| Welling to Miranda de Ebro | 622.90 mi (1,002.47 km) |
| Welling to Mislata | 828.43 mi (1,333.22 km) |
| Welling to Moana | 758.45 mi (1,220.61 km) |
| Welling to Moguer | 1,037.26 mi (1,669.31 km) |
| Welling to Molina de Segura | 928.40 mi (1,494.11 km) |
| Welling to Molins de Rey | 699.92 mi (1,126.41 km) |
| Welling to Mollerusa | 680.04 mi (1,094.43 km) |
| Welling to Mollet | 692.83 mi (1,115.01 km) |
| Welling to Moncada | 696.03 mi (1,120.15 km) |
| Welling to Moncada | 823.52 mi (1,325.33 km) |
| Welling to Monforte de Lemos | 713.94 mi (1,148.98 km) |
| Welling to Monforte del Cid | 904.67 mi (1,455.93 km) |
| Welling to Mongat | 698.02 mi (1,123.36 km) |
| Welling to Monovar | 900.94 mi (1,449.92 km) |
| Welling to Monserrat | 836.86 mi (1,346.80 km) |
