| Williamsport to Pontedera | 4,248.85 mi (6,837.87 km) |
| Williamsport to Pontinia | 4,435.85 mi (7,138.81 km) |
| Williamsport to Porcari | 4,241.74 mi (6,826.43 km) |
| Williamsport to Porcia | 4,249.54 mi (6,838.98 km) |
| Williamsport to Pordenone | 4,251.51 mi (6,842.14 km) |
| Williamsport to Portici | 4,514.57 mi (7,265.50 km) |
| Williamsport to Porto Empedocle | 4,617.19 mi (7,430.65 km) |
| Williamsport to Porto Recanati | 4,386.00 mi (7,058.59 km) |
| Williamsport to Porto Sant'Elpidio | 4,395.81 mi (7,074.38 km) |
| Williamsport to Porto Tolle | 4,273.65 mi (6,877.78 km) |
| Williamsport to Porto Torres | 4,253.06 mi (6,844.63 km) |
| Williamsport to Portoferraio | 4,265.68 mi (6,864.95 km) |
| Williamsport to Portogruaro | 4,265.03 mi (6,863.90 km) |
| Williamsport to Portomaggiore | 4,261.05 mi (6,857.49 km) |
| Williamsport to Potenza | 4,584.79 mi (7,378.50 km) |
