| Cheyenne to Cascais | 4,776.37 mi (7,686.82 km) |
| Cheyenne to Castelo Branco | 4,812.05 mi (7,744.24 km) |
| Cheyenne to Castro Daire | 4,748.86 mi (7,642.55 km) |
| Cheyenne to Celorico de Basto | 4,726.19 mi (7,606.06 km) |
| Cheyenne to Chamusca | 4,789.65 mi (7,708.20 km) |
| Cheyenne to Chaves | 4,733.45 mi (7,617.76 km) |
| Cheyenne to Cinfaes | 4,732.25 mi (7,615.82 km) |
| Cheyenne to Coimbra | 4,756.36 mi (7,654.63 km) |
| Cheyenne to Condeixa-a-Nova | 4,757.25 mi (7,656.06 km) |
| Cheyenne to Corroios | 4,791.39 mi (7,711.00 km) |
| Cheyenne to Coruche | 4,804.09 mi (7,731.44 km) |
| Cheyenne to Costa de Caparica | 4,786.49 mi (7,703.11 km) |
| Cheyenne to Covilha | 4,792.60 mi (7,712.94 km) |
| Cheyenne to Eiras | 4,755.31 mi (7,652.93 km) |
| Cheyenne to Elvas | 4,866.77 mi (7,832.30 km) |
