| South Portland to Piazza Armerina | 4,270.20 mi (6,872.22 km) |
| South Portland to Piazzola sul Brenta | 3,853.40 mi (6,201.45 km) |
| South Portland to Pietrasanta | 3,842.44 mi (6,183.81 km) |
| South Portland to Pieve di Soligo | 3,858.09 mi (6,208.99 km) |
| South Portland to Pinerolo | 3,686.34 mi (5,932.59 km) |
| South Portland to Pioltello | 3,751.81 mi (6,037.95 km) |
| South Portland to Piombino | 3,890.98 mi (6,261.92 km) |
| South Portland to Piombino Dese | 3,860.56 mi (6,212.98 km) |
| South Portland to Piossasco | 3,688.65 mi (5,936.30 km) |
| South Portland to Piove di Sacco | 3,872.89 mi (6,232.81 km) |
| South Portland to Pisa | 3,858.21 mi (6,209.19 km) |
| South Portland to Pisticci | 4,247.91 mi (6,836.35 km) |
| South Portland to Pistoia | 3,872.86 mi (6,232.77 km) |
| South Portland to Pizzo | 4,296.48 mi (6,914.52 km) |
| South Portland to Podenzano | 3,785.13 mi (6,091.58 km) |
