| Allentown to South Plainfield (New Jersey) | 55.66 mi (89.58 km) |
| Allentown to South Portland (Maine) | 338.45 mi (544.68 km) |
| Allentown to South Riding (Virginia) | 158.91 mi (255.74 km) |
| Allentown to South River (New Jersey) | 58.56 mi (94.25 km) |
| Allentown to South Salt Lake (Utah) | 1,895.39 mi (3,050.34 km) |
| Allentown to South San Francisco (California) | 2,494.60 mi (4,014.67 km) |
| Allentown to South San Jose Hills (California) | 2,352.45 mi (3,785.91 km) |
| Allentown to South Sioux City (Nebraska) | 1,087.79 mi (1,750.63 km) |
| Allentown to South St. Paul (Minnesota) | 937.12 mi (1,508.15 km) |
| Allentown to South Valley (New Mexico) | 1,737.10 mi (2,795.60 km) |
| Allentown to South Venice (Florida) | 1,016.67 mi (1,636.16 km) |
| Allentown to South Whittier (California) | 2,361.30 mi (3,800.15 km) |
| Allentown to South Yarmouth (Massachusetts) | 284.30 mi (457.54 km) |
| Allentown to Southaven (Mississippi) | 881.36 mi (1,418.41 km) |
| Allentown to Southchase (Florida) | 908.24 mi (1,461.66 km) |
