| Harker Heights to Carmona | 5,053.81 mi (8,133.32 km) |
| Harker Heights to Cartagena | 5,275.14 mi (8,489.52 km) |
| Harker Heights to Cartama | 5,126.71 mi (8,250.64 km) |
| Harker Heights to Cartaya | 4,984.68 mi (8,022.07 km) |
| Harker Heights to Caspe | 5,198.83 mi (8,366.71 km) |
| Harker Heights to Cassa de la Selva | 5,307.64 mi (8,541.82 km) |
| Harker Heights to Castalla | 5,256.72 mi (8,459.87 km) |
| Harker Heights to Castellbisbal | 5,281.95 mi (8,500.47 km) |
| Harker Heights to Castelldefels | 5,288.43 mi (8,510.91 km) |
| Harker Heights to Castello de Ampurias | 5,303.74 mi (8,535.54 km) |
| Harker Heights to Castellon de la Plana | 5,240.36 mi (8,433.55 km) |
| Harker Heights to Castilleja de la Cuesta | 5,035.91 mi (8,104.51 km) |
| Harker Heights to Catarroja | 5,242.41 mi (8,436.84 km) |
| Harker Heights to Catral | 5,264.93 mi (8,473.09 km) |
| Harker Heights to Caudete | 5,238.13 mi (8,429.96 km) |
