| Siran to Lapua | 1,708.13 mi (2,748.97 km) |
| Siran to Laukaa | 1,630.46 mi (2,623.96 km) |
| Siran to Lauritsala | 1,514.66 mi (2,437.60 km) |
| Siran to Lempaala | 1,597.72 mi (2,571.27 km) |
| Siran to Leppavirta | 1,611.27 mi (2,593.08 km) |
| Siran to Lieksa | 1,641.01 mi (2,640.94 km) |
| Siran to Lieto | 1,573.91 mi (2,532.96 km) |
| Siran to Liminka | 1,787.01 mi (2,875.91 km) |
| Siran to Liperi | 1,595.91 mi (2,568.36 km) |
| Siran to Lohja | 1,529.25 mi (2,461.09 km) |
| Siran to Loimaa | 1,582.60 mi (2,546.95 km) |
| Siran to Loviisa | 1,505.22 mi (2,422.42 km) |
| Siran to Mantsala | 1,530.56 mi (2,463.20 km) |
| Siran to Mariehamn | 1,603.74 mi (2,580.97 km) |
| Siran to Masku | 1,584.70 mi (2,550.33 km) |
