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