| Trip | Sched | Corr ↓ | Delay | Wait | Block | Vehicle |
|---|---|---|---|---|---|---|
| 531 Willowbrook | 15:09 | 15:12 | -3 | 22 min | 321 014 | 18115 |
| 531 Willowbrook | 15:29 | 15:22 | +7 | 39 min | 321 025 | 18112 |
| 531 Willowbrook | 15:50 | 15:55 | -5 | 60 min | 320 012 | 24136 |
| 531 Willowbrook | 16:10 | 16:10 | -0½ | 80 min | 321 019 | 18128 |
| 531 Willowbrook | 16:30 | 16:31 | -1½ | 321 030 | 19113 | |
| 531 Willowbrook | 16:50 | 321 031 | ||||
| 531 Willowbrook | 17:06 | 17:05 | +1 | 321 022 | 18131 | |
| 531 Willowbrook | 17:24 | 17:14 | +9½ | 502 044 | 19110 | |
| 531 Willowbrook | 17:40 | 17:43 | -3 | 321 014 | 18115 | |
| 531 Willowbrook | 17:58 | 17:51 | +7 | 321 025 | 18112 | |
| 531 Willowbrook | 18:15 | 18:20 | -5 | 320 012 | 24136 | |
| 531 Willowbrook | 18:32 | 18:32 | -0½ | 321 019 | 18128 | |
| 531 Willowbrook | 18:51 | 18:52 | -1½ | 321 030 | 19113 | |
| 531 Willowbrook | 19:18 | 321 031 | ||||
| 531 Willowbrook | 19:47 | 19:50 | -3 | 321 014 | 18115 | |
| 531 Willowbrook | 20:16 | 20:09 | +7 | 321 025 | 18112 | |
| 531 Willowbrook | 20:46 | 20:46 | -0½ | 321 019 | 18128 | |
| 531 Willowbrook | 21:13 | 321 031 | ||||
| 531 Willowbrook | 22:11 | 22:04 | +7 | 321 025 | 18112 | |
| 531 Willowbrook | 23:10 | 23:12 | -2½ | 321 007 | 19143 | |
| 531 Willowbrook | 24:10 | 24:03 | +7 | 321 025 | 18112 | |
| 531 Willowbrook | 06:14 | 320 007 | ||||
| 531 Willowbrook | 06:44 | 320 022 | ||||
| 531 Willowbrook | 07:14 | 320 006 | ||||
| 531 Willowbrook | 07:45 | 320 020 |