| Port Huron to Penne | 4,587.56 mi (7,382.96 km) |
| Port Huron to Pergine Valsugana | 4,332.96 mi (6,973.23 km) |
| Port Huron to Perugia | 4,498.15 mi (7,239.07 km) |
| Port Huron to Pesaro | 4,485.68 mi (7,219.01 km) |
| Port Huron to Pescantina | 4,341.46 mi (6,986.90 km) |
| Port Huron to Pescara | 4,598.98 mi (7,401.34 km) |
| Port Huron to Peschiera del Garda | 4,336.13 mi (6,978.33 km) |
| Port Huron to Pescia | 4,397.20 mi (7,076.61 km) |
| Port Huron to Petilia Policastro | 4,848.55 mi (7,802.98 km) |
| Port Huron to Piacenza | 4,311.78 mi (6,939.14 km) |
| Port Huron to Pianella | 4,595.05 mi (7,395.02 km) |
| Port Huron to Pianezza | 4,222.27 mi (6,795.09 km) |
| Port Huron to Pianiga | 4,387.68 mi (7,061.30 km) |
| Port Huron to Piano di Sorrento | 4,684.86 mi (7,539.55 km) |
| Port Huron to Pianoro | 4,403.89 mi (7,087.38 km) |
