| Romeoville to Santa Rosa (California) | 1,831.45 mi (2,947.43 km) |
| Romeoville to Santaquin (Utah) | 1,240.65 mi (1,996.63 km) |
| Romeoville to Santee (California) | 1,690.73 mi (2,720.97 km) |
| Romeoville to Sapulpa (Oklahoma) | 579.53 mi (932.67 km) |
| Romeoville to Saraland (Alabama) | 745.10 mi (1,199.11 km) |
| Romeoville to Sarasota (Florida) | 1,036.40 mi (1,667.93 km) |
| Romeoville to Sarasota Springs (Florida) | 1,039.57 mi (1,673.03 km) |
| Romeoville to Saratoga (California) | 1,822.95 mi (2,933.75 km) |
| Romeoville to Saratoga Springs (New York) | 737.11 mi (1,186.26 km) |
| Romeoville to Saratoga Springs (Utah) | 1,241.32 mi (1,997.71 km) |
| Romeoville to Sartell (Minnesota) | 411.61 mi (662.42 km) |
| Romeoville to Satellite Beach (Florida) | 1,021.00 mi (1,643.14 km) |
| Romeoville to Sauk Rapids (Minnesota) | 408.21 mi (656.96 km) |
| Romeoville to Sault Ste. Marie (Michigan) | 382.70 mi (615.90 km) |
| Romeoville to Savage (Minnesota) | 341.70 mi (549.92 km) |
