| Towcester to Sesimbra | 1,022.98 mi (1,646.32 km) |
| Towcester to Setubal | 1,013.97 mi (1,631.83 km) |
| Towcester to Sever do Vouga | 861.16 mi (1,385.91 km) |
| Towcester to Silves | 1,094.04 mi (1,760.68 km) |
| Towcester to Sines | 1,050.66 mi (1,690.88 km) |
| Towcester to Sintra | 1,005.37 mi (1,617.99 km) |
| Towcester to Sobrado de Paiva | 839.97 mi (1,351.79 km) |
| Towcester to Sobral de Monte Agraco | 986.73 mi (1,587.98 km) |
| Towcester to Soure | 910.25 mi (1,464.91 km) |
| Towcester to Tabua | 879.01 mi (1,414.63 km) |
| Towcester to Tavira | 1,086.65 mi (1,748.80 km) |
| Towcester to Tomar | 935.39 mi (1,505.36 km) |
| Towcester to Tondela | 869.85 mi (1,399.89 km) |
| Towcester to Torre de Moncorvo | 808.70 mi (1,301.47 km) |
| Towcester to Torres Novas | 946.16 mi (1,522.70 km) |
