| Islington to Cascais | 994.99 mi (1,601.29 km) |
| Islington to Castelo Branco | 884.38 mi (1,423.27 km) |
| Islington to Castro Daire | 824.10 mi (1,326.26 km) |
| Islington to Celorico de Basto | 795.24 mi (1,279.81 km) |
| Islington to Chamusca | 933.90 mi (1,502.97 km) |
| Islington to Chaves | 761.31 mi (1,225.21 km) |
| Islington to Cinfaes | 815.89 mi (1,313.05 km) |
| Islington to Coimbra | 878.19 mi (1,413.30 km) |
| Islington to Condeixa-a-Nova | 885.67 mi (1,425.34 km) |
| Islington to Corroios | 994.67 mi (1,600.77 km) |
| Islington to Coruche | 959.88 mi (1,544.77 km) |
| Islington to Costa de Caparica | 994.58 mi (1,600.63 km) |
| Islington to Covilha | 854.39 mi (1,375.02 km) |
| Islington to Eiras | 876.12 mi (1,409.98 km) |
| Islington to Elvas | 939.63 mi (1,512.19 km) |
