| Carolina to Octeville | 4,114.75 mi (6,622.06 km) |
| Carolina to Oignies | 4,325.14 mi (6,960.64 km) |
| Carolina to Oissel | 4,234.73 mi (6,815.13 km) |
| Carolina to Olivet | 4,264.17 mi (6,862.52 km) |
| Carolina to Ollioules | 4,450.67 mi (7,162.66 km) |
| Carolina to Olonne-sur-Mer | 4,085.09 mi (6,574.31 km) |
| Carolina to Oloron-Sainte-Marie | 4,125.56 mi (6,639.45 km) |
| Carolina to Onet Village | 4,287.78 mi (6,900.52 km) |
| Carolina to Onnaing | 4,351.33 mi (7,002.79 km) |
| Carolina to Orange | 4,397.39 mi (7,076.91 km) |
| Carolina to Orchies | 4,336.16 mi (6,978.38 km) |
| Carolina to Orleans | 4,264.72 mi (6,863.41 km) |
| Carolina to Orly | 4,290.47 mi (6,904.84 km) |
| Carolina to Ormesson-sur-Marne | 4,297.26 mi (6,915.77 km) |
| Carolina to Orsay | 4,280.93 mi (6,889.49 km) |
