| Harker Heights to Sestu | 5,678.92 mi (9,139.34 km) |
| Harker Heights to Settimo Torinese | 5,400.90 mi (8,691.90 km) |
| Harker Heights to Seveso | 5,437.66 mi (8,751.06 km) |
| Harker Heights to Sezze | 5,762.39 mi (9,273.67 km) |
| Harker Heights to Siano | 5,859.07 mi (9,429.26 km) |
| Harker Heights to Siena | 5,617.28 mi (9,040.14 km) |
| Harker Heights to Signa | 5,589.41 mi (8,995.28 km) |
| Harker Heights to Silea | 5,563.34 mi (8,953.33 km) |
| Harker Heights to Silvi Paese | 5,762.55 mi (9,273.92 km) |
| Harker Heights to Sinalunga | 5,637.86 mi (9,073.26 km) |
| Harker Heights to Siniscola | 5,655.89 mi (9,102.27 km) |
| Harker Heights to Sinnai | 5,683.72 mi (9,147.07 km) |
| Harker Heights to Siracusa | 6,041.62 mi (9,723.05 km) |
| Harker Heights to Solaro | 5,436.57 mi (8,749.31 km) |
| Harker Heights to Soliera | 5,544.77 mi (8,923.44 km) |
