| Trowbridge to Sesimbra | 950.45 mi (1,529.61 km) |
| Trowbridge to Setubal | 941.67 mi (1,515.47 km) |
| Trowbridge to Sever do Vouga | 788.19 mi (1,268.47 km) |
| Trowbridge to Silves | 1,023.10 mi (1,646.52 km) |
| Trowbridge to Sines | 978.72 mi (1,575.10 km) |
| Trowbridge to Sintra | 932.29 mi (1,500.37 km) |
| Trowbridge to Sobrado de Paiva | 766.92 mi (1,234.25 km) |
| Trowbridge to Sobral de Monte Agraco | 913.81 mi (1,470.63 km) |
| Trowbridge to Soure | 837.37 mi (1,347.62 km) |
| Trowbridge to Tabua | 806.78 mi (1,298.38 km) |
| Trowbridge to Tavira | 1,016.96 mi (1,636.64 km) |
| Trowbridge to Tomar | 863.09 mi (1,389.01 km) |
| Trowbridge to Tondela | 797.43 mi (1,283.34 km) |
| Trowbridge to Torre de Moncorvo | 737.32 mi (1,186.60 km) |
| Trowbridge to Torres Novas | 873.78 mi (1,406.22 km) |
