| Middlesex to Sesimbra | 3,406.62 mi (5,482.42 km) |
| Middlesex to Setubal | 3,414.52 mi (5,495.13 km) |
| Middlesex to Sever do Vouga | 3,379.05 mi (5,438.05 km) |
| Middlesex to Silves | 3,475.96 mi (5,594.02 km) |
| Middlesex to Sines | 3,432.29 mi (5,523.74 km) |
| Middlesex to Sintra | 3,382.34 mi (5,443.35 km) |
| Middlesex to Sobrado de Paiva | 3,375.86 mi (5,432.92 km) |
| Middlesex to Sobral de Monte Agraco | 3,387.81 mi (5,452.16 km) |
| Middlesex to Soure | 3,384.62 mi (5,447.02 km) |
| Middlesex to Tabua | 3,405.44 mi (5,480.52 km) |
| Middlesex to Tavira | 3,517.21 mi (5,660.40 km) |
| Middlesex to Tomar | 3,407.55 mi (5,483.92 km) |
| Middlesex to Tondela | 3,398.57 mi (5,469.47 km) |
| Middlesex to Torre de Moncorvo | 3,425.79 mi (5,513.28 km) |
| Middlesex to Torres Novas | 3,405.57 mi (5,480.74 km) |
