| Opalenica to Mislata | 1,194.67 mi (1,922.63 km) |
| Opalenica to Moana | 1,357.21 mi (2,184.22 km) |
| Opalenica to Moguer | 1,529.81 mi (2,461.98 km) |
| Opalenica to Molina de Segura | 1,299.39 mi (2,091.16 km) |
| Opalenica to Molins de Rey | 1,010.83 mi (1,626.77 km) |
| Opalenica to Mollerusa | 1,034.77 mi (1,665.30 km) |
| Opalenica to Mollet | 998.04 mi (1,606.19 km) |
| Opalenica to Moncada | 1,001.45 mi (1,611.68 km) |
| Opalenica to Moncada | 1,190.11 mi (1,915.30 km) |
| Opalenica to Monforte de Lemos | 1,298.38 mi (2,089.54 km) |
| Opalenica to Monforte del Cid | 1,265.99 mi (2,037.42 km) |
| Opalenica to Mongat | 999.73 mi (1,608.91 km) |
| Opalenica to Monovar | 1,266.09 mi (2,037.57 km) |
| Opalenica to Monserrat | 1,207.15 mi (1,942.72 km) |
| Opalenica to Montijo | 1,436.73 mi (2,312.19 km) |
