| Allentown to Salisbury (New York) | 100.89 mi (162.37 km) |
| Allentown to Salisbury (North Carolina) | 436.10 mi (701.83 km) |
| Allentown to Salmon Creek (Washington) | 2,369.64 mi (3,813.56 km) |
| Allentown to Salt Lake City (Utah) | 1,896.04 mi (3,051.38 km) |
| Allentown to Sammamish (Washington) | 2,324.22 mi (3,740.46 km) |
| Allentown to San Angelo (Texas) | 1,525.27 mi (2,454.68 km) |
| Allentown to San Anselmo (California) | 2,494.76 mi (4,014.93 km) |
| Allentown to San Antonio (Texas) | 1,507.05 mi (2,425.37 km) |
| Allentown to San Benito (Texas) | 1,615.32 mi (2,599.60 km) |
| Allentown to San Bernardino (California) | 2,316.90 mi (3,728.68 km) |
| Allentown to San Bruno (California) | 2,495.86 mi (4,016.70 km) |
| Allentown to San Buenaventura (California) | 2,414.70 mi (3,886.08 km) |
| Allentown to San Carlos (California) | 2,490.41 mi (4,007.92 km) |
| Allentown to San Carlos Park (Florida) | 1,040.96 mi (1,675.27 km) |
| Allentown to San Clemente (California) | 2,352.94 mi (3,786.70 km) |
