| Mason City to Manerbio | 4,724.53 mi (7,603.40 km) |
| Mason City to Manfredonia | 5,112.34 mi (8,227.52 km) |
| Mason City to Maniago | 4,782.70 mi (7,697.01 km) |
| Mason City to Mantova | 4,758.31 mi (7,657.76 km) |
| Mason City to Maranello | 4,789.21 mi (7,707.49 km) |
| Mason City to Marano di Napoli | 5,082.46 mi (8,179.43 km) |
| Mason City to Marano Vicentino | 4,757.41 mi (7,656.31 km) |
| Mason City to Marcianise | 5,080.54 mi (8,176.34 km) |
| Mason City to Marcon | 4,795.57 mi (7,717.73 km) |
| Mason City to Mareno di Piave | 4,784.41 mi (7,699.77 km) |
| Mason City to Margherita di Savoia | 5,133.85 mi (8,262.13 km) |
| Mason City to Mariano Comense | 4,674.49 mi (7,522.86 km) |
| Mason City to Marigliano | 5,090.97 mi (8,193.13 km) |
| Mason City to Marino | 4,984.07 mi (8,021.09 km) |
| Mason City to Marostica | 4,763.45 mi (7,666.03 km) |
