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