| Longford to Lapua | 1,268.82 mi (2,041.97 km) |
| Longford to Laukaa | 1,350.74 mi (2,173.80 km) |
| Longford to Lauritsala | 1,413.10 mi (2,274.17 km) |
| Longford to Lempaala | 1,266.43 mi (2,038.12 km) |
| Longford to Leppavirta | 1,409.47 mi (2,268.32 km) |
| Longford to Lieksa | 1,487.55 mi (2,393.99 km) |
| Longford to Lieto | 1,213.91 mi (1,953.61 km) |
| Longford to Liminka | 1,375.88 mi (2,214.27 km) |
| Longford to Liperi | 1,460.25 mi (2,350.04 km) |
| Longford to Lohja | 1,266.26 mi (2,037.85 km) |
| Longford to Loimaa | 1,238.15 mi (1,992.61 km) |
| Longford to Loviisa | 1,341.38 mi (2,158.74 km) |
| Longford to Mantsala | 1,311.60 mi (2,110.81 km) |
| Longford to Mariehamn | 1,124.30 mi (1,809.39 km) |
| Longford to Masku | 1,202.99 mi (1,936.03 km) |
