- Oakhurst to Mercantile Hotel The Rocks
- Oakville to Mercantile Hotel The Rocks
- Oatlands to Mercantile Hotel The Rocks
- Oatley to Mercantile Hotel The Rocks
- Old Guildford to Mercantile Hotel The Rocks
- Old Toongabbie to Mercantile Hotel The Rocks
- Oran Park to Mercantile Hotel The Rocks
- Orchard Hills to Mercantile Hotel The Rocks
- Oxford Falls to Mercantile Hotel The Rocks
- Oxley Park to Mercantile Hotel The Rocks
- Oyster Bay to Mercantile Hotel The Rocks
- Sydney Airport to Mercantile Hotel The Rocks
- Mercantile Hotel The Rocks to Oakhurst
- Mercantile Hotel The Rocks to Oakville
- Mercantile Hotel The Rocks to Oatlands
- Mercantile Hotel The Rocks to Oatley
- Mercantile Hotel The Rocks to Old Guildford
- Mercantile Hotel The Rocks to Old Toongabbie
- Mercantile Hotel The Rocks to Oran Park
- Mercantile Hotel The Rocks to Orchard Hills
- Mercantile Hotel The Rocks to Oxford Falls
- Mercantile Hotel The Rocks to Oxley Park
- Mercantile Hotel The Rocks to Oyster Bay
- Mercantile Hotel The Rocks to Sydney Airport