| Killingworth to Cascais | 1,186.16 mi (1,908.93 km) |
| Killingworth to Castelo Branco | 1,086.39 mi (1,748.38 km) |
| Killingworth to Castro Daire | 1,018.97 mi (1,639.88 km) |
| Killingworth to Celorico de Basto | 987.57 mi (1,589.34 km) |
| Killingworth to Chamusca | 1,129.93 mi (1,818.44 km) |
| Killingworth to Chaves | 956.76 mi (1,539.76 km) |
| Killingworth to Cinfaes | 1,008.28 mi (1,622.66 km) |
| Killingworth to Coimbra | 1,071.61 mi (1,724.60 km) |
| Killingworth to Condeixa-a-Nova | 1,078.88 mi (1,736.29 km) |
| Killingworth to Corroios | 1,188.10 mi (1,912.07 km) |
| Killingworth to Coruche | 1,156.84 mi (1,861.75 km) |
| Killingworth to Costa de Caparica | 1,187.29 mi (1,910.75 km) |
| Killingworth to Covilha | 1,054.96 mi (1,697.79 km) |
| Killingworth to Eiras | 1,069.47 mi (1,721.15 km) |
| Killingworth to Elvas | 1,146.73 mi (1,845.49 km) |
