| Porthcawl to Saint-Esteve | 678.54 mi (1,092.00 km) |
| Porthcawl to Saint-Etienne | 557.50 mi (897.21 km) |
| Porthcawl to Saint-Etienne-du-Rouvray | 256.09 mi (412.13 km) |
| Porthcawl to Saint-Fargeau | 343.49 mi (552.79 km) |
| Porthcawl to Saint-Fons | 557.36 mi (896.98 km) |
| Porthcawl to Saint-Gaudens | 614.01 mi (988.16 km) |
| Porthcawl to Saint-Gely-du-Fesc | 640.79 mi (1,031.25 km) |
| Porthcawl to Saint-Genis-Laval | 556.10 mi (894.95 km) |
| Porthcawl to Saint-Genis-Pouilly | 569.95 mi (917.25 km) |
| Porthcawl to Saint-Germain-en-Laye | 311.73 mi (501.68 km) |
| Porthcawl to Saint-Germain-les-Arpajon | 330.50 mi (531.89 km) |
| Porthcawl to Saint-Gilles | 657.82 mi (1,058.66 km) |
| Porthcawl to Saint-Gratien | 315.66 mi (508.00 km) |
| Porthcawl to Saint-Gregoire | 246.72 mi (397.06 km) |
| Porthcawl to Saint-Herblain | 308.81 mi (496.99 km) |
