| Harker Heights to Southern Pines (North Carolina) | 1,091.68 mi (1,756.89 km) |
| Harker Heights to Southfield (Michigan) | 1,117.83 mi (1,798.97 km) |
| Harker Heights to Southgate (Michigan) | 1,107.96 mi (1,783.10 km) |
| Harker Heights to Southlake (Texas) | 134.25 mi (216.06 km) |
| Harker Heights to Spanaway (Washington) | 1,717.30 mi (2,763.73 km) |
| Harker Heights to Spanish Fork (Utah) | 1,002.71 mi (1,613.71 km) |
| Harker Heights to Spanish Lake (Missouri) | 679.78 mi (1,094.00 km) |
| Harker Heights to Spanish Springs (Nevada) | 1,371.01 mi (2,206.43 km) |
| Harker Heights to Sparks (Nevada) | 1,371.52 mi (2,207.26 km) |
| Harker Heights to Spartanburg (South Carolina) | 948.45 mi (1,526.39 km) |
| Harker Heights to Spearfish (South Dakota) | 986.71 mi (1,587.95 km) |
| Harker Heights to Speedway (Indiana) | 879.55 mi (1,415.51 km) |
| Harker Heights to Spencer (Iowa) | 846.40 mi (1,362.15 km) |
| Harker Heights to Spokane (Washington) | 1,551.21 mi (2,496.43 km) |
| Harker Heights to Spokane Valley (Washington) | 1,544.02 mi (2,484.85 km) |
