| Harker Heights to Ashtabula (Ohio) | 1,194.26 mi (1,921.97 km) |
| Harker Heights to Ashwaubenon (Wisconsin) | 1,062.41 mi (1,709.79 km) |
| Harker Heights to Aspen Hill (Maryland) | 1,284.44 mi (2,067.11 km) |
| Harker Heights to Astoria (Oregon) | 1,743.37 mi (2,805.68 km) |
| Harker Heights to Atascadero (California) | 1,362.33 mi (2,192.45 km) |
| Harker Heights to Atascocita (Texas) | 163.75 mi (263.53 km) |
| Harker Heights to Atchison (Kansas) | 604.35 mi (972.62 km) |
| Harker Heights to Athens (Alabama) | 671.11 mi (1,080.05 km) |
| Harker Heights to Athens (Georgia) | 854.74 mi (1,375.57 km) |
| Harker Heights to Athens (Ohio) | 1,045.03 mi (1,681.82 km) |
| Harker Heights to Athens (Tennessee) | 811.59 mi (1,306.14 km) |
| Harker Heights to Athens (Texas) | 132.85 mi (213.79 km) |
| Harker Heights to Atlanta (Georgia) | 792.98 mi (1,276.18 km) |
| Harker Heights to Atlantic Beach (Florida) | 964.79 mi (1,552.68 km) |
| Harker Heights to Atlantic City (New Jersey) | 1,424.43 mi (2,292.40 km) |
