| Romeoville to Poggibonsi | 4,718.73 mi (7,594.06 km) |
| Romeoville to Poggio a Caiano | 4,700.74 mi (7,565.11 km) |
| Romeoville to Poggio Renatico | 4,677.49 mi (7,527.70 km) |
| Romeoville to Poggiomarino | 4,969.84 mi (7,998.18 km) |
| Romeoville to Poirino | 4,527.41 mi (7,286.16 km) |
| Romeoville to Policoro | 5,081.32 mi (8,177.59 km) |
| Romeoville to Polistena | 5,138.99 mi (8,270.41 km) |
| Romeoville to Pomezia | 4,849.45 mi (7,804.43 km) |
| Romeoville to Pomigliano d'Arco | 4,958.65 mi (7,980.18 km) |
| Romeoville to Pompei | 4,970.04 mi (7,998.51 km) |
| Romeoville to Ponsacco | 4,691.86 mi (7,550.82 km) |
| Romeoville to Pontassieve | 4,717.19 mi (7,591.58 km) |
| Romeoville to Ponte Buggianese | 4,687.06 mi (7,543.10 km) |
| Romeoville to Ponte San Pietro | 4,565.04 mi (7,346.71 km) |
| Romeoville to Pontecorvo | 4,905.27 mi (7,894.27 km) |
