| River Grove to Sesimbra | 4,010.67 mi (6,454.55 km) |
| River Grove to Setubal | 4,017.45 mi (6,465.47 km) |
| River Grove to Sever do Vouga | 3,964.81 mi (6,380.75 km) |
| River Grove to Silves | 4,086.44 mi (6,576.48 km) |
| River Grove to Sines | 4,038.96 mi (6,500.08 km) |
| River Grove to Sintra | 3,984.77 mi (6,412.86 km) |
| River Grove to Sobrado de Paiva | 3,959.10 mi (6,371.55 km) |
| River Grove to Sobral de Monte Agraco | 3,988.09 mi (6,418.21 km) |
| River Grove to Soure | 3,976.15 mi (6,398.99 km) |
| River Grove to Tabua | 3,993.02 mi (6,426.14 km) |
| River Grove to Tavira | 4,125.93 mi (6,640.05 km) |
| River Grove to Tomar | 4,001.70 mi (6,440.12 km) |
| River Grove to Tondela | 3,985.15 mi (6,413.48 km) |
| River Grove to Torre de Moncorvo | 4,004.58 mi (6,444.74 km) |
| River Grove to Torres Novas | 4,000.99 mi (6,438.98 km) |
