| Port Talbot to Miranda de Ebro | 616.76 mi (992.59 km) |
| Port Talbot to Mislata | 852.73 mi (1,372.33 km) |
| Port Talbot to Moana | 683.78 mi (1,100.44 km) |
| Port Talbot to Moguer | 1,000.21 mi (1,609.68 km) |
| Port Talbot to Molina de Segura | 943.62 mi (1,518.61 km) |
| Port Talbot to Molins de Rey | 754.96 mi (1,214.99 km) |
| Port Talbot to Mollerusa | 722.89 mi (1,163.37 km) |
| Port Talbot to Mollet | 750.47 mi (1,207.76 km) |
| Port Talbot to Moncada | 753.23 mi (1,212.21 km) |
| Port Talbot to Moncada | 848.10 mi (1,364.89 km) |
| Port Talbot to Monforte de Lemos | 650.71 mi (1,047.21 km) |
| Port Talbot to Monforte del Cid | 924.84 mi (1,488.38 km) |
| Port Talbot to Mongat | 756.16 mi (1,216.91 km) |
| Port Talbot to Monovar | 920.06 mi (1,480.70 km) |
| Port Talbot to Monserrat | 859.07 mi (1,382.54 km) |
