| Ostrow Mazowiecka to Pontedera | 815.05 mi (1,311.70 km) |
| Ostrow Mazowiecka to Pontinia | 888.94 mi (1,430.61 km) |
| Ostrow Mazowiecka to Porcari | 805.47 mi (1,296.28 km) |
| Ostrow Mazowiecka to Porcia | 629.28 mi (1,012.73 km) |
| Ostrow Mazowiecka to Pordenone | 629.21 mi (1,012.61 km) |
| Ostrow Mazowiecka to Portici | 900.45 mi (1,449.13 km) |
| Ostrow Mazowiecka to Porto Empedocle | 1,144.80 mi (1,842.37 km) |
| Ostrow Mazowiecka to Porto Recanati | 749.39 mi (1,206.02 km) |
| Ostrow Mazowiecka to Porto Sant'Elpidio | 757.62 mi (1,219.27 km) |
| Ostrow Mazowiecka to Porto Tolle | 694.35 mi (1,117.44 km) |
| Ostrow Mazowiecka to Porto Torres | 1,040.68 mi (1,674.82 km) |
| Ostrow Mazowiecka to Portoferraio | 872.22 mi (1,403.70 km) |
| Ostrow Mazowiecka to Portogruaro | 633.02 mi (1,018.75 km) |
| Ostrow Mazowiecka to Portomaggiore | 723.11 mi (1,163.73 km) |
| Ostrow Mazowiecka to Potenza | 888.12 mi (1,429.28 km) |
