| Mason City to Montevarchi | 4,861.20 mi (7,823.35 km) |
| Mason City to Monticello Conte Otto | 4,767.41 mi (7,672.40 km) |
| Mason City to Montichiari | 4,731.89 mi (7,615.24 km) |
| Mason City to Montignoso | 4,786.26 mi (7,702.75 km) |
| Mason City to Montopoli in Val d'Arno | 4,824.07 mi (7,763.59 km) |
| Mason City to Monza | 4,682.98 mi (7,536.53 km) |
| Mason City to Morbegno | 4,669.58 mi (7,514.97 km) |
| Mason City to Mori | 4,734.21 mi (7,618.97 km) |
| Mason City to Morlupo | 4,960.37 mi (7,982.94 km) |
| Mason City to Morrovalle | 4,946.04 mi (7,959.88 km) |
| Mason City to Mortara | 4,678.11 mi (7,528.68 km) |
| Mason City to Mosciano Sant'Angelo | 4,983.74 mi (8,020.56 km) |
| Mason City to Motta di Livenza | 4,796.48 mi (7,719.20 km) |
| Mason City to Motta Sant'Anastasia | 5,275.78 mi (8,490.54 km) |
| Mason City to Mottola | 5,202.22 mi (8,372.17 km) |
