| Port Huron to Pandino | 4,292.12 mi (6,907.50 km) |
| Port Huron to Paola | 4,806.63 mi (7,735.52 km) |
| Port Huron to Parabiago | 4,261.82 mi (6,858.73 km) |
| Port Huron to Parabita | 4,862.10 mi (7,824.79 km) |
| Port Huron to Parma | 4,346.82 mi (6,995.53 km) |
| Port Huron to Partanna | 4,745.81 mi (7,637.64 km) |
| Port Huron to Partinico | 4,741.67 mi (7,630.98 km) |
| Port Huron to Pasian di Prato | 4,410.61 mi (7,098.19 km) |
| Port Huron to Paterno | 4,838.33 mi (7,786.53 km) |
| Port Huron to Patti | 4,815.97 mi (7,750.55 km) |
| Port Huron to Paullo | 4,285.45 mi (6,896.77 km) |
| Port Huron to Pavia | 4,284.56 mi (6,895.33 km) |
| Port Huron to Pavullo nel Frignano | 4,385.78 mi (7,058.22 km) |
| Port Huron to Pedara | 4,843.17 mi (7,794.33 km) |
| Port Huron to Pellezzano | 4,695.17 mi (7,556.14 km) |
