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