| Romeoville to Pandino | 4,575.61 mi (7,363.73 km) |
| Romeoville to Paola | 5,093.75 mi (8,197.59 km) |
| Romeoville to Parabiago | 4,545.54 mi (7,315.34 km) |
| Romeoville to Parabita | 5,146.23 mi (8,282.06 km) |
| Romeoville to Parma | 4,630.66 mi (7,452.33 km) |
| Romeoville to Partanna | 5,037.73 mi (8,107.44 km) |
| Romeoville to Partinico | 5,033.02 mi (8,099.86 km) |
| Romeoville to Pasian di Prato | 4,689.63 mi (7,547.23 km) |
| Romeoville to Paterno | 5,128.82 mi (8,254.04 km) |
| Romeoville to Patti | 5,105.68 mi (8,216.80 km) |
| Romeoville to Paullo | 4,569.04 mi (7,353.16 km) |
| Romeoville to Pavia | 4,568.75 mi (7,352.70 km) |
| Romeoville to Pavullo nel Frignano | 4,669.97 mi (7,515.60 km) |
| Romeoville to Pedara | 5,133.46 mi (8,261.51 km) |
| Romeoville to Pellezzano | 4,981.49 mi (8,016.93 km) |
