| Herndon to Penne | 4,539.78 mi (7,306.08 km) |
| Herndon to Pergine Valsugana | 4,299.78 mi (6,919.82 km) |
| Herndon to Perugia | 4,449.81 mi (7,161.28 km) |
| Herndon to Pesaro | 4,443.76 mi (7,151.54 km) |
| Herndon to Pescantina | 4,303.55 mi (6,925.89 km) |
| Herndon to Pescara | 4,552.19 mi (7,326.04 km) |
| Herndon to Peschiera del Garda | 4,297.45 mi (6,916.07 km) |
| Herndon to Pescia | 4,348.81 mi (6,998.74 km) |
| Herndon to Petilia Policastro | 4,790.52 mi (7,709.60 km) |
| Herndon to Piacenza | 4,267.89 mi (6,868.51 km) |
| Herndon to Pianella | 4,547.39 mi (7,318.31 km) |
| Herndon to Pianezza | 4,172.87 mi (6,715.59 km) |
| Herndon to Pianiga | 4,352.78 mi (7,005.13 km) |
| Herndon to Piano di Sorrento | 4,627.89 mi (7,447.87 km) |
| Herndon to Pianoro | 4,360.35 mi (7,017.31 km) |
