| Langley Park to Pontedera | 4,335.91 mi (6,977.98 km) |
| Langley Park to Pontinia | 4,520.37 mi (7,274.83 km) |
| Langley Park to Porcari | 4,329.18 mi (6,967.14 km) |
| Langley Park to Porcia | 4,343.34 mi (6,989.93 km) |
| Langley Park to Pordenone | 4,345.30 mi (6,993.08 km) |
| Langley Park to Portici | 4,599.17 mi (7,401.65 km) |
| Langley Park to Porto Empedocle | 4,693.48 mi (7,553.43 km) |
| Langley Park to Porto Recanati | 4,475.40 mi (7,202.47 km) |
| Langley Park to Porto Sant'Elpidio | 4,484.95 mi (7,217.82 km) |
| Langley Park to Porto Tolle | 4,365.03 mi (7,024.83 km) |
| Langley Park to Porto Torres | 4,331.61 mi (6,971.06 km) |
| Langley Park to Portoferraio | 4,350.58 mi (7,001.58 km) |
| Langley Park to Portogruaro | 4,358.62 mi (7,014.53 km) |
| Langley Park to Portomaggiore | 4,351.42 mi (7,002.94 km) |
| Langley Park to Potenza | 4,670.52 mi (7,516.47 km) |
