| South Houston to Pontedera | 5,542.72 mi (8,920.14 km) |
| South Houston to Pontinia | 5,730.36 mi (9,222.12 km) |
| South Houston to Porcari | 5,535.47 mi (8,908.48 km) |
| South Houston to Porcia | 5,539.37 mi (8,914.75 km) |
| South Houston to Pordenone | 5,541.34 mi (8,917.92 km) |
| South Houston to Portici | 5,809.05 mi (9,348.76 km) |
| South Houston to Porto Empedocle | 5,911.00 mi (9,512.83 km) |
| South Houston to Porto Recanati | 5,678.78 mi (9,139.11 km) |
| South Houston to Porto Sant'Elpidio | 5,688.72 mi (9,155.11 km) |
| South Houston to Porto Tolle | 5,565.31 mi (8,956.50 km) |
| South Houston to Porto Torres | 5,547.45 mi (8,927.76 km) |
| South Houston to Portoferraio | 5,560.14 mi (8,948.18 km) |
| South Houston to Portogruaro | 5,555.01 mi (8,939.92 km) |
| South Houston to Portomaggiore | 5,553.34 mi (8,937.24 km) |
| South Houston to Potenza | 5,878.98 mi (9,461.31 km) |
