| Ostrow Mazowiecka to Masquefa | 1,217.41 mi (1,959.23 km) |
| Ostrow Mazowiecka to Matadepera | 1,204.91 mi (1,939.11 km) |
| Ostrow Mazowiecka to Mazarron | 1,530.14 mi (2,462.52 km) |
| Ostrow Mazowiecka to Meco | 1,452.55 mi (2,337.65 km) |
| Ostrow Mazowiecka to Medina del Campo | 1,478.38 mi (2,379.22 km) |
| Ostrow Mazowiecka to Medina Sidonia | 1,753.85 mi (2,822.55 km) |
| Ostrow Mazowiecka to Mejorada del Campo | 1,462.37 mi (2,353.46 km) |
| Ostrow Mazowiecka to Meliana | 1,394.84 mi (2,244.77 km) |
| Ostrow Mazowiecka to Mengibar | 1,599.30 mi (2,573.83 km) |
| Ostrow Mazowiecka to Merida | 1,646.60 mi (2,649.94 km) |
| Ostrow Mazowiecka to Miajadas | 1,624.27 mi (2,614.01 km) |
| Ostrow Mazowiecka to Mieres | 1,426.71 mi (2,296.07 km) |
| Ostrow Mazowiecka to Miguelturra | 1,553.78 mi (2,500.57 km) |
| Ostrow Mazowiecka to Mijas | 1,700.32 mi (2,736.40 km) |
| Ostrow Mazowiecka to Miranda de Ebro | 1,338.83 mi (2,154.63 km) |
