| McDonough to Cascais | 4,071.97 mi (6,553.20 km) |
| McDonough to Castelo Branco | 4,141.71 mi (6,665.43 km) |
| McDonough to Castro Daire | 4,094.81 mi (6,589.97 km) |
| McDonough to Celorico de Basto | 4,080.50 mi (6,566.93 km) |
| McDonough to Chamusca | 4,103.67 mi (6,604.22 km) |
| McDonough to Chaves | 4,098.19 mi (6,595.40 km) |
| McDonough to Cinfaes | 4,080.39 mi (6,566.76 km) |
| McDonough to Coimbra | 4,086.19 mi (6,576.09 km) |
| McDonough to Condeixa-a-Nova | 4,084.86 mi (6,573.94 km) |
| McDonough to Corroios | 4,087.46 mi (6,578.14 km) |
| McDonough to Coruche | 4,110.83 mi (6,615.75 km) |
| McDonough to Costa de Caparica | 4,082.46 mi (6,570.08 km) |
| McDonough to Covilha | 4,130.60 mi (6,647.56 km) |
| McDonough to Eiras | 4,085.73 mi (6,575.35 km) |
| McDonough to Elvas | 4,182.32 mi (6,730.79 km) |
