| Sessa Aurunca to Octeville | 949.11 mi (1,527.44 km) |
| Sessa Aurunca to Oignies | 825.50 mi (1,328.51 km) |
| Sessa Aurunca to Oissel | 836.72 mi (1,346.57 km) |
| Sessa Aurunca to Olivet | 747.50 mi (1,202.99 km) |
| Sessa Aurunca to Ollioules | 434.22 mi (698.81 km) |
| Sessa Aurunca to Olonne-sur-Mer | 861.67 mi (1,386.73 km) |
| Sessa Aurunca to Oloron-Sainte-Marie | 755.28 mi (1,215.51 km) |
| Sessa Aurunca to Onet Village | 613.62 mi (987.53 km) |
| Sessa Aurunca to Onnaing | 803.29 mi (1,292.77 km) |
| Sessa Aurunca to Orange | 504.62 mi (812.10 km) |
| Sessa Aurunca to Orchies | 818.23 mi (1,316.82 km) |
| Sessa Aurunca to Orleans | 748.65 mi (1,204.83 km) |
| Sessa Aurunca to Orly | 764.83 mi (1,230.87 km) |
| Sessa Aurunca to Ormesson-sur-Marne | 761.46 mi (1,225.46 km) |
| Sessa Aurunca to Orsay | 770.25 mi (1,239.59 km) |
