| Caerphilly to Seysses | 596.63 mi (960.18 km) |
| Caerphilly to Sin-le-Noble | 287.86 mi (463.27 km) |
| Caerphilly to Six-Fours-les-Plages | 721.42 mi (1,161.01 km) |
| Caerphilly to Soissons | 325.03 mi (523.08 km) |
| Caerphilly to Soisy-sous-Montmorency | 302.15 mi (486.26 km) |
| Caerphilly to Sollies-Pont | 722.33 mi (1,162.48 km) |
| Caerphilly to Somain | 294.95 mi (474.67 km) |
| Caerphilly to Sorgues | 643.03 mi (1,034.86 km) |
| Caerphilly to Sotteville-les-Rouen | 241.41 mi (388.51 km) |
| Caerphilly to Soyaux | 438.81 mi (706.19 km) |
| Caerphilly to Stains | 306.74 mi (493.65 km) |
| Caerphilly to Stiring-Wendel | 475.76 mi (765.66 km) |
| Caerphilly to Strasbourg | 527.64 mi (849.16 km) |
| Caerphilly to Sucy-en-Brie | 319.51 mi (514.20 km) |
| Caerphilly to Suresnes | 304.49 mi (490.02 km) |
