| Romeoville to Sereflikochisar | 5,771.61 mi (9,288.51 km) |
| Romeoville to Serik | 5,791.98 mi (9,321.29 km) |
| Romeoville to Serinhisar | 5,690.90 mi (9,158.61 km) |
| Romeoville to Serinyol | 6,001.50 mi (9,658.49 km) |
| Romeoville to Seydisehir | 5,792.77 mi (9,322.57 km) |
| Romeoville to Seyhan | 5,938.27 mi (9,556.72 km) |
| Romeoville to Seyitgazi | 5,646.02 mi (9,086.40 km) |
| Romeoville to Siirt | 6,103.63 mi (9,822.84 km) |
| Romeoville to Sile | 5,518.94 mi (8,881.87 km) |
| Romeoville to Silifke | 5,921.90 mi (9,530.37 km) |
| Romeoville to Silivri | 5,476.07 mi (8,812.88 km) |
| Romeoville to Silopi | 6,158.39 mi (9,910.98 km) |
| Romeoville to Simav | 5,603.55 mi (9,018.04 km) |
| Romeoville to Sinanpasa | 5,666.22 mi (9,118.89 km) |
| Romeoville to Sindirgi | 5,566.28 mi (8,958.06 km) |
