| Merthyr Tudful to Srbobran | 1,135.09 mi (1,826.76 km) |
| Merthyr Tudful to Sremska Kamenica | 1,148.55 mi (1,848.41 km) |
| Merthyr Tudful to Sremska Mitrovica | 1,148.29 mi (1,847.99 km) |
| Merthyr Tudful to Sremski Karlovci | 1,153.20 mi (1,855.89 km) |
| Merthyr Tudful to Stara Pazova | 1,170.75 mi (1,884.14 km) |
| Merthyr Tudful to Subotica | 1,110.74 mi (1,787.56 km) |
| Merthyr Tudful to Surcin | 1,182.32 mi (1,902.76 km) |
| Merthyr Tudful to Surdulica | 1,342.23 mi (2,160.11 km) |
| Merthyr Tudful to Svilajnac | 1,242.14 mi (1,999.03 km) |
| Merthyr Tudful to Svrljig | 1,311.01 mi (2,109.86 km) |
| Merthyr Tudful to Temerin | 1,143.37 mi (1,840.08 km) |
| Merthyr Tudful to Titel | 1,168.27 mi (1,880.16 km) |
| Merthyr Tudful to Topola | 1,219.15 mi (1,962.04 km) |
| Merthyr Tudful to Trgoviste | 1,353.47 mi (2,178.19 km) |
| Merthyr Tudful to Trstenik | 1,257.06 mi (2,023.04 km) |
