| Blacksburg to Octeville | 3,859.45 mi (6,211.18 km) |
| Blacksburg to Oignies | 4,031.74 mi (6,488.46 km) |
| Blacksburg to Oissel | 3,981.41 mi (6,407.46 km) |
| Blacksburg to Olivet | 4,053.73 mi (6,523.85 km) |
| Blacksburg to Ollioules | 4,364.19 mi (7,023.48 km) |
| Blacksburg to Olonne-sur-Mer | 3,927.78 mi (6,321.16 km) |
| Blacksburg to Oloron-Sainte-Marie | 4,068.83 mi (6,548.15 km) |
| Blacksburg to Onet Village | 4,181.14 mi (6,728.89 km) |
| Blacksburg to Onnaing | 4,058.52 mi (6,531.56 km) |
| Blacksburg to Orange | 4,286.93 mi (6,899.15 km) |
| Blacksburg to Orchies | 4,041.83 mi (6,504.70 km) |
| Blacksburg to Orleans | 4,053.07 mi (6,522.79 km) |
| Blacksburg to Orly | 4,051.46 mi (6,520.20 km) |
| Blacksburg to Ormesson-sur-Marne | 4,056.49 mi (6,528.29 km) |
| Blacksburg to Orsay | 4,044.00 mi (6,508.19 km) |
