| Silver Spring to Pontedera | 4,337.13 mi (6,979.93 km) |
| Silver Spring to Pontinia | 4,521.63 mi (7,276.85 km) |
| Silver Spring to Porcari | 4,330.39 mi (6,969.09 km) |
| Silver Spring to Porcia | 4,344.45 mi (6,991.71 km) |
| Silver Spring to Pordenone | 4,346.41 mi (6,994.87 km) |
| Silver Spring to Portici | 4,600.43 mi (7,403.67 km) |
| Silver Spring to Porto Empedocle | 4,694.86 mi (7,555.64 km) |
| Silver Spring to Porto Recanati | 4,476.58 mi (7,204.37 km) |
| Silver Spring to Porto Sant'Elpidio | 4,486.13 mi (7,219.73 km) |
| Silver Spring to Porto Tolle | 4,366.17 mi (7,026.68 km) |
| Silver Spring to Porto Torres | 4,332.95 mi (6,973.22 km) |
| Silver Spring to Portoferraio | 4,351.83 mi (7,003.59 km) |
| Silver Spring to Portogruaro | 4,359.73 mi (7,016.31 km) |
| Silver Spring to Portomaggiore | 4,352.59 mi (7,004.81 km) |
| Silver Spring to Potenza | 4,671.75 mi (7,518.46 km) |
