| Castaic to Lapua | 5,378.55 mi (8,655.94 km) |
| Castaic to Laukaa | 5,458.63 mi (8,784.82 km) |
| Castaic to Lauritsala | 5,576.24 mi (8,974.10 km) |
| Castaic to Lempaala | 5,488.69 mi (8,833.19 km) |
| Castaic to Leppavirta | 5,481.98 mi (8,822.39 km) |
| Castaic to Lieksa | 5,462.69 mi (8,791.36 km) |
| Castaic to Lieto | 5,514.25 mi (8,874.32 km) |
| Castaic to Liminka | 5,306.70 mi (8,540.31 km) |
| Castaic to Liperi | 5,502.52 mi (8,855.45 km) |
| Castaic to Lohja | 5,557.56 mi (8,944.02 km) |
| Castaic to Loimaa | 5,504.40 mi (8,858.47 km) |
| Castaic to Loviisa | 5,581.59 mi (8,982.71 km) |
| Castaic to Mantsala | 5,555.90 mi (8,941.35 km) |
| Castaic to Mariehamn | 5,490.93 mi (8,836.79 km) |
| Castaic to Masku | 5,503.81 mi (8,857.53 km) |
