| Sidcup to Cascais | 992.55 mi (1,597.36 km) |
| Sidcup to Castelo Branco | 881.13 mi (1,418.04 km) |
| Sidcup to Castro Daire | 821.54 mi (1,322.15 km) |
| Sidcup to Celorico de Basto | 792.93 mi (1,276.10 km) |
| Sidcup to Chamusca | 931.12 mi (1,498.49 km) |
| Sidcup to Chaves | 758.79 mi (1,221.16 km) |
| Sidcup to Cinfaes | 813.56 mi (1,309.30 km) |
| Sidcup to Coimbra | 875.68 mi (1,409.28 km) |
| Sidcup to Condeixa-a-Nova | 883.17 mi (1,421.33 km) |
| Sidcup to Corroios | 992.05 mi (1,596.55 km) |
| Sidcup to Coruche | 956.99 mi (1,540.13 km) |
| Sidcup to Costa de Caparica | 992.02 mi (1,596.50 km) |
| Sidcup to Covilha | 851.31 mi (1,370.05 km) |
| Sidcup to Eiras | 873.63 mi (1,405.97 km) |
| Sidcup to Elvas | 935.87 mi (1,506.13 km) |
