| Romeoville to Roy (Utah) | 1,237.59 mi (1,991.71 km) |
| Romeoville to Royal Kunia (Hawaii) | 4,230.84 mi (6,808.88 km) |
| Romeoville to Royal Oak (Michigan) | 260.76 mi (419.65 km) |
| Romeoville to Royal Palm Beach (Florida) | 1,124.14 mi (1,809.13 km) |
| Romeoville to Royse City (Texas) | 748.63 mi (1,204.80 km) |
| Romeoville to Ruskin (Florida) | 1,014.19 mi (1,632.18 km) |
| Romeoville to Russellville (Alabama) | 492.79 mi (793.07 km) |
| Romeoville to Russellville (Arkansas) | 516.64 mi (831.46 km) |
| Romeoville to Ruston (Louisiana) | 676.31 mi (1,088.42 km) |
| Romeoville to Rutherford (New Jersey) | 728.57 mi (1,172.52 km) |
| Romeoville to Rutland (Vermont) | 779.71 mi (1,254.83 km) |
| Romeoville to Sabana Grande (Puerto Rico) | 2,049.71 mi (3,298.69 km) |
| Romeoville to Sachse (Texas) | 757.54 mi (1,219.14 km) |
| Romeoville to Saco (Maine) | 905.10 mi (1,456.62 km) |
| Romeoville to Sacramento (California) | 1,765.13 mi (2,840.70 km) |
