Seoul Subway on-time report, 2026-08-31
How punctual the Seoul Subway was on 2026-08-31: on-time rate by line, the least punctual line, and delays by hour.
Summary of the day
On 2026-08-31, of 195,310 Seoul Subway arrivals matched to the timetable, 89.4% came within 5 minutes.
The least punctual line was Gyeongchun Line (65.4% on time).
On-time rate by line
| Line | On time |
|---|---|
| Gyeongchun Line | 65.4% |
| Gyeongui–Jungang Line | 69.5% |
| Seohae Line | 72.6% |
| AREX Airport Railroad | 80.9% |
| Line 1 | 84.0% |
| Line 4 | 84.1% |
| Line 2 | 84.3% |
| Line 9 | 85.1% |
| Suin–Bundang Line | 88.3% |
| Gyeonggang Line | 88.4% |
| GTX-A | 93.4% |
| Line 3 | 95.2% |
| Line 5 | 98.6% |
| Line 7 | 98.8% |
| Line 6 | 99.4% |
| Sillim Line | 99.4% |
| Line 8 | 99.6% |
| Sinbundang Line | 100.0% |
| Ui–Sinseol Line | 100.0% |
Compiled from real-time train position data published by Seoul Open Data Plaza.