| Altoona to Cascais | 3,576.40 mi (5,755.66 km) |
| Altoona to Castelo Branco | 3,636.08 mi (5,851.71 km) |
| Altoona to Castro Daire | 3,583.94 mi (5,767.80 km) |
| Altoona to Celorico de Basto | 3,567.10 mi (5,740.69 km) |
| Altoona to Chamusca | 3,602.50 mi (5,797.66 km) |
| Altoona to Chaves | 3,582.04 mi (5,764.73 km) |
| Altoona to Cinfaes | 3,568.76 mi (5,743.36 km) |
| Altoona to Coimbra | 3,580.00 mi (5,761.46 km) |
| Altoona to Condeixa-a-Nova | 3,579.33 mi (5,760.37 km) |
| Altoona to Corroios | 3,591.89 mi (5,780.59 km) |
| Altoona to Coruche | 3,612.03 mi (5,813.00 km) |
| Altoona to Costa de Caparica | 3,586.87 mi (5,772.51 km) |
| Altoona to Covilha | 3,622.39 mi (5,829.67 km) |
| Altoona to Eiras | 3,579.36 mi (5,760.42 km) |
| Altoona to Elvas | 3,681.39 mi (5,924.63 km) |
