| Alton to Lagoa | 1,035.60 mi (1,666.63 km) |
| Alton to Lagoa | 1,514.21 mi (2,436.89 km) |
| Alton to Lagos | 1,041.51 mi (1,676.15 km) |
| Alton to Lamego | 766.76 mi (1,233.98 km) |
| Alton to Leiria | 872.99 mi (1,404.95 km) |
| Alton to Lisbon | 945.56 mi (1,521.74 km) |
| Alton to Loule | 1,026.88 mi (1,652.61 km) |
| Alton to Loures | 939.00 mi (1,511.17 km) |
| Alton to Lourinha | 916.30 mi (1,474.65 km) |
| Alton to Lousa | 838.62 mi (1,349.62 km) |
| Alton to Lousada | 763.11 mi (1,228.11 km) |
| Alton to Macedo de Cavaleiros | 722.19 mi (1,162.25 km) |
| Alton to Mafamude | 782.62 mi (1,259.51 km) |
| Alton to Mafra | 935.54 mi (1,505.61 km) |
| Alton to Maia | 775.53 mi (1,248.10 km) |
