| Upper Grand Lagoon to Lapua | 4,923.18 mi (7,923.10 km) |
| Upper Grand Lagoon to Laukaa | 5,022.67 mi (8,083.20 km) |
| Upper Grand Lagoon to Lauritsala | 5,137.17 mi (8,267.47 km) |
| Upper Grand Lagoon to Lempaala | 5,002.10 mi (8,050.10 km) |
| Upper Grand Lagoon to Leppavirta | 5,068.80 mi (8,157.45 km) |
| Upper Grand Lagoon to Lieksa | 5,093.60 mi (8,197.36 km) |
| Upper Grand Lagoon to Lieto | 4,993.51 mi (8,036.28 km) |
| Upper Grand Lagoon to Liminka | 4,920.83 mi (7,919.31 km) |
| Upper Grand Lagoon to Liperi | 5,108.94 mi (8,222.04 km) |
| Upper Grand Lagoon to Lohja | 5,049.72 mi (8,126.74 km) |
| Upper Grand Lagoon to Loimaa | 4,998.92 mi (8,044.98 km) |
| Upper Grand Lagoon to Loviisa | 5,104.35 mi (8,214.65 km) |
| Upper Grand Lagoon to Mantsala | 5,071.66 mi (8,162.04 km) |
| Upper Grand Lagoon to Mariehamn | 4,932.13 mi (7,937.50 km) |
| Upper Grand Lagoon to Masku | 4,980.78 mi (8,015.79 km) |
