| Three Lakes to Sesimbra | 4,166.46 mi (6,705.27 km) |
| Three Lakes to Setubal | 4,176.44 mi (6,721.33 km) |
| Three Lakes to Sever do Vouga | 4,177.07 mi (6,722.34 km) |
| Three Lakes to Silves | 4,218.54 mi (6,789.09 km) |
| Three Lakes to Sines | 4,185.31 mi (6,735.61 km) |
| Three Lakes to Sintra | 4,146.70 mi (6,673.47 km) |
| Three Lakes to Sobrado de Paiva | 4,178.75 mi (6,725.04 km) |
| Three Lakes to Sobral de Monte Agraco | 4,156.53 mi (6,689.28 km) |
| Three Lakes to Soure | 4,171.28 mi (6,713.03 km) |
| Three Lakes to Tabua | 4,198.95 mi (6,757.56 km) |
| Three Lakes to Tavira | 4,262.06 mi (6,859.13 km) |
| Three Lakes to Tomar | 4,188.05 mi (6,740.02 km) |
| Three Lakes to Tondela | 4,194.26 mi (6,750.02 km) |
| Three Lakes to Torre de Moncorvo | 4,234.90 mi (6,815.41 km) |
| Three Lakes to Torres Novas | 4,183.59 mi (6,732.83 km) |
