Seoul Subway on-time report, 2026-08-23
How punctual the Seoul Subway was on 2026-08-23: on-time rate by line, the least punctual line, and delays by hour.
Summary of the day
On 2026-08-23, of 161,718 Seoul Subway arrivals matched to the timetable, 91.7% came within 5 minutes.
The least punctual line was Seohae Line (60.2% on time).
On-time rate by line
| Line | On time |
|---|---|
| Seohae Line | 60.2% |
| Gyeongchun Line | 78.7% |
| Suin–Bundang Line | 78.8% |
| Gyeongui–Jungang Line | 82.1% |
| AREX Airport Railroad | 82.6% |
| Line 9 | 83.3% |
| Line 1 | 89.0% |
| Gyeonggang Line | 89.9% |
| Line 4 | 92.8% |
| GTX-A | 92.8% |
| Line 5 | 95.1% |
| Line 2 | 96.9% |
| Sillim Line | 97.0% |
| Line 7 | 97.3% |
| Line 3 | 98.4% |
| Line 6 | 99.0% |
| Line 8 | 99.5% |
| Ui–Sinseol Line | 100.0% |
Compiled from real-time train position data published by Seoul Open Data Plaza.