| Allentown to Sesimbra | 3,454.06 mi (5,558.78 km) |
| Allentown to Setubal | 3,461.90 mi (5,571.39 km) |
| Allentown to Sever do Vouga | 3,425.41 mi (5,512.66 km) |
| Allentown to Silves | 3,523.80 mi (5,671.00 km) |
| Allentown to Sines | 3,479.90 mi (5,600.36 km) |
| Allentown to Sintra | 3,429.68 mi (5,519.54 km) |
| Allentown to Sobrado de Paiva | 3,422.06 mi (5,507.28 km) |
| Allentown to Sobral de Monte Agraco | 3,435.04 mi (5,528.16 km) |
| Allentown to Soure | 3,431.33 mi (5,522.18 km) |
| Allentown to Tabua | 3,451.92 mi (5,555.33 km) |
| Allentown to Tavira | 3,564.96 mi (5,737.25 km) |
| Allentown to Tomar | 3,454.42 mi (5,559.36 km) |
| Allentown to Tondela | 3,444.99 mi (5,544.17 km) |
| Allentown to Torre de Moncorvo | 3,471.75 mi (5,587.24 km) |
| Allentown to Torres Novas | 3,452.52 mi (5,556.29 km) |
