| Portet-sur-Garonne to Minturno | 648.18 mi (1,043.15 km) |
| Portet-sur-Garonne to Mira | 544.66 mi (876.55 km) |
| Portet-sur-Garonne to Mirandola | 487.35 mi (784.32 km) |
| Portet-sur-Garonne to Mirano | 543.88 mi (875.29 km) |
| Portet-sur-Garonne to Misano Adriatico | 564.13 mi (907.88 km) |
| Portet-sur-Garonne to Misilmeri | 734.36 mi (1,181.85 km) |
| Portet-sur-Garonne to Missaglia | 417.72 mi (672.26 km) |
| Portet-sur-Garonne to Misterbianco | 824.54 mi (1,326.97 km) |
| Portet-sur-Garonne to Modena | 478.52 mi (770.10 km) |
| Portet-sur-Garonne to Modica | 839.97 mi (1,351.79 km) |
| Portet-sur-Garonne to Modugno | 802.41 mi (1,291.35 km) |
| Portet-sur-Garonne to Mogliano Veneto | 551.17 mi (887.02 km) |
| Portet-sur-Garonne to Molfetta | 790.93 mi (1,272.88 km) |
| Portet-sur-Garonne to Molinella | 514.60 mi (828.17 km) |
| Portet-sur-Garonne to Moncalieri | 326.95 mi (526.17 km) |
