| Trip | Sched | Corr ↓ | Delay | Wait | Block | Vehicle |
|---|---|---|---|---|---|---|
| 531 Willowbrook | 11:46 | 11:18 | +27½ | 24 min | 321 022 | 18121 |
| 531 Willowbrook | 12:14 | 12:14 | -1 | 52 min | 321 015 | 19139 |
| 531 Willowbrook | 12:44 | 12:39 | +4 | 82 min | 320 012 | 7488 |
| 531 Willowbrook | 13:14 | 13:14 | +0 | 321 028 | 9695 | |
| 531 Willowbrook | 13:38 | 13:38 | -0½ | 321 012 | 24134 | |
| 531 Willowbrook | 13:58 | 13:54 | +4 | 321 010 | 7468 | |
| 531 Willowbrook | 14:18 | 502 044 | ||||
| 531 Willowbrook | 14:38 | 14:41 | -3½ | 321 014 | 7477 | |
| 531 Willowbrook | 14:58 | 321 025 | 18376 | |||
| 531 Willowbrook | 15:18 | 15:13 | +4 | 320 012 | 7488 | |
| 531 Willowbrook | 15:38 | 15:36 | +2 | 321 019 | 24105 | |
| 531 Willowbrook | 15:58 | 15:59 | -1½ | 321 030 | 7453 | |
| 531 Willowbrook | 16:18 | 321 031 | ||||
| 531 Willowbrook | 16:36 | 16:08 | +27½ | 321 022 | 18121 | |
| 531 Willowbrook | 16:54 | 502 044 | ||||
| 531 Willowbrook | 17:12 | 17:15 | -3½ | 321 014 | 7477 | |
| 531 Willowbrook | 17:30 | 321 025 | 18376 | |||
| 531 Willowbrook | 17:48 | 17:43 | +4 | 320 012 | 7488 | |
| 531 Willowbrook | 18:06 | 18:04 | +2 | 321 019 | 24105 | |
| 531 Willowbrook | 18:25 | 18:26 | -1½ | 321 030 | 7453 | |
| 531 Willowbrook | 18:52 | 321 031 | ||||
| 531 Willowbrook | 19:22 | 19:25 | -3½ | 321 014 | 7477 | |
| 531 Willowbrook | 19:52 | 321 025 | 18376 | |||
| 531 Willowbrook | 20:22 | 20:20 | +2 | 321 019 | 24105 | |
| 531 Willowbrook | 20:50 | 321 031 |