| Herndon to Poggibonsi | 4,383.61 mi (7,054.75 km) |
| Herndon to Poggio a Caiano | 4,368.06 mi (7,029.71 km) |
| Herndon to Poggio Renatico | 4,353.87 mi (7,006.88 km) |
| Herndon to Poggiomarino | 4,627.86 mi (7,447.83 km) |
| Herndon to Poirino | 4,191.90 mi (6,746.21 km) |
| Herndon to Policoro | 4,743.70 mi (7,634.24 km) |
| Herndon to Polistena | 4,786.18 mi (7,702.61 km) |
| Herndon to Pomezia | 4,505.78 mi (7,251.35 km) |
| Herndon to Pomigliano d'Arco | 4,616.93 mi (7,430.22 km) |
| Herndon to Pompei | 4,627.51 mi (7,447.25 km) |
| Herndon to Ponsacco | 4,355.99 mi (7,010.29 km) |
| Herndon to Pontassieve | 4,385.56 mi (7,057.88 km) |
| Herndon to Ponte Buggianese | 4,353.38 mi (7,006.08 km) |
| Herndon to Ponte San Pietro | 4,242.07 mi (6,826.95 km) |
| Herndon to Pontecorvo | 4,564.64 mi (7,346.08 km) |
