| Castlebar to Lapua | 1,308.15 mi (2,105.26 km) |
| Castlebar to Laukaa | 1,392.12 mi (2,240.40 km) |
| Castlebar to Lauritsala | 1,457.76 mi (2,346.04 km) |
| Castlebar to Lempaala | 1,309.98 mi (2,108.22 km) |
| Castlebar to Leppavirta | 1,450.98 mi (2,335.13 km) |
| Castlebar to Lieksa | 1,527.55 mi (2,458.36 km) |
| Castlebar to Lieto | 1,259.18 mi (2,026.46 km) |
| Castlebar to Liminka | 1,411.38 mi (2,271.40 km) |
| Castlebar to Liperi | 1,501.88 mi (2,417.04 km) |
| Castlebar to Lohja | 1,312.33 mi (2,111.99 km) |
| Castlebar to Loimaa | 1,282.69 mi (2,064.29 km) |
| Castlebar to Loviisa | 1,387.19 mi (2,232.47 km) |
| Castlebar to Mantsala | 1,356.95 mi (2,183.79 km) |
| Castlebar to Mariehamn | 1,170.07 mi (1,883.04 km) |
| Castlebar to Masku | 1,248.03 mi (2,008.51 km) |
