| Allentown to Scottsboro (Alabama) | 709.08 mi (1,141.15 km) |
| Allentown to Scottsdale (Arizona) | 2,044.82 mi (3,290.82 km) |
| Allentown to Scranton (Pennsylvania) | 56.71 mi (91.27 km) |
| Allentown to Seabrook (Maryland) | 133.38 mi (214.65 km) |
| Allentown to Seabrook (Texas) | 1,337.17 mi (2,151.97 km) |
| Allentown to Seaford (New York) | 104.12 mi (167.56 km) |
| Allentown to Seagoville (Texas) | 1,286.45 mi (2,070.33 km) |
| Allentown to Seal Beach (California) | 2,368.46 mi (3,811.66 km) |
| Allentown to Searcy (Arkansas) | 958.48 mi (1,542.52 km) |
| Allentown to Seaside (California) | 2,488.32 mi (4,004.56 km) |
| Allentown to SeaTac (Washington) | 2,337.23 mi (3,761.41 km) |
| Allentown to Seattle (Washington) | 2,337.19 mi (3,761.35 km) |
| Allentown to Sebastian (Florida) | 929.99 mi (1,496.68 km) |
| Allentown to Sebring (Florida) | 968.26 mi (1,558.26 km) |
| Allentown to Secaucus (New Jersey) | 74.95 mi (120.62 km) |
