| Headsigns | Start | End | Duration | Schedule |
|---|---|---|---|---|
531 WILLOWBROOK 531 WHITE ROCK CTR | 06:20 | 21:03 | 14:43 | Su (4/06-5/17) |
| Headsign | Start | End | Duration | Service days |
|---|---|---|---|---|
| 531 WHITE ROCK CTR | 06:20 | 07:03 | 00:43 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 07:20 | 08:04 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 08:20 | 09:04 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 09:20 | 10:04 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 10:20 | 11:10 | 00:50 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 11:20 | 12:09 | 00:49 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 12:20 | 13:09 | 00:49 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 13:20 | 14:09 | 00:49 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 14:20 | 15:10 | 00:50 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 15:20 | 16:07 | 00:47 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 16:20 | 17:08 | 00:48 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 17:20 | 18:03 | 00:43 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 18:20 | 19:06 | 00:46 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 19:20 | 20:02 | 00:42 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 20:20 | 21:03 | 00:43 | Su (4/06-5/17) +4/10 |