| Mason City to Melzo | 4,692.00 mi (7,551.04 km) |
| Mason City to Mendicino | 5,237.53 mi (8,428.99 km) |
| Mason City to Menfi | 5,191.89 mi (8,355.54 km) |
| Mason City to Mentana | 4,971.78 mi (8,001.31 km) |
| Mason City to Merano | 4,703.87 mi (7,570.15 km) |
| Mason City to Merate | 4,683.77 mi (7,537.81 km) |
| Mason City to Mercato San Severino | 5,110.10 mi (8,223.91 km) |
| Mason City to Mercogliano | 5,102.52 mi (8,211.71 km) |
| Mason City to Mesagne | 5,233.85 mi (8,423.07 km) |
| Mason City to Messina | 5,264.98 mi (8,473.16 km) |
| Mason City to Mestre | 4,796.25 mi (7,718.82 km) |
| Mason City to Mestrino | 4,780.91 mi (7,694.13 km) |
| Mason City to Milan | 4,685.01 mi (7,539.80 km) |
| Mason City to Milazzo | 5,251.58 mi (8,451.60 km) |
| Mason City to Minerbio | 4,807.87 mi (7,737.51 km) |
