| Sligo to Castelo Branco | 999.45 mi (1,608.45 km) |
| Sligo to Castro Daire | 923.90 mi (1,486.87 km) |
| Sligo to Celorico de Basto | 890.43 mi (1,433.01 km) |
| Sligo to Chamusca | 1,030.64 mi (1,658.66 km) |
| Sligo to Chaves | 866.71 mi (1,394.83 km) |
| Sligo to Cinfaes | 909.87 mi (1,464.30 km) |
| Sligo to Coimbra | 971.15 mi (1,562.92 km) |
| Sligo to Condeixa-a-Nova | 977.67 mi (1,573.41 km) |
| Sligo to Corroios | 1,081.90 mi (1,741.15 km) |
| Sligo to Coruche | 1,057.81 mi (1,702.38 km) |
| Sligo to Costa de Caparica | 1,079.96 mi (1,738.03 km) |
| Sligo to Covilha | 967.23 mi (1,556.61 km) |
| Sligo to Eiras | 969.01 mi (1,559.47 km) |
| Sligo to Elvas | 1,065.87 mi (1,715.35 km) |
| Sligo to Entroncamento | 1,022.68 mi (1,645.84 km) |
