| Colwyn Bay to Seysses | 714.12 mi (1,149.27 km) |
| Colwyn Bay to Sin-le-Noble | 354.08 mi (569.84 km) |
| Colwyn Bay to Six-Fours-les-Plages | 827.77 mi (1,332.17 km) |
| Colwyn Bay to Soissons | 405.67 mi (652.86 km) |
| Colwyn Bay to Soisy-sous-Montmorency | 394.71 mi (635.22 km) |
| Colwyn Bay to Sollies-Pont | 827.75 mi (1,332.13 km) |
| Colwyn Bay to Somain | 360.18 mi (579.66 km) |
| Colwyn Bay to Sorgues | 750.07 mi (1,207.12 km) |
| Colwyn Bay to Sotteville-les-Rouen | 338.40 mi (544.61 km) |
| Colwyn Bay to Soyaux | 556.55 mi (895.69 km) |
| Colwyn Bay to Stains | 399.12 mi (642.32 km) |
| Colwyn Bay to Stiring-Wendel | 538.83 mi (867.16 km) |
| Colwyn Bay to Strasbourg | 594.01 mi (955.97 km) |
| Colwyn Bay to Sucy-en-Brie | 412.81 mi (664.35 km) |
| Colwyn Bay to Suresnes | 398.85 mi (641.88 km) |
