| Barreiro to Mislata | 467.22 mi (751.92 km) |
| Barreiro to Moana | 250.44 mi (403.04 km) |
| Barreiro to Moguer | 154.84 mi (249.19 km) |
| Barreiro to Molina de Segura | 427.45 mi (687.91 km) |
| Barreiro to Molins de Rey | 615.67 mi (990.83 km) |
| Barreiro to Mollerusa | 564.21 mi (908.01 km) |
| Barreiro to Mollet | 627.54 mi (1,009.94 km) |
| Barreiro to Moncada | 625.55 mi (1,006.73 km) |
| Barreiro to Moncada | 468.66 mi (754.24 km) |
| Barreiro to Monforte de Lemos | 278.14 mi (447.62 km) |
| Barreiro to Monforte del Cid | 450.91 mi (725.67 km) |
| Barreiro to Mongat | 629.78 mi (1,013.54 km) |
| Barreiro to Monovar | 444.76 mi (715.77 km) |
| Barreiro to Monserrat | 456.71 mi (735.00 km) |
| Barreiro to Montijo | 132.97 mi (213.99 km) |
