| Sileby to Cascais | 1,047.42 mi (1,685.65 km) |
| Sileby to Castelo Branco | 942.17 mi (1,516.28 km) |
| Sileby to Castro Daire | 877.91 mi (1,412.86 km) |
| Sileby to Celorico de Basto | 847.60 mi (1,364.09 km) |
| Sileby to Chamusca | 988.66 mi (1,591.10 km) |
| Sileby to Chaves | 815.18 mi (1,311.91 km) |
| Sileby to Cinfaes | 868.37 mi (1,397.50 km) |
| Sileby to Coimbra | 931.43 mi (1,498.98 km) |
| Sileby to Condeixa-a-Nova | 938.82 mi (1,510.88 km) |
| Sileby to Corroios | 1,048.26 mi (1,687.01 km) |
| Sileby to Coruche | 1,015.20 mi (1,633.81 km) |
| Sileby to Costa de Caparica | 1,047.79 mi (1,686.26 km) |
| Sileby to Covilha | 911.33 mi (1,466.64 km) |
| Sileby to Eiras | 929.31 mi (1,495.59 km) |
| Sileby to Elvas | 1,000.31 mi (1,609.84 km) |
