| Seia to Lapua | 2,000.29 mi (3,219.15 km) |
| Seia to Laukaa | 2,055.96 mi (3,308.76 km) |
| Seia to Lauritsala | 2,076.39 mi (3,341.62 km) |
| Seia to Lempaala | 1,954.72 mi (3,145.82 km) |
| Seia to Leppavirta | 2,109.11 mi (3,394.29 km) |
| Seia to Lieksa | 2,198.02 mi (3,537.38 km) |
| Seia to Lieto | 1,887.23 mi (3,037.20 km) |
| Seia to Liminka | 2,134.42 mi (3,435.02 km) |
| Seia to Liperi | 2,155.19 mi (3,468.44 km) |
| Seia to Lohja | 1,924.73 mi (3,097.55 km) |
| Seia to Loimaa | 1,917.74 mi (3,086.30 km) |
| Seia to Loviisa | 1,996.19 mi (3,212.55 km) |
| Seia to Mantsala | 1,974.87 mi (3,178.24 km) |
| Seia to Mariehamn | 1,800.83 mi (2,898.16 km) |
| Seia to Masku | 1,880.09 mi (3,025.70 km) |
