| Danville to Orbetello | 6,160.10 mi (9,913.72 km) |
| Danville to Oria | 6,453.48 mi (10,385.87 km) |
| Danville to Oristano | 6,221.46 mi (10,012.48 km) |
| Danville to Orta Nova | 6,352.10 mi (10,222.72 km) |
| Danville to Orte | 6,193.05 mi (9,966.74 km) |
| Danville to Ortona | 6,256.41 mi (10,068.73 km) |
| Danville to Orvieto | 6,170.41 mi (9,930.31 km) |
| Danville to Orzinuovi | 5,956.76 mi (9,586.48 km) |
| Danville to Osimo | 6,165.51 mi (9,922.42 km) |
| Danville to Ospitaletto | 5,952.08 mi (9,578.94 km) |
| Danville to Ostuni | 6,438.30 mi (10,361.44 km) |
| Danville to Ottaviano | 6,345.50 mi (10,212.10 km) |
| Danville to Ovada | 5,961.60 mi (9,594.26 km) |
| Danville to Ozieri | 6,196.86 mi (9,972.88 km) |
| Danville to Paceco | 6,453.28 mi (10,385.55 km) |
