| Castanet-Tolosan to Lagoa | 1,467.51 mi (2,361.73 km) |
| Castanet-Tolosan to Lagos | 694.43 mi (1,117.57 km) |
| Castanet-Tolosan to Lamego | 503.69 mi (810.61 km) |
| Castanet-Tolosan to Leiria | 591.47 mi (951.88 km) |
| Castanet-Tolosan to Lisbon | 644.79 mi (1,037.68 km) |
| Castanet-Tolosan to Loule | 665.32 mi (1,070.73 km) |
| Castanet-Tolosan to Loures | 641.36 mi (1,032.17 km) |
| Castanet-Tolosan to Lourinha | 632.53 mi (1,017.96 km) |
| Castanet-Tolosan to Lousa | 553.71 mi (891.11 km) |
| Castanet-Tolosan to Lousada | 519.49 mi (836.03 km) |
| Castanet-Tolosan to Macedo de Cavaleiros | 451.61 mi (726.79 km) |
| Castanet-Tolosan to Mafamude | 541.69 mi (871.76 km) |
| Castanet-Tolosan to Mafra | 644.71 mi (1,037.55 km) |
| Castanet-Tolosan to Maia | 539.43 mi (868.13 km) |
| Castanet-Tolosan to Mangualde | 515.44 mi (829.52 km) |
