| Castano Primo to Lapua | 1,326.85 mi (2,135.35 km) |
| Castano Primo to Laukaa | 1,348.89 mi (2,170.83 km) |
| Castano Primo to Lauritsala | 1,329.71 mi (2,139.96 km) |
| Castano Primo to Lempaala | 1,245.06 mi (2,003.73 km) |
| Castano Primo to Leppavirta | 1,390.53 mi (2,237.84 km) |
| Castano Primo to Lieksa | 1,480.01 mi (2,381.85 km) |
| Castano Primo to Lieto | 1,173.78 mi (1,889.01 km) |
| Castano Primo to Liminka | 1,473.29 mi (2,371.04 km) |
| Castano Primo to Liperi | 1,427.31 mi (2,297.04 km) |
| Castano Primo to Lohja | 1,192.77 mi (1,919.58 km) |
| Castano Primo to Loimaa | 1,205.39 mi (1,939.89 km) |
| Castano Primo to Loviisa | 1,251.83 mi (2,014.62 km) |
| Castano Primo to Mantsala | 1,240.27 mi (1,996.03 km) |
| Castano Primo to Mariehamn | 1,104.66 mi (1,777.77 km) |
| Castano Primo to Masku | 1,171.17 mi (1,884.81 km) |
