| River Forest to Sesimbra | 4,010.67 mi (6,454.55 km) |
| River Forest to Setubal | 4,017.46 mi (6,465.48 km) |
| River Forest to Sever do Vouga | 3,964.92 mi (6,380.91 km) |
| River Forest to Silves | 4,086.40 mi (6,576.42 km) |
| River Forest to Sines | 4,038.95 mi (6,500.05 km) |
| River Forest to Sintra | 3,984.78 mi (6,412.88 km) |
| River Forest to Sobrado de Paiva | 3,959.21 mi (6,371.74 km) |
| River Forest to Sobral de Monte Agraco | 3,988.11 mi (6,418.24 km) |
| River Forest to Soure | 3,976.22 mi (6,399.10 km) |
| River Forest to Tabua | 3,993.11 mi (6,426.29 km) |
| River Forest to Tavira | 4,125.91 mi (6,640.01 km) |
| River Forest to Tomar | 4,001.76 mi (6,440.21 km) |
| River Forest to Tondela | 3,985.25 mi (6,413.64 km) |
| River Forest to Torre de Moncorvo | 4,004.72 mi (6,444.97 km) |
| River Forest to Torres Novas | 4,001.04 mi (6,439.06 km) |
