| Romeoville to Yonkers (New York) | 739.56 mi (1,190.21 km) |
| Romeoville to Yorba Linda (California) | 1,696.93 mi (2,730.95 km) |
| Romeoville to York (Pennsylvania) | 605.18 mi (973.94 km) |
| Romeoville to Yorktown (Indiana) | 168.14 mi (270.59 km) |
| Romeoville to Yorkville (Illinois) | 18.20 mi (29.29 km) |
| Romeoville to Youngstown (Ohio) | 388.12 mi (624.62 km) |
| Romeoville to Youngsville (Louisiana) | 826.10 mi (1,329.49 km) |
| Romeoville to Ypsilanti (Michigan) | 234.02 mi (376.63 km) |
| Romeoville to Yuba City (California) | 1,762.37 mi (2,836.27 km) |
| Romeoville to Yucaipa (California) | 1,655.21 mi (2,663.80 km) |
| Romeoville to Yucca Valley (California) | 1,620.72 mi (2,608.29 km) |
| Romeoville to Yukon (Oklahoma) | 670.69 mi (1,079.37 km) |
| Romeoville to Yulee (Florida) | 842.05 mi (1,355.15 km) |
| Romeoville to Yuma (Arizona) | 1,577.09 mi (2,538.08 km) |
| Romeoville to Zachary (Louisiana) | 776.67 mi (1,249.93 km) |
