| Conwy to Seysses | 715.40 mi (1,151.32 km) |
| Conwy to Sin-le-Noble | 358.28 mi (576.60 km) |
| Conwy to Six-Fours-les-Plages | 830.35 mi (1,336.32 km) |
| Conwy to Soissons | 409.44 mi (658.92 km) |
| Conwy to Soisy-sous-Montmorency | 397.93 mi (640.41 km) |
| Conwy to Sollies-Pont | 830.40 mi (1,336.40 km) |
| Conwy to Somain | 364.43 mi (586.49 km) |
| Conwy to Sorgues | 752.58 mi (1,211.15 km) |
| Conwy to Sotteville-les-Rouen | 341.32 mi (549.30 km) |
| Conwy to Soyaux | 557.76 mi (897.62 km) |
| Conwy to Stains | 402.36 mi (647.54 km) |
| Conwy to Stiring-Wendel | 543.29 mi (874.34 km) |
| Conwy to Strasbourg | 598.41 mi (963.04 km) |
| Conwy to Sucy-en-Brie | 416.02 mi (669.51 km) |
| Conwy to Suresnes | 401.99 mi (646.93 km) |
