| Round Lake Beach to Sesimbra | 4,008.64 mi (6,451.29 km) |
| Round Lake Beach to Setubal | 4,015.32 mi (6,462.03 km) |
| Round Lake Beach to Sever do Vouga | 3,961.21 mi (6,374.96 km) |
| Round Lake Beach to Silves | 4,084.96 mi (6,574.11 km) |
| Round Lake Beach to Sines | 4,037.16 mi (6,497.18 km) |
| Round Lake Beach to Sintra | 3,982.61 mi (6,409.39 km) |
| Round Lake Beach to Sobrado de Paiva | 3,955.29 mi (6,365.42 km) |
| Round Lake Beach to Sobral de Monte Agraco | 3,985.73 mi (6,414.41 km) |
| Round Lake Beach to Soure | 3,973.03 mi (6,393.97 km) |
| Round Lake Beach to Tabua | 3,989.55 mi (6,420.57 km) |
| Round Lake Beach to Tavira | 4,124.27 mi (6,637.38 km) |
| Round Lake Beach to Tomar | 3,998.80 mi (6,435.44 km) |
| Round Lake Beach to Tondela | 3,981.61 mi (6,407.78 km) |
| Round Lake Beach to Torre de Moncorvo | 4,000.37 mi (6,437.98 km) |
| Round Lake Beach to Torres Novas | 3,998.20 mi (6,434.48 km) |
