| Williamsport to Stony Brook (New York) | 204.90 mi (329.76 km) |
| Williamsport to Storm Lake (Iowa) | 936.45 mi (1,507.08 km) |
| Williamsport to Storrs (Connecticut) | 250.61 mi (403.32 km) |
| Williamsport to Stoughton (Wisconsin) | 635.02 mi (1,021.96 km) |
| Williamsport to Stow (Ohio) | 228.60 mi (367.89 km) |
| Williamsport to Streamwood (Illinois) | 577.47 mi (929.34 km) |
| Williamsport to Streator (Illinois) | 612.81 mi (986.23 km) |
| Williamsport to Streetsboro (Ohio) | 223.83 mi (360.22 km) |
| Williamsport to Strongsville (Ohio) | 248.97 mi (400.68 km) |
| Williamsport to Stuart (Florida) | 987.29 mi (1,588.89 km) |
| Williamsport to Stuarts Draft (Virginia) | 246.64 mi (396.93 km) |
| Williamsport to Sturgis (Michigan) | 435.13 mi (700.28 km) |
| Williamsport to Suamico (Wisconsin) | 604.67 mi (973.12 km) |
| Williamsport to Sudley (Virginia) | 171.16 mi (275.45 km) |
| Williamsport to Suffern (New York) | 150.79 mi (242.67 km) |
