| Merthyr Tudful to Sanary-sur-Mer | 733.04 mi (1,179.71 km) |
| Merthyr Tudful to Sannois | 313.49 mi (504.51 km) |
| Merthyr Tudful to Saran | 351.27 mi (565.31 km) |
| Merthyr Tudful to Sarcelles | 316.77 mi (509.80 km) |
| Merthyr Tudful to Sarlat-la-Caneda | 518.17 mi (833.92 km) |
| Merthyr Tudful to Sarrebourg | 505.09 mi (812.86 km) |
| Merthyr Tudful to Sarreguemines | 494.01 mi (795.03 km) |
| Merthyr Tudful to Sartrouville | 311.81 mi (501.81 km) |
| Merthyr Tudful to Sarzeau | 292.55 mi (470.81 km) |
| Merthyr Tudful to Sassenage | 612.00 mi (984.92 km) |
| Merthyr Tudful to Saumur | 343.25 mi (552.41 km) |
| Merthyr Tudful to Savenay | 309.51 mi (498.11 km) |
| Merthyr Tudful to Saverne | 517.27 mi (832.47 km) |
| Merthyr Tudful to Savigny-le-Temple | 342.23 mi (550.77 km) |
| Merthyr Tudful to Savigny-sur-Orge | 329.75 mi (530.68 km) |
