| Merthyr Tudful to Luban | 803.07 mi (1,292.42 km) |
| Merthyr Tudful to Lubartow | 1,109.04 mi (1,784.82 km) |
| Merthyr Tudful to Lubawa | 973.29 mi (1,566.36 km) |
| Merthyr Tudful to Lubin | 838.57 mi (1,349.54 km) |
| Merthyr Tudful to Lublin | 1,110.63 mi (1,787.39 km) |
| Merthyr Tudful to Lubliniec | 953.99 mi (1,535.30 km) |
| Merthyr Tudful to Lubon | 859.29 mi (1,382.89 km) |
| Merthyr Tudful to Lubsko | 782.26 mi (1,258.93 km) |
| Merthyr Tudful to Lukow | 1,094.18 mi (1,760.91 km) |
| Merthyr Tudful to Lwowek Slaski | 815.65 mi (1,312.66 km) |
| Merthyr Tudful to Makow Mazowiecki | 1,032.02 mi (1,660.87 km) |
| Merthyr Tudful to Malbork | 943.48 mi (1,518.38 km) |
| Merthyr Tudful to Marki | 1,036.19 mi (1,667.59 km) |
| Merthyr Tudful to Miastko | 860.27 mi (1,384.48 km) |
| Merthyr Tudful to Miechow | 1,016.90 mi (1,636.54 km) |
