| Clayton to Miranda de Ebro | 768.55 mi (1,236.86 km) |
| Clayton to Mislata | 990.69 mi (1,594.36 km) |
| Clayton to Moana | 855.70 mi (1,377.11 km) |
| Clayton to Moguer | 1,165.46 mi (1,875.62 km) |
| Clayton to Molina de Segura | 1,087.02 mi (1,749.39 km) |
| Clayton to Molins de Rey | 872.65 mi (1,404.39 km) |
| Clayton to Mollerusa | 848.74 mi (1,365.92 km) |
| Clayton to Mollet | 866.26 mi (1,394.11 km) |
| Clayton to Moncada | 869.35 mi (1,399.09 km) |
| Clayton to Moncada | 985.88 mi (1,586.63 km) |
| Clayton to Monforte de Lemos | 820.91 mi (1,321.12 km) |
| Clayton to Monforte del Cid | 1,065.46 mi (1,714.70 km) |
| Clayton to Mongat | 871.61 mi (1,402.72 km) |
| Clayton to Monovar | 1,061.25 mi (1,707.91 km) |
| Clayton to Monserrat | 998.26 mi (1,606.54 km) |
