| Castelo Branco to Lapua | 2,032.02 mi (3,270.22 km) |
| Castelo Branco to Laukaa | 2,086.41 mi (3,357.75 km) |
| Castelo Branco to Lauritsala | 2,104.96 mi (3,387.60 km) |
| Castelo Branco to Lempaala | 1,984.77 mi (3,194.17 km) |
| Castelo Branco to Leppavirta | 2,139.16 mi (3,442.64 km) |
| Castelo Branco to Lieksa | 2,228.30 mi (3,586.10 km) |
| Castelo Branco to Lieto | 1,916.90 mi (3,084.94 km) |
| Castelo Branco to Liminka | 2,167.00 mi (3,487.45 km) |
| Castelo Branco to Liperi | 2,184.89 mi (3,516.25 km) |
| Castelo Branco to Lohja | 1,953.63 mi (3,144.06 km) |
| Castelo Branco to Loimaa | 1,947.55 mi (3,134.28 km) |
| Castelo Branco to Loviisa | 2,024.67 mi (3,258.39 km) |
| Castelo Branco to Mantsala | 2,003.79 mi (3,224.78 km) |
| Castelo Branco to Mariehamn | 1,830.98 mi (2,946.68 km) |
| Castelo Branco to Masku | 1,909.94 mi (3,073.74 km) |
