| Dunstable to Sesimbra | 1,016.79 mi (1,636.36 km) |
| Dunstable to Setubal | 1,007.57 mi (1,621.52 km) |
| Dunstable to Sever do Vouga | 855.56 mi (1,376.89 km) |
| Dunstable to Silves | 1,086.34 mi (1,748.30 km) |
| Dunstable to Sines | 1,043.89 mi (1,679.98 km) |
| Dunstable to Sintra | 999.78 mi (1,608.98 km) |
| Dunstable to Sobrado de Paiva | 834.46 mi (1,342.93 km) |
| Dunstable to Sobral de Monte Agraco | 980.97 mi (1,578.72 km) |
| Dunstable to Soure | 904.51 mi (1,455.67 km) |
| Dunstable to Tabua | 872.64 mi (1,404.38 km) |
| Dunstable to Tavira | 1,077.96 mi (1,734.82 km) |
| Dunstable to Tomar | 929.04 mi (1,495.14 km) |
| Dunstable to Tondela | 863.67 mi (1,389.94 km) |
| Dunstable to Torre de Moncorvo | 801.61 mi (1,290.06 km) |
| Dunstable to Torres Novas | 939.88 mi (1,512.59 km) |
