| Williamsport to San Luis (Arizona) | 2,149.80 mi (3,459.76 km) |
| Williamsport to San Luis Obispo (California) | 2,377.68 mi (3,826.50 km) |
| Williamsport to San Marcos (California) | 2,257.79 mi (3,633.56 km) |
| Williamsport to San Marcos (Texas) | 1,407.13 mi (2,264.56 km) |
| Williamsport to San Marino (California) | 2,277.27 mi (3,664.91 km) |
| Williamsport to San Mateo (California) | 2,403.45 mi (3,867.98 km) |
| Williamsport to San Pablo (California) | 2,395.19 mi (3,854.69 km) |
| Williamsport to San Rafael (California) | 2,403.73 mi (3,868.42 km) |
| Williamsport to San Ramon (California) | 2,379.14 mi (3,828.86 km) |
| Williamsport to San Tan Valley (Arizona) | 1,965.41 mi (3,163.02 km) |
| Williamsport to Sand Springs (Oklahoma) | 1,085.64 mi (1,747.18 km) |
| Williamsport to Sandusky (Ohio) | 294.17 mi (473.43 km) |
| Williamsport to Sandy (Oregon) | 2,261.63 mi (3,639.74 km) |
| Williamsport to Sandy (Utah) | 1,806.31 mi (2,906.97 km) |
| Williamsport to Sandy Springs (Georgia) | 644.32 mi (1,036.93 km) |
