| Marshalltown to Sesena | 4,418.46 mi (7,110.83 km) |
| Marshalltown to Sestao | 4,325.10 mi (6,960.58 km) |
| Marshalltown to Sevilla | 4,428.00 mi (7,126.19 km) |
| Marshalltown to Sevilla La Nueva | 4,394.58 mi (7,072.39 km) |
| Marshalltown to Silla | 4,590.85 mi (7,388.26 km) |
| Marshalltown to Silleda | 4,123.84 mi (6,636.69 km) |
| Marshalltown to Sitges | 4,608.87 mi (7,417.26 km) |
| Marshalltown to Socuellamos | 4,489.81 mi (7,225.65 km) |
| Marshalltown to Soller | 4,707.23 mi (7,575.56 km) |
| Marshalltown to Solsona | 4,565.96 mi (7,348.20 km) |
| Marshalltown to Son Servera | 4,741.24 mi (7,630.28 km) |
| Marshalltown to Sonseca | 4,423.13 mi (7,118.34 km) |
| Marshalltown to Sopelana | 4,323.54 mi (6,958.07 km) |
| Marshalltown to Soria | 4,407.08 mi (7,092.51 km) |
| Marshalltown to Suances | 4,276.48 mi (6,882.33 km) |
