| Harker Heights to Benavente | 4,854.04 mi (7,811.83 km) |
| Harker Heights to Bombarral | 4,828.10 mi (7,770.08 km) |
| Harker Heights to Bougado | 4,798.61 mi (7,722.62 km) |
| Harker Heights to Braga | 4,799.24 mi (7,723.63 km) |
| Harker Heights to Braganca | 4,870.12 mi (7,837.71 km) |
| Harker Heights to Cabeceiras de Basto | 4,818.78 mi (7,755.08 km) |
| Harker Heights to Cacem | 4,834.75 mi (7,780.79 km) |
| Harker Heights to Cadaval | 4,831.79 mi (7,776.01 km) |
| Harker Heights to Caldas da Rainha | 4,825.12 mi (7,765.27 km) |
| Harker Heights to Calheta | 4,597.46 mi (7,398.90 km) |
| Harker Heights to Camara de Lobos | 4,608.33 mi (7,416.39 km) |
| Harker Heights to Canico | 4,616.63 mi (7,429.75 km) |
| Harker Heights to Cantanhede | 4,824.77 mi (7,764.71 km) |
| Harker Heights to Carregal do Sal | 4,850.79 mi (7,806.59 km) |
| Harker Heights to Cartaxo | 4,849.61 mi (7,804.70 km) |
