| Merthyr Tudful to Prokuplje | 1,296.54 mi (2,086.58 km) |
| Merthyr Tudful to Raca | 1,232.56 mi (1,983.61 km) |
| Merthyr Tudful to Raska | 1,254.63 mi (2,019.13 km) |
| Merthyr Tudful to Razanj | 1,277.84 mi (2,056.49 km) |
| Merthyr Tudful to Rekovac | 1,252.88 mi (2,016.32 km) |
| Merthyr Tudful to Ruma | 1,156.32 mi (1,860.92 km) |
| Merthyr Tudful to Sabac | 1,159.61 mi (1,866.22 km) |
| Merthyr Tudful to Secanj | 1,182.23 mi (1,902.62 km) |
| Merthyr Tudful to Senta | 1,134.20 mi (1,825.33 km) |
| Merthyr Tudful to Sid | 1,127.22 mi (1,814.09 km) |
| Merthyr Tudful to Sjenica | 1,230.72 mi (1,980.65 km) |
| Merthyr Tudful to Smederevo | 1,214.14 mi (1,953.97 km) |
| Merthyr Tudful to Smederevska Palanka | 1,226.52 mi (1,973.89 km) |
| Merthyr Tudful to Sokobanja | 1,291.53 mi (2,078.52 km) |
| Merthyr Tudful to Sombor | 1,098.59 mi (1,768.00 km) |
