| Knightdale to Benavente | 3,736.72 mi (6,013.67 km) |
| Knightdale to Bombarral | 3,711.73 mi (5,973.45 km) |
| Knightdale to Bougado | 3,694.62 mi (5,945.92 km) |
| Knightdale to Braga | 3,696.78 mi (5,949.39 km) |
| Knightdale to Braganca | 3,772.24 mi (6,070.84 km) |
| Knightdale to Cabeceiras de Basto | 3,716.92 mi (5,981.81 km) |
| Knightdale to Cacem | 3,715.68 mi (5,979.81 km) |
| Knightdale to Cadaval | 3,715.33 mi (5,979.24 km) |
| Knightdale to Caldas da Rainha | 3,709.48 mi (5,969.83 km) |
| Knightdale to Calheta | 3,450.71 mi (5,553.38 km) |
| Knightdale to Camara de Lobos | 3,461.63 mi (5,570.95 km) |
| Knightdale to Canico | 3,469.91 mi (5,584.28 km) |
| Knightdale to Cantanhede | 3,715.02 mi (5,978.75 km) |
| Knightdale to Carregal do Sal | 3,742.54 mi (6,023.03 km) |
| Knightdale to Cartaxo | 3,733.23 mi (6,008.06 km) |
