| Harker Heights to The Villages (Florida) | 947.89 mi (1,525.49 km) |
| Harker Heights to The Woodlands (Texas) | 140.65 mi (226.36 km) |
| Harker Heights to Thibodaux (Louisiana) | 416.08 mi (669.62 km) |
| Harker Heights to Thomasville (Georgia) | 809.45 mi (1,302.69 km) |
| Harker Heights to Thomasville (North Carolina) | 1,063.97 mi (1,712.29 km) |
| Harker Heights to Thonotosassa (Florida) | 945.12 mi (1,521.03 km) |
| Harker Heights to Thornton (Colorado) | 736.65 mi (1,185.53 km) |
| Harker Heights to Thousand Oaks (California) | 1,251.93 mi (2,014.78 km) |
| Harker Heights to Three Lakes (Florida) | 1,111.82 mi (1,789.30 km) |
| Harker Heights to Tiffin (Ohio) | 1,062.90 mi (1,710.57 km) |
| Harker Heights to Tifton (Georgia) | 834.11 mi (1,342.37 km) |
| Harker Heights to Tigard (Oregon) | 1,675.40 mi (2,696.29 km) |
| Harker Heights to Tillmans Corner (Alabama) | 560.44 mi (901.94 km) |
| Harker Heights to Timberlake (Virginia) | 1,134.43 mi (1,825.69 km) |
| Harker Heights to Timberlane (Louisiana) | 460.61 mi (741.28 km) |
