| Siena to Lapua | 1,436.18 mi (2,311.31 km) |
| Siena to Laukaa | 1,445.74 mi (2,326.69 km) |
| Siena to Lauritsala | 1,411.19 mi (2,271.10 km) |
| Siena to Lempaala | 1,344.31 mi (2,163.46 km) |
| Siena to Leppavirta | 1,481.76 mi (2,384.67 km) |
| Siena to Lieksa | 1,568.99 mi (2,525.05 km) |
| Siena to Lieto | 1,274.17 mi (2,050.57 km) |
| Siena to Liminka | 1,582.39 mi (2,546.60 km) |
| Siena to Liperi | 1,513.82 mi (2,436.26 km) |
| Siena to Lohja | 1,285.10 mi (2,068.17 km) |
| Siena to Loimaa | 1,305.03 mi (2,100.24 km) |
| Siena to Loviisa | 1,336.83 mi (2,151.42 km) |
| Siena to Mantsala | 1,329.82 mi (2,140.14 km) |
| Siena to Mariehamn | 1,214.19 mi (1,954.05 km) |
| Siena to Masku | 1,273.38 mi (2,049.30 km) |
