| Merthyr Tudful to Kursumlija | 1,287.32 mi (2,071.74 km) |
| Merthyr Tudful to Lacarak | 1,145.29 mi (1,843.17 km) |
| Merthyr Tudful to Lajkovac | 1,193.81 mi (1,921.26 km) |
| Merthyr Tudful to Lapovo | 1,239.28 mi (1,994.43 km) |
| Merthyr Tudful to Lebane | 1,315.44 mi (2,116.99 km) |
| Merthyr Tudful to Leskovac | 1,320.80 mi (2,125.62 km) |
| Merthyr Tudful to Ljig | 1,202.31 mi (1,934.93 km) |
| Merthyr Tudful to Ljubovija | 1,168.25 mi (1,880.12 km) |
| Merthyr Tudful to Loznica | 1,148.81 mi (1,848.83 km) |
| Merthyr Tudful to Lucani | 1,211.91 mi (1,950.37 km) |
| Merthyr Tudful to Majdanpek | 1,265.01 mi (2,035.84 km) |
| Merthyr Tudful to Mali Idos | 1,124.08 mi (1,809.03 km) |
| Merthyr Tudful to Mali Zvornik | 1,149.71 mi (1,850.28 km) |
| Merthyr Tudful to Malo Crnice | 1,232.43 mi (1,983.40 km) |
| Merthyr Tudful to Medveda | 1,312.76 mi (2,112.68 km) |
