| Challans to Sin-le-Noble | 333.07 mi (536.02 km) |
| Challans to Six-Fours-les-Plages | 456.35 mi (734.43 km) |
| Challans to Soissons | 296.97 mi (477.92 km) |
| Challans to Soisy-sous-Montmorency | 243.48 mi (391.84 km) |
| Challans to Sollies-Pont | 461.64 mi (742.93 km) |
| Challans to Somain | 338.06 mi (544.06 km) |
| Challans to Sorgues | 381.39 mi (613.79 km) |
| Challans to Sotteville-les-Rouen | 223.76 mi (360.10 km) |
| Challans to Soyaux | 129.56 mi (208.51 km) |
| Challans to Stains | 245.06 mi (394.39 km) |
| Challans to Stiring-Wendel | 437.95 mi (704.80 km) |
| Challans to Strasbourg | 462.84 mi (744.88 km) |
| Challans to Sucy-en-Brie | 243.58 mi (392.00 km) |
| Challans to Suresnes | 235.82 mi (379.52 km) |
| Challans to Talant | 325.47 mi (523.79 km) |
