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