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