| Mason City to Malvern (Arkansas) | 606.66 mi (976.32 km) |
| Mason City to Manassas (Virginia) | 873.05 mi (1,405.04 km) |
| Mason City to Manassas Park (Virginia) | 874.36 mi (1,407.15 km) |
| Mason City to Manatí (Puerto Rico) | 2,310.50 mi (3,718.40 km) |
| Mason City to Manchester (Missouri) | 345.37 mi (555.83 km) |
| Mason City to Manchester (New Hampshire) | 1,095.08 mi (1,762.36 km) |
| Mason City to Manchester (Tennessee) | 652.88 mi (1,050.71 km) |
| Mason City to Manchester (Virginia) | 910.99 mi (1,466.10 km) |
| Mason City to Mandan (North Dakota) | 453.29 mi (729.50 km) |
| Mason City to Mandeville (Louisiana) | 899.01 mi (1,446.82 km) |
| Mason City to Mango (Florida) | 1,210.61 mi (1,948.30 km) |
| Mason City to Manhattan (Kansas) | 325.86 mi (524.43 km) |
| Mason City to Manhattan (New York) | 999.22 mi (1,608.10 km) |
| Mason City to Manhattan Beach (California) | 1,497.06 mi (2,409.29 km) |
| Mason City to Manitowoc (Wisconsin) | 283.65 mi (456.50 km) |
