Route 503 First Ave
| Downtown Terminal | Fitch St. & First Ave. | First Ave. & Norway Ave | Niagara College | Niagara St. & Elmview St. | Downtown Terminal |
|---|---|---|---|---|---|
| Monday to Friday | |||||
| 6:00 a.m. | 6:05 a.m. | 6:08 a.m. | 6:15 a.m. | 6:22 a.m. | 6:27 a.m. |
| and every 30 minutes until | |||||
| 6:00 p.m. | 6:05 p.m. | 6:08 p.m. | 6:15 p.m. | 6:22 p.m. | 6:27 p.m. |
| and every 60 minutes until | |||||
| 10:00 p.m. | 10:05 p.m. | 10:08 p.m. | 10:15 p.m. | 10:22 p.m. | 10:27 p.m. |
| Saturday | |||||
| 6:00 a.m. | 6:05 a.m. | 6:08 a.m. | 6:15 a.m. | 6:22 a.m. | 6:27 a.m. |
| and every 60 minutes until | |||||
| 9:00 a.m. | 9:05 a.m. | 9:08 a.m. | 9:15 a.m. | 9:22 a.m. | 9:27 a.m. |
| Sunday/Holidays | |||||
| 10:00 a.m. | 10:05 a.m. | 10:08 a.m. | 10:15 a.m. | 10:22 a.m. | 10:27 a.m. |
| and every 60 minutes until | |||||
| 5:00 p.m. | 5:05 p.m. | 5:08 p.m. | 5:15 p.m. | 5:22 p.m. | 5:27 p.m. |