| Romeoville to Imola | 4,703.81 mi (7,570.05 km) |
| Romeoville to Impruneta | 4,713.61 mi (7,585.82 km) |
| Romeoville to Induno Olona | 4,529.35 mi (7,289.28 km) |
| Romeoville to Inverigo | 4,549.06 mi (7,321.01 km) |
| Romeoville to Inveruno | 4,543.37 mi (7,311.84 km) |
| Romeoville to Inzago | 4,567.59 mi (7,350.83 km) |
| Romeoville to Iseo | 4,584.81 mi (7,378.53 km) |
| Romeoville to Isernia | 4,921.98 mi (7,921.16 km) |
| Romeoville to Isola Capo Rizzuto | 5,155.10 mi (8,296.34 km) |
| Romeoville to Isola del Liri | 4,892.00 mi (7,872.91 km) |
| Romeoville to Isola della Scala | 4,638.10 mi (7,464.30 km) |
| Romeoville to Isola Vicentina | 4,640.06 mi (7,467.46 km) |
| Romeoville to Ispica | 5,164.26 mi (8,311.08 km) |
| Romeoville to Istrana | 4,663.03 mi (7,504.42 km) |
| Romeoville to Itri | 4,907.73 mi (7,898.22 km) |
