| Hockessin to Octeville | 3,548.84 mi (5,711.31 km) |
| Hockessin to Oignies | 3,722.21 mi (5,990.33 km) |
| Hockessin to Oissel | 3,670.98 mi (5,907.86 km) |
| Hockessin to Olivet | 3,742.80 mi (6,023.45 km) |
| Hockessin to Ollioules | 4,052.85 mi (6,522.44 km) |
| Hockessin to Olonne-sur-Mer | 3,616.43 mi (5,820.09 km) |
| Hockessin to Oloron-Sainte-Marie | 3,757.90 mi (6,047.75 km) |
| Hockessin to Onet Village | 3,869.80 mi (6,227.84 km) |
| Hockessin to Onnaing | 3,749.05 mi (6,033.51 km) |
| Hockessin to Orange | 3,975.57 mi (6,398.07 km) |
| Hockessin to Orchies | 3,732.35 mi (6,006.64 km) |
| Hockessin to Orleans | 3,742.15 mi (6,022.41 km) |
| Hockessin to Orly | 3,740.91 mi (6,020.41 km) |
| Hockessin to Ormesson-sur-Marne | 3,745.97 mi (6,028.56 km) |
| Hockessin to Orsay | 3,733.40 mi (6,008.33 km) |
