| Sussex to Octeville | 3,917.29 mi (6,304.27 km) |
| Sussex to Oignies | 4,065.22 mi (6,542.35 km) |
| Sussex to Oissel | 4,033.28 mi (6,490.94 km) |
| Sussex to Olivet | 4,118.31 mi (6,627.78 km) |
| Sussex to Ollioules | 4,459.99 mi (7,177.67 km) |
| Sussex to Olonne-sur-Mer | 4,019.49 mi (6,468.74 km) |
| Sussex to Oloron-Sainte-Marie | 4,190.64 mi (6,744.18 km) |
| Sussex to Onet Village | 4,278.52 mi (6,885.61 km) |
| Sussex to Onnaing | 4,090.82 mi (6,583.54 km) |
| Sussex to Orange | 4,377.54 mi (7,044.98 km) |
| Sussex to Orchies | 4,074.41 mi (6,557.14 km) |
| Sussex to Orleans | 4,117.22 mi (6,626.02 km) |
| Sussex to Orly | 4,105.13 mi (6,606.56 km) |
| Sussex to Ormesson-sur-Marne | 4,109.20 mi (6,613.13 km) |
| Sussex to Orsay | 4,098.87 mi (6,596.49 km) |
