| Santurce-Antiguo to Melzo | 631.66 mi (1,016.55 km) |
| Santurce-Antiguo to Mendicino | 1,034.19 mi (1,664.36 km) |
| Santurce-Antiguo to Menfi | 927.26 mi (1,492.28 km) |
| Santurce-Antiguo to Mentana | 800.56 mi (1,288.37 km) |
| Santurce-Antiguo to Merano | 729.48 mi (1,173.98 km) |
| Santurce-Antiguo to Merate | 634.82 mi (1,021.65 km) |
| Santurce-Antiguo to Mercato San Severino | 927.98 mi (1,493.43 km) |
| Santurce-Antiguo to Mercogliano | 924.03 mi (1,487.08 km) |
| Santurce-Antiguo to Mesagne | 1,084.42 mi (1,745.20 km) |
| Santurce-Antiguo to Messina | 1,032.67 mi (1,661.92 km) |
| Santurce-Antiguo to Mestre | 767.04 mi (1,234.44 km) |
| Santurce-Antiguo to Mestrino | 744.03 mi (1,197.41 km) |
| Santurce-Antiguo to Milan | 620.45 mi (998.52 km) |
| Santurce-Antiguo to Milazzo | 1,016.48 mi (1,635.87 km) |
| Santurce-Antiguo to Minerbio | 725.63 mi (1,167.78 km) |
