| Harker Heights to Town and Country (Missouri) | 662.07 mi (1,065.49 km) |
| Harker Heights to Towson (Maryland) | 1,314.76 mi (2,115.90 km) |
| Harker Heights to Tracy (California) | 1,428.76 mi (2,299.36 km) |
| Harker Heights to Traverse City (Michigan) | 1,148.98 mi (1,849.10 km) |
| Harker Heights to Travilah (Maryland) | 1,275.30 mi (2,052.40 km) |
| Harker Heights to Trenton (Michigan) | 1,105.62 mi (1,779.32 km) |
| Harker Heights to Trenton (New Jersey) | 1,426.63 mi (2,295.94 km) |
| Harker Heights to Trenton (Ohio) | 942.51 mi (1,516.82 km) |
| Harker Heights to Triangle (Virginia) | 1,260.30 mi (2,028.26 km) |
| Harker Heights to Trinity (Florida) | 921.04 mi (1,482.27 km) |
| Harker Heights to Trophy Club (Texas) | 137.12 mi (220.68 km) |
| Harker Heights to Trotwood (Ohio) | 961.14 mi (1,546.80 km) |
| Harker Heights to Troutdale (Oregon) | 1,662.44 mi (2,675.44 km) |
| Harker Heights to Troy (Alabama) | 690.09 mi (1,110.59 km) |
| Harker Heights to Troy (Illinois) | 687.58 mi (1,106.55 km) |
