| Siena to Saint-Brice-sous-Foret | 581.09 mi (935.18 km) |
| Siena to Saint-Brieuc | 765.18 mi (1,231.44 km) |
| Siena to Saint-Chamas | 316.25 mi (508.96 km) |
| Siena to Saint-Chamond | 367.92 mi (592.11 km) |
| Siena to Saint-Claude | 341.47 mi (549.54 km) |
| Siena to Saint-Cloud | 579.15 mi (932.05 km) |
| Siena to Saint-Cyprien | 423.48 mi (681.53 km) |
| Siena to Saint-Cyr-l'Ecole | 583.17 mi (938.53 km) |
| Siena to Saint-Cyr-sur-Loire | 588.46 mi (947.03 km) |
| Siena to Saint-Cyr-sur-Mer | 283.07 mi (455.55 km) |
| Siena to Saint-Denis | 578.46 mi (930.95 km) |
| Siena to Saint-Die-des-Vosges | 402.68 mi (648.06 km) |
| Siena to Saint-Dizier | 478.19 mi (769.58 km) |
| Siena to Saint-Doulchard | 507.90 mi (817.38 km) |
| Siena to Saint-Egreve | 309.03 mi (497.33 km) |
