| Portales to Miranda de Ebro | 5,132.85 mi (8,260.52 km) |
| Portales to Mislata | 5,364.22 mi (8,632.87 km) |
| Portales to Moana | 4,892.20 mi (7,873.24 km) |
| Portales to Moguer | 5,154.70 mi (8,295.69 km) |
| Portales to Molina de Segura | 5,383.99 mi (8,664.69 km) |
| Portales to Molins de Rey | 5,392.54 mi (8,678.46 km) |
| Portales to Mollerusa | 5,336.48 mi (8,588.23 km) |
| Portales to Mollet | 5,395.89 mi (8,683.85 km) |
| Portales to Moncada | 5,396.89 mi (8,685.46 km) |
| Portales to Moncada | 5,362.34 mi (8,629.86 km) |
| Portales to Monforte de Lemos | 4,939.09 mi (7,948.69 km) |
| Portales to Monforte del Cid | 5,393.01 mi (8,679.21 km) |
| Portales to Mongat | 5,401.53 mi (8,692.93 km) |
| Portales to Monovar | 5,385.94 mi (8,667.84 km) |
| Portales to Monserrat | 5,360.53 mi (8,626.94 km) |
