| Issum to Lapua | 997.78 mi (1,605.78 km) |
| Issum to Laukaa | 1,043.38 mi (1,679.15 km) |
| Issum to Lauritsala | 1,056.39 mi (1,700.10 km) |
| Issum to Lempaala | 940.23 mi (1,513.16 km) |
| Issum to Leppavirta | 1,094.20 mi (1,760.95 km) |
| Issum to Lieksa | 1,184.10 mi (1,905.62 km) |
| Issum to Lieto | 871.04 mi (1,401.81 km) |
| Issum to Liminka | 1,139.08 mi (1,833.18 km) |
| Issum to Liperi | 1,138.65 mi (1,832.49 km) |
| Issum to Lohja | 905.63 mi (1,457.46 km) |
| Issum to Loimaa | 902.16 mi (1,451.89 km) |
| Issum to Loviisa | 976.04 mi (1,570.79 km) |
| Issum to Mantsala | 955.77 mi (1,538.16 km) |
| Issum to Mariehamn | 787.51 mi (1,267.38 km) |
| Issum to Masku | 864.81 mi (1,391.78 km) |
