| Preston to Cascais | 1,087.69 mi (1,750.47 km) |
| Preston to Castelo Branco | 989.16 mi (1,591.89 km) |
| Preston to Castro Daire | 921.03 mi (1,482.25 km) |
| Preston to Celorico de Basto | 889.44 mi (1,431.42 km) |
| Preston to Chamusca | 1,031.95 mi (1,660.76 km) |
| Preston to Chaves | 858.98 mi (1,382.40 km) |
| Preston to Cinfaes | 910.12 mi (1,464.69 km) |
| Preston to Coimbra | 973.46 mi (1,566.63 km) |
| Preston to Condeixa-a-Nova | 980.70 mi (1,578.28 km) |
| Preston to Corroios | 1,089.82 mi (1,753.90 km) |
| Preston to Coruche | 1,058.92 mi (1,704.16 km) |
| Preston to Costa de Caparica | 1,088.94 mi (1,752.49 km) |
| Preston to Covilha | 957.59 mi (1,541.09 km) |
| Preston to Eiras | 971.32 mi (1,563.18 km) |
| Preston to Elvas | 1,050.13 mi (1,690.02 km) |
