| Port Huron to Ovidiu | 5,061.13 mi (8,145.11 km) |
| Port Huron to Pantelimon | 4,968.43 mi (7,995.92 km) |
| Port Huron to Pascani | 4,855.14 mi (7,813.59 km) |
| Port Huron to Pechea | 4,968.87 mi (7,996.62 km) |
| Port Huron to Pecica | 4,703.14 mi (7,568.98 km) |
| Port Huron to Petrila | 4,821.40 mi (7,759.29 km) |
| Port Huron to Petrosani | 4,821.43 mi (7,759.34 km) |
| Port Huron to Piatra Neamt | 4,857.90 mi (7,818.04 km) |
| Port Huron to Pitesti | 4,901.10 mi (7,887.56 km) |
| Port Huron to Ploiesti | 4,938.89 mi (7,948.38 km) |
| Port Huron to Podu Iloaiei | 4,875.21 mi (7,845.90 km) |
| Port Huron to Poiana Mare | 4,878.50 mi (7,851.19 km) |
| Port Huron to Poienile de sub Munte | 4,749.42 mi (7,643.46 km) |
| Port Huron to Popesti-Leordeni | 4,970.66 mi (7,999.51 km) |
| Port Huron to Pucioasa | 4,911.55 mi (7,904.38 km) |
