| Romeoville to St. Simons (Georgia) | 812.45 mi (1,307.51 km) |
| Romeoville to Stafford (Texas) | 928.46 mi (1,494.21 km) |
| Romeoville to Stallings (North Carolina) | 604.12 mi (972.23 km) |
| Romeoville to Stamford (Connecticut) | 754.00 mi (1,213.44 km) |
| Romeoville to Stanford (California) | 1,826.52 mi (2,939.50 km) |
| Romeoville to Stanton (California) | 1,711.07 mi (2,753.70 km) |
| Romeoville to Star (Idaho) | 1,442.40 mi (2,321.32 km) |
| Romeoville to Starkville (Mississippi) | 565.97 mi (910.84 km) |
| Romeoville to State College (Pennsylvania) | 535.25 mi (861.40 km) |
| Romeoville to Staten Island (New York) | 729.04 mi (1,173.28 km) |
| Romeoville to Statesboro (Georgia) | 724.22 mi (1,165.52 km) |
| Romeoville to Statesville (North Carolina) | 560.95 mi (902.76 km) |
| Romeoville to Staunton (Virginia) | 535.46 mi (861.74 km) |
| Romeoville to Steamboat Springs (Colorado) | 976.91 mi (1,572.19 km) |
| Romeoville to Steiner Ranch (Texas) | 950.30 mi (1,529.36 km) |
