| Belfast to Cascais | 1,110.37 mi (1,786.96 km) |
| Belfast to Castelo Branco | 1,023.77 mi (1,647.59 km) |
| Belfast to Castro Daire | 950.79 mi (1,530.15 km) |
| Belfast to Celorico de Basto | 917.84 mi (1,477.12 km) |
| Belfast to Chamusca | 1,060.10 mi (1,706.06 km) |
| Belfast to Chaves | 891.03 mi (1,433.97 km) |
| Belfast to Cinfaes | 937.97 mi (1,509.52 km) |
| Belfast to Coimbra | 1,000.61 mi (1,610.33 km) |
| Belfast to Condeixa-a-Nova | 1,007.48 mi (1,621.38 km) |
| Belfast to Corroios | 1,114.46 mi (1,793.55 km) |
| Belfast to Coruche | 1,087.36 mi (1,749.93 km) |
| Belfast to Costa de Caparica | 1,112.96 mi (1,791.13 km) |
| Belfast to Covilha | 991.59 mi (1,595.81 km) |
| Belfast to Eiras | 998.45 mi (1,606.85 km) |
| Belfast to Elvas | 1,088.31 mi (1,751.46 km) |
