- Oakhurst to Western Sydney University Village Penrith
- Oakville to Western Sydney University Village Penrith
- Oatlands to Western Sydney University Village Penrith
- Oatley to Western Sydney University Village Penrith
- Old Guildford to Western Sydney University Village Penrith
- Old Toongabbie to Western Sydney University Village Penrith
- Oran Park to Western Sydney University Village Penrith
- Orchard Hills to Western Sydney University Village Penrith
- Oxford Falls to Western Sydney University Village Penrith
- Oxley Park to Western Sydney University Village Penrith
- Oyster Bay to Western Sydney University Village Penrith
- Sydney Airport to Western Sydney University Village Penrith
- Western Sydney University Village Penrith to Oakhurst
- Western Sydney University Village Penrith to Oakville
- Western Sydney University Village Penrith to Oatlands
- Western Sydney University Village Penrith to Oatley
- Western Sydney University Village Penrith to Old Guildford
- Western Sydney University Village Penrith to Old Toongabbie
- Western Sydney University Village Penrith to Oran Park
- Western Sydney University Village Penrith to Orchard Hills
- Western Sydney University Village Penrith to Oxford Falls
- Western Sydney University Village Penrith to Oxley Park
- Western Sydney University Village Penrith to Oyster Bay
- Western Sydney University Village Penrith to Sydney Airport