| Marshalltown to Sestu | 4,993.08 mi (8,035.58 km) |
| Marshalltown to Settimo Torinese | 4,685.92 mi (7,541.26 km) |
| Marshalltown to Seveso | 4,716.31 mi (7,590.17 km) |
| Marshalltown to Sezze | 5,051.19 mi (8,129.10 km) |
| Marshalltown to Siano | 5,146.28 mi (8,282.14 km) |
| Marshalltown to Siena | 4,901.92 mi (7,888.88 km) |
| Marshalltown to Signa | 4,872.31 mi (7,841.23 km) |
| Marshalltown to Silea | 4,833.71 mi (7,779.10 km) |
| Marshalltown to Silvi Paese | 5,042.88 mi (8,115.73 km) |
| Marshalltown to Sinalunga | 4,921.85 mi (7,920.96 km) |
| Marshalltown to Siniscola | 4,960.56 mi (7,983.25 km) |
| Marshalltown to Sinnai | 4,997.47 mi (8,042.65 km) |
| Marshalltown to Siracusa | 5,346.13 mi (8,603.77 km) |
| Marshalltown to Solaro | 4,715.51 mi (7,588.89 km) |
| Marshalltown to Soliera | 4,823.28 mi (7,762.32 km) |
