| Port Huron to Montana | 4,907.85 mi (7,898.42 km) |
| Port Huron to Nova Zagora | 5,054.58 mi (8,134.56 km) |
| Port Huron to Novi Iskar | 4,940.73 mi (7,951.33 km) |
| Port Huron to Novi Pazar | 5,056.89 mi (8,138.27 km) |
| Port Huron to Omurtag | 5,040.38 mi (8,111.71 km) |
| Port Huron to Panagyurishte | 4,985.99 mi (8,024.18 km) |
| Port Huron to Parvomay | 5,043.50 mi (8,116.72 km) |
| Port Huron to Pavlikeni | 4,993.44 mi (8,036.17 km) |
| Port Huron to Pazardzhik | 5,005.67 mi (8,055.85 km) |
| Port Huron to Pernik | 4,938.03 mi (7,946.99 km) |
| Port Huron to Peshtera | 5,012.23 mi (8,066.41 km) |
| Port Huron to Petrich | 5,000.50 mi (8,047.52 km) |
| Port Huron to Pleven | 4,959.83 mi (7,982.07 km) |
| Port Huron to Plovdiv | 5,023.67 mi (8,084.81 km) |
| Port Huron to Pomorie | 5,109.63 mi (8,223.15 km) |
