| Siena to Saint-Esteve | 430.72 mi (693.18 km) |
| Siena to Saint-Etienne | 372.51 mi (599.50 km) |
| Siena to Saint-Etienne-du-Rouvray | 641.82 mi (1,032.90 km) |
| Siena to Saint-Fargeau | 554.48 mi (892.34 km) |
| Siena to Saint-Fons | 359.22 mi (578.10 km) |
| Siena to Saint-Gaudens | 534.02 mi (859.42 km) |
| Siena to Saint-Gely-du-Fesc | 377.88 mi (608.13 km) |
| Siena to Saint-Genis-Laval | 361.49 mi (581.76 km) |
| Siena to Saint-Genis-Pouilly | 329.51 mi (530.30 km) |
| Siena to Saint-Germain-en-Laye | 586.18 mi (943.36 km) |
| Siena to Saint-Germain-les-Arpajon | 567.64 mi (913.53 km) |
| Siena to Saint-Gilles | 346.63 mi (557.85 km) |
| Siena to Saint-Gratien | 582.55 mi (937.52 km) |
| Siena to Saint-Gregoire | 709.76 mi (1,142.25 km) |
| Siena to Saint-Herblain | 685.13 mi (1,102.60 km) |
