| Trip | Sched | Corr ↓ | Delay | Wait | Block | Vehicle |
|---|---|---|---|---|---|---|
| 531 Willowbrook | 12:06 | 12:11 | -5½ | 9 min | 321 023 | 19112 |
| 531 Willowbrook | 12:35 | 12:51 | -17 | 33 min | 321 015 | 18373 |
| 531 Willowbrook | 13:05 | 13:02 | +3 | 63 min | 320 017 | 24136 |
| 531 Willowbrook | 13:35 | 13:34 | +0½ | 321 029 | 9685 | |
| 531 Willowbrook | 14:00 | 13:55 | +4½ | 321 014 | 18374 | |
| 531 Willowbrook | 14:20 | 321 010 | 24108 | |||
| 531 Willowbrook | 14:40 | 502 045 | ||||
| 531 Willowbrook | 15:00 | 14:52 | +8 | 321 016 | 18119 | |
| 531 Willowbrook | 15:20 | 15:20 | -0 | 321 024 | 24137 | |
| 531 Willowbrook | 15:42 | 15:39 | +3 | 320 017 | 24136 | |
| 531 Willowbrook | 16:01 | 16:02 | -1½ | 321 020 | 24117 | |
| 531 Willowbrook | 16:21 | 16:21 | -1 | 321 022 | 18375 | |
| 531 Willowbrook | 16:41 | 321 031 | ||||
| 531 Willowbrook | 16:57 | 17:02 | -5½ | 321 023 | 19112 | |
| 531 Willowbrook | 17:15 | 502 045 | ||||
| 531 Willowbrook | 17:33 | 17:25 | +8 | 321 016 | 18119 | |
| 531 Willowbrook | 17:51 | 17:51 | -0 | 321 024 | 24137 | |
| 531 Willowbrook | 18:08 | 18:05 | +3 | 320 017 | 24136 | |
| 531 Willowbrook | 18:25 | 18:26 | -1½ | 321 020 | 24117 | |
| 531 Willowbrook | 18:44 | 18:44 | -1 | 321 022 | 18375 | |
| 531 Willowbrook | 19:11 | 321 031 | ||||
| 531 Willowbrook | 19:40 | 19:32 | +8 | 321 016 | 18119 | |
| 531 Willowbrook | 20:10 | 20:10 | -0 | 321 024 | 24137 | |
| 531 Willowbrook | 20:40 | 20:41 | -1½ | 321 020 | 24117 | |
| 531 Willowbrook | 21:07 | 321 031 |