| Lockport to Cascais | 4,005.71 mi (6,446.57 km) |
| Lockport to Castelo Branco | 4,055.49 mi (6,526.69 km) |
| Lockport to Castro Daire | 3,998.39 mi (6,434.78 km) |
| Lockport to Celorico de Basto | 3,978.97 mi (6,403.54 km) |
| Lockport to Chamusca | 4,026.48 mi (6,480.00 km) |
| Lockport to Chaves | 3,990.75 mi (6,422.49 km) |
| Lockport to Cinfaes | 3,982.51 mi (6,409.23 km) |
| Lockport to Coimbra | 3,999.29 mi (6,436.23 km) |
| Lockport to Condeixa-a-Nova | 3,999.27 mi (6,436.21 km) |
| Lockport to Corroios | 4,021.08 mi (6,471.30 km) |
| Lockport to Coruche | 4,038.15 mi (6,498.77 km) |
| Lockport to Costa de Caparica | 4,016.08 mi (6,463.26 km) |
| Lockport to Covilha | 4,039.29 mi (6,500.61 km) |
| Lockport to Eiras | 3,998.46 mi (6,434.91 km) |
| Lockport to Elvas | 4,105.02 mi (6,606.39 km) |
