| Ironton to Solofra | 4,887.95 mi (7,866.40 km) |
| Ironton to Somma Lombardo | 4,447.45 mi (7,157.49 km) |
| Ironton to Somma Vesuviana | 4,868.65 mi (7,835.34 km) |
| Ironton to Sommacampagna | 4,547.04 mi (7,317.75 km) |
| Ironton to Sona | 4,545.16 mi (7,314.72 km) |
| Ironton to Sondrio | 4,479.28 mi (7,208.71 km) |
| Ironton to Sora | 4,800.65 mi (7,725.89 km) |
| Ironton to Sorbolo | 4,550.07 mi (7,322.63 km) |
| Ironton to Soresina | 4,509.68 mi (7,257.63 km) |
| Ironton to Sorisole | 4,485.50 mi (7,218.71 km) |
| Ironton to Sorrento | 4,875.52 mi (7,846.39 km) |
| Ironton to Sorso | 4,614.89 mi (7,426.95 km) |
| Ironton to Sortino | 5,042.42 mi (8,115.00 km) |
| Ironton to Soverato Marina | 5,047.69 mi (8,123.48 km) |
| Ironton to Sovicille | 4,639.88 mi (7,467.16 km) |
