| Harker Heights to Tacoma (Washington) | 1,723.73 mi (2,774.07 km) |
| Harker Heights to Tahlequah (Oklahoma) | 368.89 mi (593.66 km) |
| Harker Heights to Takoma Park (Maryland) | 1,285.96 mi (2,069.56 km) |
| Harker Heights to Talladega (Alabama) | 693.98 mi (1,116.86 km) |
| Harker Heights to Tallahassee (Florida) | 795.76 mi (1,280.64 km) |
| Harker Heights to Tallmadge (Ohio) | 1,137.98 mi (1,831.41 km) |
| Harker Heights to Tamalpais-Homestead Valley (California) | 1,488.95 mi (2,396.23 km) |
| Harker Heights to Tamarac (Florida) | 1,105.18 mi (1,778.62 km) |
| Harker Heights to Tamiami (Florida) | 1,108.59 mi (1,784.10 km) |
| Harker Heights to Tampa (Florida) | 937.16 mi (1,508.21 km) |
| Harker Heights to Tanaina (Alaska) | 3,117.33 mi (5,016.86 km) |
| Harker Heights to Tanque Verde (Arizona) | 774.39 mi (1,246.25 km) |
| Harker Heights to Tarboro (North Carolina) | 1,202.62 mi (1,935.43 km) |
| Harker Heights to Tarpon Springs (Florida) | 915.56 mi (1,473.45 km) |
| Harker Heights to Tarrytown (New York) | 1,490.43 mi (2,398.61 km) |
