| Allentown to Stephenville (Texas) | 1,385.69 mi (2,230.05 km) |
| Allentown to Sterling (Colorado) | 1,447.78 mi (2,329.98 km) |
| Allentown to Sterling (Illinois) | 743.07 mi (1,195.86 km) |
| Allentown to Sterling (Virginia) | 150.23 mi (241.77 km) |
| Allentown to Sterling Heights (Michigan) | 413.62 mi (665.66 km) |
| Allentown to Steubenville (Ohio) | 272.46 mi (438.49 km) |
| Allentown to Stevens Point (Wisconsin) | 764.76 mi (1,230.77 km) |
| Allentown to Stevenson Ranch (California) | 2,377.86 mi (3,826.80 km) |
| Allentown to Stillwater (Minnesota) | 929.71 mi (1,496.22 km) |
| Allentown to Stillwater (Oklahoma) | 1,206.65 mi (1,941.92 km) |
| Allentown to Stockbridge (Georgia) | 686.05 mi (1,104.09 km) |
| Allentown to Stockton (California) | 2,430.11 mi (3,910.89 km) |
| Allentown to Stone Ridge (Virginia) | 159.57 mi (256.81 km) |
| Allentown to Stonecrest (Georgia) | 674.35 mi (1,085.27 km) |
| Allentown to Stony Brook (New York) | 124.74 mi (200.74 km) |
