| Diamond Bar to Penne | 6,336.31 mi (10,197.31 km) |
| Diamond Bar to Pergine Valsugana | 6,058.75 mi (9,750.61 km) |
| Diamond Bar to Perugia | 6,252.13 mi (10,061.83 km) |
| Diamond Bar to Pesaro | 6,225.15 mi (10,018.42 km) |
| Diamond Bar to Pescantina | 6,078.11 mi (9,781.77 km) |
| Diamond Bar to Pescara | 6,344.90 mi (10,211.13 km) |
| Diamond Bar to Peschiera del Garda | 6,074.86 mi (9,776.54 km) |
| Diamond Bar to Pescia | 6,155.69 mi (9,906.62 km) |
| Diamond Bar to Petilia Policastro | 6,610.36 mi (10,638.34 km) |
| Diamond Bar to Piacenza | 6,063.74 mi (9,758.65 km) |
| Diamond Bar to Pianella | 6,343.23 mi (10,208.45 km) |
| Diamond Bar to Pianezza | 5,990.62 mi (9,640.96 km) |
| Diamond Bar to Pianiga | 6,114.95 mi (9,841.06 km) |
| Diamond Bar to Piano di Sorrento | 6,450.88 mi (10,381.68 km) |
| Diamond Bar to Pianoro | 6,150.89 mi (9,898.91 km) |
