| Siena to Saint-Nazaire | 711.61 mi (1,145.22 km) |
| Siena to Saint-Omer | 666.83 mi (1,073.15 km) |
| Siena to Saint-Orens-de-Gameville | 491.53 mi (791.04 km) |
| Siena to Saint-Ouen | 578.16 mi (930.45 km) |
| Siena to Saint-Ouen-l'Aumone | 591.77 mi (952.36 km) |
| Siena to Saint-Paul-les-Dax | 620.51 mi (998.62 km) |
| Siena to Saint-Paul-Trois-Chateaux | 334.66 mi (538.58 km) |
| Siena to Saint-Philbert-de-Grand-Lieu | 680.93 mi (1,095.85 km) |
| Siena to Saint-Pierre-des-Corps | 585.99 mi (943.05 km) |
| Siena to Saint-Pierre-du-Mont | 593.72 mi (955.51 km) |
| Siena to Saint-Pierre-du-Perray | 559.64 mi (900.65 km) |
| Siena to Saint-Pol-sur-Mer | 678.81 mi (1,092.44 km) |
| Siena to Saint-Priest | 354.89 mi (571.14 km) |
| Siena to Saint-Quentin | 590.53 mi (950.36 km) |
| Siena to Saint-Rambert | 380.90 mi (613.00 km) |
