Seoul Subway on-time report, 2026-09-01
How punctual the Seoul Subway was on 2026-09-01: on-time rate by line, the least punctual line, and delays by hour.
Summary of the day
On 2026-09-01, of 193,522 Seoul Subway arrivals matched to the timetable, 87.3% came within 5 minutes.
The least punctual line was Gyeongui–Jungang Line (64.6% on time).
On-time rate by line
| Line | On time |
|---|---|
| Gyeongui–Jungang Line | 64.6% |
| Gyeongchun Line | 67.6% |
| Seohae Line | 72.5% |
| Line 1 | 76.7% |
| AREX Airport Railroad | 81.3% |
| Line 4 | 81.4% |
| Line 9 | 85.2% |
| Line 2 | 85.5% |
| Suin–Bundang Line | 87.5% |
| Gyeonggang Line | 88.4% |
| Line 3 | 90.5% |
| GTX-A | 92.2% |
| Line 7 | 94.9% |
| Line 8 | 98.3% |
| Sillim Line | 98.3% |
| Line 5 | 98.6% |
| Line 6 | 99.4% |
| Ui–Sinseol Line | 99.9% |
| Sinbundang Line | 100.0% |
Compiled from real-time train position data published by Seoul Open Data Plaza.