| Harker Heights to Cadiz | 5,049.75 mi (8,126.79 km) |
| Harker Heights to Calafell | 5,272.75 mi (8,485.67 km) |
| Harker Heights to Calahorra | 5,076.29 mi (8,169.50 km) |
| Harker Heights to Calasparra | 5,219.91 mi (8,400.63 km) |
| Harker Heights to Calatayud | 5,121.78 mi (8,242.70 km) |
| Harker Heights to Caldas de Montbuy | 5,284.92 mi (8,505.26 km) |
| Harker Heights to Caldas de Reyes | 4,759.88 mi (7,660.29 km) |
| Harker Heights to Calella | 5,307.71 mi (8,541.93 km) |
| Harker Heights to Callosa de Segura | 5,262.60 mi (8,469.34 km) |
| Harker Heights to Calpe | 5,288.85 mi (8,511.59 km) |
| Harker Heights to Calvia | 5,371.82 mi (8,645.10 km) |
| Harker Heights to Camas | 5,036.16 mi (8,104.92 km) |
| Harker Heights to Cambados | 4,755.13 mi (7,652.65 km) |
| Harker Heights to Cambre | 4,755.46 mi (7,653.18 km) |
| Harker Heights to Cambrils | 5,254.01 mi (8,455.51 km) |
