| Harker Heights to Anoka (Minnesota) | 1,004.44 mi (1,616.49 km) |
| Harker Heights to Ansonia (Connecticut) | 1,536.02 mi (2,471.99 km) |
| Harker Heights to Antelope (California) | 1,439.30 mi (2,316.33 km) |
| Harker Heights to Anthem (Arizona) | 864.80 mi (1,391.77 km) |
| Harker Heights to Antioch (California) | 1,450.68 mi (2,334.64 km) |
| Harker Heights to Antioch (Illinois) | 948.82 mi (1,526.99 km) |
| Harker Heights to Apache Junction (Arizona) | 827.15 mi (1,331.17 km) |
| Harker Heights to Apex (North Carolina) | 1,127.74 mi (1,814.92 km) |
| Harker Heights to Apollo Beach (Florida) | 944.50 mi (1,520.02 km) |
| Harker Heights to Apopka (Florida) | 978.03 mi (1,573.98 km) |
| Harker Heights to Apple Valley (California) | 1,159.56 mi (1,866.13 km) |
| Harker Heights to Apple Valley (Minnesota) | 975.92 mi (1,570.59 km) |
| Harker Heights to Appleton (Wisconsin) | 1,042.72 mi (1,678.10 km) |
| Harker Heights to Arbutus (Maryland) | 1,307.60 mi (2,104.38 km) |
| Harker Heights to Arcadia (California) | 1,203.84 mi (1,937.39 km) |
