| Ostrow Mazowiecka to Montilla | 1,649.16 mi (2,654.06 km) |
| Ostrow Mazowiecka to Montmelo | 1,199.40 mi (1,930.25 km) |
| Ostrow Mazowiecka to Montornes del Valles | 1,199.32 mi (1,930.12 km) |
| Ostrow Mazowiecka to Montoro | 1,617.79 mi (2,603.58 km) |
| Ostrow Mazowiecka to Monzon | 1,256.17 mi (2,021.61 km) |
| Ostrow Mazowiecka to Mora | 1,511.76 mi (2,432.95 km) |
| Ostrow Mazowiecka to Moralzarzal | 1,471.14 mi (2,367.56 km) |
| Ostrow Mazowiecka to Moron de la Frontera | 1,702.87 mi (2,740.51 km) |
| Ostrow Mazowiecka to Mostoles | 1,483.57 mi (2,387.57 km) |
| Ostrow Mazowiecka to Motril | 1,652.52 mi (2,659.47 km) |
| Ostrow Mazowiecka to Muchamiel | 1,456.60 mi (2,344.18 km) |
| Ostrow Mazowiecka to Mula | 1,512.69 mi (2,434.44 km) |
| Ostrow Mazowiecka to Munguia | 1,306.05 mi (2,101.88 km) |
| Ostrow Mazowiecka to Murcia | 1,503.08 mi (2,418.97 km) |
| Ostrow Mazowiecka to Muro del Alcoy | 1,436.90 mi (2,312.47 km) |
