| Huntsville to Sesimbra | 4,178.22 mi (6,724.20 km) |
| Huntsville to Setubal | 4,186.40 mi (6,737.36 km) |
| Huntsville to Sever do Vouga | 4,154.43 mi (6,685.91 km) |
| Huntsville to Silves | 4,245.52 mi (6,832.51 km) |
| Huntsville to Sines | 4,203.12 mi (6,764.26 km) |
| Huntsville to Sintra | 4,154.42 mi (6,685.89 km) |
| Huntsville to Sobrado de Paiva | 4,151.59 mi (6,681.35 km) |
| Huntsville to Sobral de Monte Agraco | 4,160.41 mi (6,695.54 km) |
| Huntsville to Soure | 4,159.05 mi (6,693.35 km) |
| Huntsville to Tabua | 4,180.51 mi (6,727.89 km) |
| Huntsville to Tavira | 4,287.23 mi (6,899.63 km) |
| Huntsville to Tomar | 4,181.45 mi (6,729.40 km) |
| Huntsville to Tondela | 4,173.81 mi (6,717.09 km) |
| Huntsville to Torre de Moncorvo | 4,202.01 mi (6,762.48 km) |
| Huntsville to Torres Novas | 4,179.22 mi (6,725.81 km) |
