| Portales to Manerbio | 5,549.92 mi (8,931.74 km) |
| Portales to Manfredonia | 5,937.75 mi (9,555.89 km) |
| Portales to Maniago | 5,608.82 mi (9,026.52 km) |
| Portales to Mantova | 5,583.79 mi (8,986.24 km) |
| Portales to Maranello | 5,614.39 mi (9,035.49 km) |
| Portales to Marano di Napoli | 5,906.70 mi (9,505.92 km) |
| Portales to Marano Vicentino | 5,583.25 mi (8,985.38 km) |
| Portales to Marcianise | 5,904.94 mi (9,503.08 km) |
| Portales to Marcon | 5,621.53 mi (9,046.98 km) |
| Portales to Mareno di Piave | 5,610.44 mi (9,029.14 km) |
| Portales to Margherita di Savoia | 5,959.21 mi (9,590.42 km) |
| Portales to Mariano Comense | 5,499.77 mi (8,851.02 km) |
| Portales to Marigliano | 5,915.38 mi (9,519.88 km) |
| Portales to Marino | 5,808.18 mi (9,347.37 km) |
| Portales to Marostica | 5,589.35 mi (8,995.18 km) |
