- Oak Park to Quest South Melbourne
- Oaklands Junction to Quest South Melbourne
- Oakleigh East to Quest South Melbourne
- Oakleigh South to Quest South Melbourne
- Oakleigh to Quest South Melbourne
- Ocean Grove to Quest South Melbourne
- Officer to Quest South Melbourne
- Olinda to Quest South Melbourne
- Ormond to Quest South Melbourne
- Melbourne Airport to Quest South Melbourne
- Quest South Melbourne to Oak Park
- Quest South Melbourne to Oaklands Junction
- Quest South Melbourne to Oakleigh East
- Quest South Melbourne to Oakleigh South
- Quest South Melbourne to Oakleigh
- Quest South Melbourne to Ocean Grove
- Quest South Melbourne to Officer
- Quest South Melbourne to Olinda
- Quest South Melbourne to Ormond
- Quest South Melbourne to Melbourne Airport