| Harker Heights to Somersworth (New Hampshire) | 1,686.56 mi (2,714.25 km) |
| Harker Heights to Somerton (Arizona) | 1,005.75 mi (1,618.59 km) |
| Harker Heights to Somerville (Massachusetts) | 1,655.64 mi (2,664.50 km) |
| Harker Heights to Somerville (New Jersey) | 1,442.29 mi (2,321.14 km) |
| Harker Heights to Sonoma (California) | 1,490.44 mi (2,398.64 km) |
| Harker Heights to Soquel (California) | 1,446.36 mi (2,327.69 km) |
| Harker Heights to South Bend (Indiana) | 967.16 mi (1,556.50 km) |
| Harker Heights to South Bradenton (Florida) | 940.43 mi (1,513.48 km) |
| Harker Heights to South Burlington (Vermont) | 1,613.94 mi (2,597.38 km) |
| Harker Heights to South Charleston (West Virginia) | 1,033.31 mi (1,662.95 km) |
| Harker Heights to South Daytona (Florida) | 1,002.09 mi (1,612.71 km) |
| Harker Heights to South El Monte (California) | 1,204.03 mi (1,937.69 km) |
| Harker Heights to South Elgin (Illinois) | 914.73 mi (1,472.11 km) |
| Harker Heights to South Euclid (Ohio) | 1,149.43 mi (1,849.83 km) |
| Harker Heights to South Farmingdale (New York) | 1,503.17 mi (2,419.11 km) |
