| Merthyr Tudful to Santa Venerina | 1,322.82 mi (2,128.87 km) |
| Merthyr Tudful to Santeramo in Colle | 1,216.67 mi (1,958.04 km) |
| Merthyr Tudful to Santo Stefano di Magra | 805.72 mi (1,296.69 km) |
| Merthyr Tudful to Santo Stino di Livenza | 838.84 mi (1,349.99 km) |
| Merthyr Tudful to Sarezzo | 746.92 mi (1,202.05 km) |
| Merthyr Tudful to Sarno | 1,138.22 mi (1,831.79 km) |
| Merthyr Tudful to Saronno | 705.11 mi (1,134.77 km) |
| Merthyr Tudful to Sarzana | 809.69 mi (1,303.07 km) |
| Merthyr Tudful to Sassari | 948.64 mi (1,526.69 km) |
| Merthyr Tudful to Sasso Marconi | 842.13 mi (1,355.28 km) |
| Merthyr Tudful to Sassuolo | 818.14 mi (1,316.67 km) |
| Merthyr Tudful to Sava | 1,265.84 mi (2,037.17 km) |
| Merthyr Tudful to Saviano | 1,129.60 mi (1,817.91 km) |
| Merthyr Tudful to Savigliano | 703.82 mi (1,132.69 km) |
| Merthyr Tudful to Savignano sul Panaro | 830.35 mi (1,336.32 km) |
