| Potomac to Penne | 4,529.62 mi (7,289.73 km) |
| Potomac to Pergine Valsugana | 4,289.78 mi (6,903.73 km) |
| Potomac to Perugia | 4,439.65 mi (7,144.93 km) |
| Potomac to Pesaro | 4,433.66 mi (7,135.29 km) |
| Potomac to Pescantina | 4,293.50 mi (6,909.72 km) |
| Potomac to Pescara | 4,542.04 mi (7,309.71 km) |
| Potomac to Peschiera del Garda | 4,287.39 mi (6,899.89 km) |
| Potomac to Pescia | 4,338.66 mi (6,982.40 km) |
| Potomac to Petilia Policastro | 4,780.26 mi (7,693.08 km) |
| Potomac to Piacenza | 4,257.78 mi (6,852.24 km) |
| Potomac to Pianella | 4,537.23 mi (7,301.96 km) |
| Potomac to Pianezza | 4,162.72 mi (6,699.25 km) |
| Potomac to Pianiga | 4,342.76 mi (6,989.00 km) |
| Potomac to Piano di Sorrento | 4,617.65 mi (7,431.38 km) |
| Potomac to Pianoro | 4,350.24 mi (7,001.04 km) |
