| Porthcawl to Seysses | 598.56 mi (963.29 km) |
| Porthcawl to Sin-le-Noble | 306.07 mi (492.57 km) |
| Porthcawl to Six-Fours-les-Plages | 729.35 mi (1,173.78 km) |
| Porthcawl to Soissons | 340.85 mi (548.55 km) |
| Porthcawl to Soisy-sous-Montmorency | 315.64 mi (507.98 km) |
| Porthcawl to Sollies-Pont | 730.61 mi (1,175.81 km) |
| Porthcawl to Somain | 313.23 mi (504.09 km) |
| Porthcawl to Sorgues | 650.82 mi (1,047.40 km) |
| Porthcawl to Sotteville-les-Rouen | 254.29 mi (409.25 km) |
| Porthcawl to Soyaux | 440.76 mi (709.33 km) |
| Porthcawl to Stains | 320.25 mi (515.39 km) |
| Porthcawl to Stiring-Wendel | 493.53 mi (794.26 km) |
| Porthcawl to Strasbourg | 544.87 mi (876.88 km) |
| Porthcawl to Sucy-en-Brie | 332.70 mi (535.43 km) |
| Porthcawl to Suresnes | 317.51 mi (510.99 km) |
