| Mason City to Miranda de Ebro | 4,321.01 mi (6,953.99 km) |
| Mason City to Mislata | 4,557.17 mi (7,334.06 km) |
| Mason City to Moana | 4,089.01 mi (6,580.63 km) |
| Mason City to Moguer | 4,365.98 mi (7,026.37 km) |
| Mason City to Molina de Segura | 4,582.18 mi (7,374.31 km) |
| Mason City to Molins de Rey | 4,577.83 mi (7,367.30 km) |
| Mason City to Mollerusa | 4,522.58 mi (7,278.39 km) |
| Mason City to Mollet | 4,580.72 mi (7,371.95 km) |
| Mason City to Moncada | 4,581.84 mi (7,373.76 km) |
| Mason City to Moncada | 4,555.08 mi (7,330.70 km) |
| Mason City to Monforte de Lemos | 4,133.47 mi (6,652.18 km) |
| Mason City to Monforte del Cid | 4,589.46 mi (7,386.03 km) |
| Mason City to Mongat | 4,586.42 mi (7,381.13 km) |
| Mason City to Monovar | 4,582.41 mi (7,374.67 km) |
| Mason City to Monserrat | 4,554.08 mi (7,329.08 km) |
