Esta línea une la Terminal con el Centro Invernal Cerro Catedral en dos recorridos: uno por la Av. Bustillo y el otro por Av. Pioneros.
LUNES A LUNES
55B - RECORRIDO POR AV. BUSTILLO
IDA
| Terminal | Centro | Catedral |
| 7:00 | 7:15 | 8:10 |
| 9:00 | 9:15 | 10:10 |
| 11:00 | 11:15 | 12:10 |
| 13:00 | 13:15 | 14:10 |
| 15:00 | 15:15 | 16:10 |
| 17:00 | 17:15 | 18:10 |
| 19:00 | 19:15 | 20:10 |
VUELTA
| Catedral | Centro | Terminal |
| 8:10 | 8:40 | 8:50 |
| 10:10 | 10:40 | 10:50 |
| 12:10 | 12:40 | 12:50 |
| 14:10 | 14:40 | 14:50 |
| 16:10 | 16:40 | 16:50 |
| 18:10 | 18:40 | 18:50 |
| 20:10 | 20:40 | 20:50 |
55P - RECORRIDO POR AV. PIONEROS
IDA
| Terminal | Centro | Catedral |
| 8:00 | 8:15 | 9:10 |
| 10:00 | 10:15 | 11:10 |
| 12:00 | 12:15 | 13:10 |
| 14:00 | 14:15 | 15:10 |
| 16:00 | 16:15 | 17:10 |
| 18:00 | 18:15 | 19:10 |
| 20:00 | 20:15 | 21:10 |
VUELTA
| Catedral | Centro | Terminal |
| 9:10 | 9:40 | 9:50 |
| 11:10 | 11:40 | 11:50 |
| 13:10 | 13:40 | 13:50 |
| 15:10 | 15:40 | 15:50 |
| 17:10 | 17:40 | 17:50 |
| 19:10 | 19:40 | 19:50 |
| 21:10 | 21:40 | 21:45 |
