| Castel San Pietro Terme to Lapua | 1,360.78 mi (2,189.96 km) |
| Castel San Pietro Terme to Laukaa | 1,371.08 mi (2,206.55 km) |
| Castel San Pietro Terme to Lauritsala | 1,337.90 mi (2,153.15 km) |
| Castel San Pietro Terme to Lempaala | 1,269.43 mi (2,042.95 km) |
| Castel San Pietro Terme to Leppavirta | 1,407.58 mi (2,265.29 km) |
| Castel San Pietro Terme to Lieksa | 1,495.07 mi (2,406.09 km) |
| Castel San Pietro Terme to Lieto | 1,199.17 mi (1,929.88 km) |
| Castel San Pietro Terme to Liminka | 1,507.03 mi (2,425.34 km) |
| Castel San Pietro Terme to Liperi | 1,440.10 mi (2,317.62 km) |
| Castel San Pietro Terme to Lohja | 1,210.69 mi (1,948.42 km) |
| Castel San Pietro Terme to Loimaa | 1,230.10 mi (1,979.66 km) |
| Castel San Pietro Terme to Loviisa | 1,263.12 mi (2,032.79 km) |
| Castel San Pietro Terme to Mantsala | 1,255.68 mi (2,020.82 km) |
| Castel San Pietro Terme to Mariehamn | 1,138.69 mi (1,832.55 km) |
| Castel San Pietro Terme to Masku | 1,198.27 mi (1,928.43 km) |
