| Ostrow Mazowiecka to Azcoitia | 1,292.70 mi (2,080.40 km) |
| Ostrow Mazowiecka to Azpeitia | 1,290.82 mi (2,077.37 km) |
| Ostrow Mazowiecka to Azuqueca de Henares | 1,449.84 mi (2,333.29 km) |
| Ostrow Mazowiecka to Badajoz | 1,672.07 mi (2,690.94 km) |
| Ostrow Mazowiecka to Badalona | 1,206.14 mi (1,941.09 km) |
| Ostrow Mazowiecka to Baena | 1,635.89 mi (2,632.71 km) |
| Ostrow Mazowiecka to Baeza | 1,586.12 mi (2,552.62 km) |
| Ostrow Mazowiecka to Bailen | 1,591.85 mi (2,561.84 km) |
| Ostrow Mazowiecka to Balaguer | 1,239.43 mi (1,994.67 km) |
| Ostrow Mazowiecka to Banolas | 1,152.77 mi (1,855.21 km) |
| Ostrow Mazowiecka to Baranain | 1,284.64 mi (2,067.43 km) |
| Ostrow Mazowiecka to Barbadanes | 1,552.33 mi (2,498.24 km) |
| Ostrow Mazowiecka to Barbastro | 1,252.46 mi (2,015.65 km) |
| Ostrow Mazowiecka to Barcelona | 1,210.70 mi (1,948.43 km) |
| Ostrow Mazowiecka to Bargas | 1,508.35 mi (2,427.45 km) |
