|
| Gyeongchun Line | 49.6% |
| Line 8 | 51.7% |
| Seohae Line | 65.7% |
| Gyeongui–Jungang Line | 67.9% |
| Line 4 | 73.7% |
| AREX Airport Railroad | 79.9% |
| Line 1 | 85.5% |
| Line 9 | 87.6% |
| Gyeonggang Line | 88.7% |
| Line 3 | 90.4% |
| GTX-A | 91.4% |
| Suin–Bundang Line | 93.8% |
| Line 2 | 96.9% |
| Line 7 | 97.5% |
| Line 5 | 97.8% |
| Line 6 | 99.0% |
| Sillim Line | 99.9% |
| Ui–Sinseol Line | 100.0% |
Compiled from real-time train position data published by Seoul Open Data Plaza.