| Greenford to Cascais | 988.83 mi (1,591.37 km) |
| Greenford to Castelo Branco | 878.84 mi (1,414.36 km) |
| Greenford to Castro Daire | 818.05 mi (1,316.52 km) |
| Greenford to Celorico de Basto | 789.00 mi (1,269.77 km) |
| Greenford to Chamusca | 928.00 mi (1,493.47 km) |
| Greenford to Chaves | 755.23 mi (1,215.43 km) |
| Greenford to Cinfaes | 809.68 mi (1,303.05 km) |
| Greenford to Coimbra | 872.08 mi (1,403.48 km) |
| Greenford to Condeixa-a-Nova | 879.56 mi (1,415.51 km) |
| Greenford to Corroios | 988.65 mi (1,591.08 km) |
| Greenford to Coruche | 954.06 mi (1,535.41 km) |
| Greenford to Costa de Caparica | 988.52 mi (1,590.86 km) |
| Greenford to Covilha | 848.74 mi (1,365.91 km) |
| Greenford to Eiras | 870.01 mi (1,400.15 km) |
| Greenford to Elvas | 934.50 mi (1,503.94 km) |
