| Sluis to Mislata | 837.85 mi (1,348.39 km) |
| Sluis to Moana | 845.41 mi (1,360.55 km) |
| Sluis to Moguer | 1,091.15 mi (1,756.04 km) |
| Sluis to Molina de Segura | 942.71 mi (1,517.14 km) |
| Sluis to Molins de Rey | 686.72 mi (1,105.17 km) |
| Sluis to Mollerusa | 678.90 mi (1,092.58 km) |
| Sluis to Mollet | 677.52 mi (1,090.36 km) |
| Sluis to Moncada | 680.98 mi (1,095.93 km) |
| Sluis to Moncada | 832.86 mi (1,340.36 km) |
| Sluis to Monforte de Lemos | 794.39 mi (1,278.45 km) |
| Sluis to Monforte del Cid | 915.41 mi (1,473.22 km) |
| Sluis to Mongat | 682.01 mi (1,097.59 km) |
| Sluis to Monovar | 912.67 mi (1,468.79 km) |
| Sluis to Monserrat | 847.82 mi (1,364.43 km) |
| Sluis to Montijo | 983.74 mi (1,583.17 km) |
