| Port Huron to Pontedera | 4,404.46 mi (7,088.30 km) |
| Port Huron to Pontinia | 4,595.74 mi (7,396.13 km) |
| Port Huron to Porcari | 4,396.62 mi (7,075.68 km) |
| Port Huron to Porcia | 4,391.22 mi (7,066.98 km) |
| Port Huron to Pordenone | 4,393.19 mi (7,070.16 km) |
| Port Huron to Portici | 4,674.00 mi (7,522.08 km) |
| Port Huron to Porto Empedocle | 4,791.86 mi (7,711.76 km) |
| Port Huron to Porto Recanati | 4,536.33 mi (7,300.52 km) |
| Port Huron to Porto Sant'Elpidio | 4,546.64 mi (7,317.11 km) |
| Port Huron to Porto Tolle | 4,420.35 mi (7,113.86 km) |
| Port Huron to Porto Torres | 4,424.93 mi (7,121.24 km) |
| Port Huron to Portoferraio | 4,425.50 mi (7,122.15 km) |
| Port Huron to Portogruaro | 4,407.07 mi (7,092.49 km) |
| Port Huron to Portomaggiore | 4,409.86 mi (7,096.99 km) |
| Port Huron to Potenza | 4,741.73 mi (7,631.08 km) |
