| Merthyr Tudful to Saint-Lo | 207.61 mi (334.12 km) |
| Merthyr Tudful to Saint-Loubes | 490.59 mi (789.53 km) |
| Merthyr Tudful to Saint-Louis | 566.63 mi (911.90 km) |
| Merthyr Tudful to Saint-Lys | 606.53 mi (976.12 km) |
| Merthyr Tudful to Saint-Malo | 222.10 mi (357.43 km) |
| Merthyr Tudful to Saint-Mande | 324.86 mi (522.81 km) |
| Merthyr Tudful to Saint-Martin-Boulogne | 227.80 mi (366.62 km) |
| Merthyr Tudful to Saint-Martin-d'Heres | 617.11 mi (993.15 km) |
| Merthyr Tudful to Saint-Martin-de-Crau | 676.26 mi (1,088.33 km) |
| Merthyr Tudful to Saint-Maur-des-Fosses | 329.58 mi (530.41 km) |
| Merthyr Tudful to Saint-Maurice | 326.48 mi (525.43 km) |
| Merthyr Tudful to Saint-Max | 472.47 mi (760.37 km) |
| Merthyr Tudful to Saint-Maximin-la-Sainte-Baume | 715.32 mi (1,151.19 km) |
| Merthyr Tudful to Saint-Medard-en-Jalles | 488.52 mi (786.19 km) |
| Merthyr Tudful to Saint-Michel-sur-Orge | 330.50 mi (531.89 km) |
