| Port Huron to Poggibonsi | 4,433.39 mi (7,134.85 km) |
| Port Huron to Poggio a Caiano | 4,415.90 mi (7,106.70 km) |
| Port Huron to Poggio Renatico | 4,394.60 mi (7,072.43 km) |
| Port Huron to Poggiomarino | 4,683.42 mi (7,537.24 km) |
| Port Huron to Poirino | 4,241.69 mi (6,826.34 km) |
| Port Huron to Policoro | 4,795.98 mi (7,718.39 km) |
| Port Huron to Polistena | 4,850.58 mi (7,806.26 km) |
| Port Huron to Pomezia | 4,562.51 mi (7,342.65 km) |
| Port Huron to Pomigliano d'Arco | 4,672.27 mi (7,519.29 km) |
| Port Huron to Pompei | 4,683.51 mi (7,537.38 km) |
| Port Huron to Ponsacco | 4,406.32 mi (7,091.29 km) |
| Port Huron to Pontassieve | 4,432.60 mi (7,133.57 km) |
| Port Huron to Ponte Buggianese | 4,401.98 mi (7,084.30 km) |
| Port Huron to Ponte San Pietro | 4,282.10 mi (6,891.37 km) |
| Port Huron to Pontecorvo | 4,619.04 mi (7,433.63 km) |
