| Campbellsville to Octeville | 4,060.14 mi (6,534.16 km) |
| Campbellsville to Oignies | 4,225.22 mi (6,799.84 km) |
| Campbellsville to Oissel | 4,180.62 mi (6,728.06 km) |
| Campbellsville to Olivet | 4,257.14 mi (6,851.20 km) |
| Campbellsville to Ollioules | 4,577.83 mi (7,367.31 km) |
| Campbellsville to Olonne-sur-Mer | 4,138.99 mi (6,661.06 km) |
| Campbellsville to Oloron-Sainte-Marie | 4,289.06 mi (6,902.57 km) |
| Campbellsville to Onet Village | 4,394.74 mi (7,072.65 km) |
| Campbellsville to Onnaing | 4,251.70 mi (6,842.46 km) |
| Campbellsville to Orange | 4,498.85 mi (7,240.20 km) |
| Campbellsville to Orchies | 4,235.05 mi (6,815.66 km) |
| Campbellsville to Orleans | 4,256.34 mi (6,849.92 km) |
| Campbellsville to Orly | 4,251.46 mi (6,842.06 km) |
| Campbellsville to Ormesson-sur-Marne | 4,256.20 mi (6,849.70 km) |
| Campbellsville to Orsay | 4,244.35 mi (6,830.63 km) |
