| Somma Vesuviana to Octeville | 985.30 mi (1,585.69 km) |
| Somma Vesuviana to Oignies | 861.06 mi (1,385.74 km) |
| Somma Vesuviana to Oissel | 872.87 mi (1,404.74 km) |
| Somma Vesuviana to Olivet | 783.68 mi (1,261.21 km) |
| Somma Vesuviana to Ollioules | 467.74 mi (752.76 km) |
| Somma Vesuviana to Olonne-sur-Mer | 896.98 mi (1,443.55 km) |
| Somma Vesuviana to Oloron-Sainte-Marie | 787.36 mi (1,267.14 km) |
| Somma Vesuviana to Onet Village | 647.96 mi (1,042.79 km) |
| Somma Vesuviana to Onnaing | 838.72 mi (1,349.79 km) |
| Somma Vesuviana to Orange | 539.35 mi (868.00 km) |
| Somma Vesuviana to Orchies | 853.73 mi (1,373.94 km) |
| Somma Vesuviana to Orleans | 784.83 mi (1,263.06 km) |
| Somma Vesuviana to Orly | 800.96 mi (1,289.03 km) |
| Somma Vesuviana to Ormesson-sur-Marne | 797.58 mi (1,283.59 km) |
| Somma Vesuviana to Orsay | 806.40 mi (1,297.78 km) |
