| Williamstown to Penne | 4,406.12 mi (7,090.96 km) |
| Williamstown to Pergine Valsugana | 4,167.69 mi (6,707.24 km) |
| Williamstown to Perugia | 4,316.14 mi (6,946.16 km) |
| Williamstown to Pesaro | 4,310.69 mi (6,937.39 km) |
| Williamstown to Pescantina | 4,170.97 mi (6,712.53 km) |
| Williamstown to Pescara | 4,418.61 mi (7,111.06 km) |
| Williamstown to Peschiera del Garda | 4,164.79 mi (6,702.59 km) |
| Williamstown to Pescia | 4,215.20 mi (6,783.70 km) |
| Williamstown to Petilia Policastro | 4,655.86 mi (7,492.88 km) |
| Williamstown to Piacenza | 4,134.74 mi (6,654.23 km) |
| Williamstown to Pianella | 4,413.72 mi (7,103.20 km) |
| Williamstown to Pianezza | 4,039.27 mi (6,500.57 km) |
| Williamstown to Pianiga | 4,220.48 mi (6,792.20 km) |
| Williamstown to Piano di Sorrento | 4,493.39 mi (7,231.41 km) |
| Williamstown to Pianoro | 4,227.18 mi (6,802.99 km) |
