| South River to Lapua | 3,991.15 mi (6,423.13 km) |
| South River to Laukaa | 4,091.39 mi (6,584.46 km) |
| South River to Lauritsala | 4,203.72 mi (6,765.23 km) |
| South River to Lempaala | 4,065.26 mi (6,542.40 km) |
| South River to Leppavirta | 4,139.62 mi (6,662.08 km) |
| South River to Lieksa | 4,169.89 mi (6,710.78 km) |
| South River to Lieto | 4,053.23 mi (6,523.05 km) |
| South River to Liminka | 3,998.09 mi (6,434.30 km) |
| South River to Liperi | 4,181.61 mi (6,729.66 km) |
| South River to Lohja | 4,110.02 mi (6,614.44 km) |
| South River to Loimaa | 4,060.11 mi (6,534.12 km) |
| South River to Loviisa | 4,167.09 mi (6,706.29 km) |
| South River to Mantsala | 4,134.10 mi (6,653.20 km) |
| South River to Mariehamn | 3,989.01 mi (6,419.68 km) |
| South River to Masku | 4,040.44 mi (6,502.45 km) |
