| Harker Heights to Sumter (South Carolina) | 1,023.54 mi (1,647.22 km) |
| Harker Heights to Sun City (Arizona) | 871.80 mi (1,403.02 km) |
| Harker Heights to Sun City Center (Florida) | 948.01 mi (1,525.67 km) |
| Harker Heights to Sun City West (Arizona) | 876.59 mi (1,410.73 km) |
| Harker Heights to Sun Lakes (Arizona) | 844.82 mi (1,359.61 km) |
| Harker Heights to Sun Prairie (Wisconsin) | 956.11 mi (1,538.71 km) |
| Harker Heights to Sun Valley (Nevada) | 1,375.41 mi (2,213.51 km) |
| Harker Heights to Sun Village (California) | 1,201.88 mi (1,934.25 km) |
| Harker Heights to Sunland Park (New Mexico) | 530.15 mi (853.19 km) |
| Harker Heights to Sunny Isles Beach (Florida) | 1,119.55 mi (1,801.75 km) |
| Harker Heights to Sunnyside (Washington) | 1,591.66 mi (2,561.53 km) |
| Harker Heights to Sunnyvale (California) | 1,455.07 mi (2,341.71 km) |
| Harker Heights to Sunrise (Florida) | 1,103.85 mi (1,776.47 km) |
| Harker Heights to Sunrise Manor (Nevada) | 1,060.21 mi (1,706.24 km) |
| Harker Heights to Sunset (Florida) | 1,112.72 mi (1,790.76 km) |
