| Portet-sur-Garonne to Mendicino | 819.66 mi (1,319.12 km) |
| Portet-sur-Garonne to Menfi | 730.56 mi (1,175.72 km) |
| Portet-sur-Garonne to Mentana | 579.23 mi (932.19 km) |
| Portet-sur-Garonne to Merano | 522.59 mi (841.03 km) |
| Portet-sur-Garonne to Merate | 422.31 mi (679.64 km) |
| Portet-sur-Garonne to Mercato San Severino | 709.15 mi (1,141.27 km) |
| Portet-sur-Garonne to Mercogliano | 704.75 mi (1,134.18 km) |
| Portet-sur-Garonne to Mesagne | 864.04 mi (1,390.54 km) |
| Portet-sur-Garonne to Messina | 824.44 mi (1,326.81 km) |
| Portet-sur-Garonne to Mestre | 550.33 mi (885.68 km) |
| Portet-sur-Garonne to Mestrino | 527.37 mi (848.72 km) |
| Portet-sur-Garonne to Milan | 406.29 mi (653.85 km) |
| Portet-sur-Garonne to Milazzo | 808.86 mi (1,301.74 km) |
| Portet-sur-Garonne to Minerbio | 505.05 mi (812.80 km) |
| Portet-sur-Garonne to Minervino Murge | 767.27 mi (1,234.80 km) |
