| Greensboro to Cascais | 3,770.05 mi (6,067.30 km) |
| Greensboro to Castelo Branco | 3,838.26 mi (6,177.08 km) |
| Greensboro to Castro Daire | 3,790.63 mi (6,100.43 km) |
| Greensboro to Celorico de Basto | 3,776.00 mi (6,076.88 km) |
| Greensboro to Chamusca | 3,800.87 mi (6,116.90 km) |
| Greensboro to Chaves | 3,793.38 mi (6,104.85 km) |
| Greensboro to Cinfaes | 3,776.11 mi (6,077.06 km) |
| Greensboro to Coimbra | 3,782.64 mi (6,087.56 km) |
| Greensboro to Condeixa-a-Nova | 3,781.40 mi (6,085.57 km) |
| Greensboro to Corroios | 3,785.55 mi (6,092.26 km) |
| Greensboro to Coruche | 3,808.41 mi (6,129.04 km) |
| Greensboro to Costa de Caparica | 3,780.54 mi (6,084.19 km) |
| Greensboro to Covilha | 3,826.79 mi (6,158.62 km) |
| Greensboro to Eiras | 3,782.15 mi (6,086.78 km) |
| Greensboro to Elvas | 3,879.59 mi (6,243.60 km) |
