- Oakhurst to Stamford Grand North Ryde
- Oakville to Stamford Grand North Ryde
- Oatlands to Stamford Grand North Ryde
- Oatley to Stamford Grand North Ryde
- Old Guildford to Stamford Grand North Ryde
- Old Toongabbie to Stamford Grand North Ryde
- Oran Park to Stamford Grand North Ryde
- Orchard Hills to Stamford Grand North Ryde
- Oxford Falls to Stamford Grand North Ryde
- Oxley Park to Stamford Grand North Ryde
- Oyster Bay to Stamford Grand North Ryde
- Sydney Airport to Stamford Grand North Ryde
- Stamford Grand North Ryde to Oakhurst
- Stamford Grand North Ryde to Oakville
- Stamford Grand North Ryde to Oatlands
- Stamford Grand North Ryde to Oatley
- Stamford Grand North Ryde to Old Guildford
- Stamford Grand North Ryde to Old Toongabbie
- Stamford Grand North Ryde to Oran Park
- Stamford Grand North Ryde to Orchard Hills
- Stamford Grand North Ryde to Oxford Falls
- Stamford Grand North Ryde to Oxley Park
- Stamford Grand North Ryde to Oyster Bay
- Stamford Grand North Ryde to Sydney Airport