| Porthcawl to Saint-Lo | 199.64 mi (321.29 km) |
| Porthcawl to Saint-Loubes | 477.56 mi (768.55 km) |
| Porthcawl to Saint-Louis | 571.13 mi (919.14 km) |
| Porthcawl to Saint-Lys | 595.11 mi (957.73 km) |
| Porthcawl to Saint-Malo | 209.24 mi (336.73 km) |
| Porthcawl to Saint-Mande | 325.91 mi (524.50 km) |
| Porthcawl to Saint-Martin-Boulogne | 236.65 mi (380.86 km) |
| Porthcawl to Saint-Martin-d'Heres | 614.65 mi (989.18 km) |
| Porthcawl to Saint-Martin-de-Crau | 670.32 mi (1,078.78 km) |
| Porthcawl to Saint-Maur-des-Fosses | 330.63 mi (532.10 km) |
| Porthcawl to Saint-Maurice | 327.48 mi (527.02 km) |
| Porthcawl to Saint-Max | 478.38 mi (769.88 km) |
| Porthcawl to Saint-Maximin-la-Sainte-Baume | 710.55 mi (1,143.53 km) |
| Porthcawl to Saint-Medard-en-Jalles | 474.95 mi (764.36 km) |
| Porthcawl to Saint-Michel-sur-Orge | 330.55 mi (531.97 km) |
