| Merthyr Tudful to La Riche | 350.94 mi (564.78 km) |
| Merthyr Tudful to La Roche-sur-Foron | 588.58 mi (947.23 km) |
| Merthyr Tudful to La Roche-sur-Yon | 361.35 mi (581.53 km) |
| Merthyr Tudful to La Rochelle | 398.72 mi (641.68 km) |
| Merthyr Tudful to La Seyne-sur-Mer | 736.35 mi (1,185.04 km) |
| Merthyr Tudful to La Teste-de-Buch | 502.72 mi (809.04 km) |
| Merthyr Tudful to La Trinite | 741.79 mi (1,193.79 km) |
| Merthyr Tudful to La Valette-du-Var | 736.86 mi (1,185.86 km) |
| Merthyr Tudful to Lamballe | 229.42 mi (369.22 km) |
| Merthyr Tudful to Lambersart | 287.23 mi (462.25 km) |
| Merthyr Tudful to Lambesc | 687.30 mi (1,106.11 km) |
| Merthyr Tudful to Lamorlaye | 312.12 mi (502.31 km) |
| Merthyr Tudful to Lancon-Provence | 687.31 mi (1,106.12 km) |
| Merthyr Tudful to Landerneau | 230.72 mi (371.31 km) |
| Merthyr Tudful to Landivisiau | 225.51 mi (362.93 km) |
