| Summerville to Cascais | 3,883.54 mi (6,249.96 km) |
| Summerville to Castelo Branco | 3,957.63 mi (6,369.19 km) |
| Summerville to Castro Daire | 3,913.42 mi (6,298.05 km) |
| Summerville to Celorico de Basto | 3,900.43 mi (6,277.14 km) |
| Summerville to Chamusca | 3,917.63 mi (6,304.82 km) |
| Summerville to Chaves | 3,919.52 mi (6,307.86 km) |
| Summerville to Cinfaes | 3,899.43 mi (6,275.53 km) |
| Summerville to Coimbra | 3,902.53 mi (6,280.52 km) |
| Summerville to Condeixa-a-Nova | 3,900.89 mi (6,277.88 km) |
| Summerville to Corroios | 3,899.01 mi (6,274.84 km) |
| Summerville to Coruche | 3,923.72 mi (6,314.62 km) |
| Summerville to Costa de Caparica | 3,894.02 mi (6,266.81 km) |
| Summerville to Covilha | 3,947.80 mi (6,353.38 km) |
| Summerville to Eiras | 3,902.16 mi (6,279.93 km) |
| Summerville to Elvas | 3,995.96 mi (6,430.88 km) |
