| Harker Heights to Superior (Colorado) | 744.21 mi (1,197.69 km) |
| Harker Heights to Superior (Wisconsin) | 1,120.32 mi (1,802.98 km) |
| Harker Heights to Surprise (Arizona) | 882.07 mi (1,419.55 km) |
| Harker Heights to Susanville (California) | 1,435.52 mi (2,310.24 km) |
| Harker Heights to Sussex (Wisconsin) | 981.34 mi (1,579.31 km) |
| Harker Heights to Suwanee (Georgia) | 816.53 mi (1,314.08 km) |
| Harker Heights to Swansea (Illinois) | 675.36 mi (1,086.89 km) |
| Harker Heights to Sweetwater (Florida) | 1,109.43 mi (1,785.46 km) |
| Harker Heights to Sweetwater (Texas) | 189.45 mi (304.88 km) |
| Harker Heights to Sycamore (Illinois) | 903.69 mi (1,454.34 km) |
| Harker Heights to Sylacauga (Alabama) | 681.73 mi (1,097.14 km) |
| Harker Heights to Sylvania (Ohio) | 1,066.30 mi (1,716.05 km) |
| Harker Heights to Syosset (New York) | 1,502.65 mi (2,418.28 km) |
| Harker Heights to Syracuse (New York) | 1,439.23 mi (2,316.22 km) |
| Harker Heights to Syracuse (Utah) | 1,060.01 mi (1,705.93 km) |
