| Ironton to Sesena | 4,073.61 mi (6,555.84 km) |
| Ironton to Sestao | 4,010.00 mi (6,453.46 km) |
| Ironton to Sevilla | 4,051.79 mi (6,520.73 km) |
| Ironton to Sevilla La Nueva | 4,050.53 mi (6,518.69 km) |
| Ironton to Silla | 4,252.37 mi (6,843.53 km) |
| Ironton to Silleda | 3,785.34 mi (6,091.92 km) |
| Ironton to Sitges | 4,294.06 mi (6,910.62 km) |
| Ironton to Socuellamos | 4,141.72 mi (6,665.45 km) |
| Ironton to Soller | 4,384.16 mi (7,055.63 km) |
| Ironton to Solsona | 4,256.31 mi (6,849.86 km) |
| Ironton to Son Servera | 4,419.66 mi (7,112.76 km) |
| Ironton to Sonseca | 4,074.05 mi (6,556.54 km) |
| Ironton to Sopelana | 4,009.15 mi (6,452.10 km) |
| Ironton to Soria | 4,080.62 mi (6,567.12 km) |
| Ironton to Suances | 3,958.78 mi (6,371.04 km) |
