| Southlake to Smithville (Missouri) | 467.34 mi (752.11 km) |
| Southlake to Smyrna (Delaware) | 1,275.71 mi (2,053.06 km) |
| Southlake to Smyrna (Georgia) | 730.89 mi (1,176.26 km) |
| Southlake to Smyrna (Tennessee) | 639.63 mi (1,029.38 km) |
| Southlake to Snellville (Georgia) | 760.31 mi (1,223.60 km) |
| Southlake to Snoqualmie (Washington) | 1,633.98 mi (2,629.64 km) |
| Southlake to Snyder (Texas) | 218.99 mi (352.43 km) |
| Southlake to Socastee (South Carolina) | 1,047.29 mi (1,685.45 km) |
| Southlake to Socorro (Texas) | 539.58 mi (868.38 km) |
| Southlake to Soddy-Daisy (Tennessee) | 702.90 mi (1,131.21 km) |
| Southlake to Solana Beach (California) | 1,163.69 mi (1,872.78 km) |
| Southlake to Soledad (California) | 1,391.43 mi (2,239.28 km) |
| Southlake to Solon (Ohio) | 1,040.27 mi (1,674.15 km) |
| Southlake to Somers Point (New Jersey) | 1,328.28 mi (2,137.66 km) |
| Southlake to Somerset (Kentucky) | 763.96 mi (1,229.47 km) |
