| Harrow Weald to Penne | 919.40 mi (1,479.63 km) |
| Harrow Weald to Pergine Valsugana | 649.44 mi (1,045.17 km) |
| Harrow Weald to Perugia | 833.90 mi (1,342.04 km) |
| Harrow Weald to Pesaro | 810.35 mi (1,304.13 km) |
| Harrow Weald to Pescantina | 663.25 mi (1,067.40 km) |
| Harrow Weald to Pescara | 928.80 mi (1,494.75 km) |
| Harrow Weald to Peschiera del Garda | 659.18 mi (1,060.85 km) |
| Harrow Weald to Pescia | 737.17 mi (1,186.35 km) |
| Harrow Weald to Petilia Policastro | 1,192.31 mi (1,918.84 km) |
| Harrow Weald to Piacenza | 645.24 mi (1,038.41 km) |
| Harrow Weald to Pianella | 926.50 mi (1,491.06 km) |
| Harrow Weald to Pianezza | 576.00 mi (926.98 km) |
| Harrow Weald to Pianiga | 705.18 mi (1,134.88 km) |
| Harrow Weald to Piano di Sorrento | 1,032.32 mi (1,661.37 km) |
| Harrow Weald to Pianoro | 733.36 mi (1,180.23 km) |
