| Marshalltown to Sesimbra | 4,240.67 mi (6,824.70 km) |
| Marshalltown to Setubal | 4,247.07 mi (6,835.01 km) |
| Marshalltown to Sever do Vouga | 4,189.00 mi (6,741.54 km) |
| Marshalltown to Silves | 4,318.34 mi (6,949.70 km) |
| Marshalltown to Sines | 4,269.74 mi (6,871.49 km) |
| Marshalltown to Sintra | 4,214.31 mi (6,782.28 km) |
| Marshalltown to Sobrado de Paiva | 4,182.48 mi (6,731.05 km) |
| Marshalltown to Sobral de Monte Agraco | 4,216.92 mi (6,786.48 km) |
| Marshalltown to Soure | 4,202.17 mi (6,762.74 km) |
| Marshalltown to Tabua | 4,217.71 mi (6,787.75 km) |
| Marshalltown to Tavira | 4,357.17 mi (7,012.19 km) |
| Marshalltown to Tomar | 4,228.51 mi (6,805.13 km) |
| Marshalltown to Tondela | 4,209.54 mi (6,774.60 km) |
| Marshalltown to Torre de Moncorvo | 4,226.36 mi (6,801.67 km) |
| Marshalltown to Torres Novas | 4,228.21 mi (6,804.65 km) |
