| Sleaford to Smyrna (Delaware) | 3,546.90 mi (5,708.19 km) |
| Sleaford to Smyrna (Georgia) | 4,162.37 mi (6,698.68 km) |
| Sleaford to Smyrna (Tennessee) | 4,136.15 mi (6,656.48 km) |
| Sleaford to Snellville (Georgia) | 4,142.40 mi (6,666.56 km) |
| Sleaford to Snoqualmie (Washington) | 4,687.45 mi (7,543.72 km) |
| Sleaford to Snyder (Texas) | 4,847.92 mi (7,801.97 km) |
| Sleaford to Socastee (South Carolina) | 3,950.90 mi (6,358.36 km) |
| Sleaford to Socorro (Texas) | 5,099.13 mi (8,206.26 km) |
| Sleaford to Soddy-Daisy (Tennessee) | 4,118.75 mi (6,628.48 km) |
| Sleaford to Solana Beach (California) | 5,393.27 mi (8,679.63 km) |
| Sleaford to Soledad (California) | 5,317.84 mi (8,558.24 km) |
| Sleaford to Solon (Ohio) | 3,678.81 mi (5,920.47 km) |
| Sleaford to Somers Point (New Jersey) | 3,505.85 mi (5,642.13 km) |
| Sleaford to Somerset (Kentucky) | 4,006.69 mi (6,448.15 km) |
| Sleaford to Somerset (New Jersey) | 3,447.40 mi (5,548.06 km) |
