- Oakhurst to Cockatoo Island
- Oakville to Cockatoo Island
- Oatlands to Cockatoo Island
- Oatley to Cockatoo Island
- Old Guildford to Cockatoo Island
- Old Toongabbie to Cockatoo Island
- Oran Park to Cockatoo Island
- Orchard Hills to Cockatoo Island
- Oxford Falls to Cockatoo Island
- Oxley Park to Cockatoo Island
- Oyster Bay to Cockatoo Island
- Sydney Airport to Cockatoo Island
- Cockatoo Island to Oakhurst
- Cockatoo Island to Oakville
- Cockatoo Island to Oatlands
- Cockatoo Island to Oatley
- Cockatoo Island to Old Guildford
- Cockatoo Island to Old Toongabbie
- Cockatoo Island to Oran Park
- Cockatoo Island to Orchard Hills
- Cockatoo Island to Oxford Falls
- Cockatoo Island to Oxley Park
- Cockatoo Island to Oyster Bay
- Cockatoo Island to Sydney Airport