| Isernia to Saint-Brice-sous-Foret | 769.50 mi (1,238.39 km) |
| Isernia to Saint-Brieuc | 954.43 mi (1,536.00 km) |
| Isernia to Saint-Chamas | 486.99 mi (783.73 km) |
| Isernia to Saint-Chamond | 555.23 mi (893.56 km) |
| Isernia to Saint-Claude | 531.13 mi (854.77 km) |
| Isernia to Saint-Cloud | 767.95 mi (1,235.90 km) |
| Isernia to Saint-Cyprien | 579.61 mi (932.79 km) |
| Isernia to Saint-Cyr-l'Ecole | 772.16 mi (1,242.67 km) |
| Isernia to Saint-Cyr-sur-Loire | 777.62 mi (1,251.46 km) |
| Isernia to Saint-Cyr-sur-Mer | 448.59 mi (721.94 km) |
| Isernia to Saint-Denis | 766.99 mi (1,234.35 km) |
| Isernia to Saint-Die-des-Vosges | 582.73 mi (937.81 km) |
| Isernia to Saint-Dizier | 663.45 mi (1,067.73 km) |
| Isernia to Saint-Doulchard | 697.41 mi (1,122.37 km) |
| Isernia to Saint-Egreve | 496.88 mi (799.65 km) |
