| Mason City to Kalispell (Montana) | 1,074.15 mi (1,728.68 km) |
| Mason City to Kaneohe (Hawaii) | 3,955.19 mi (6,365.26 km) |
| Mason City to Kankakee (Illinois) | 307.73 mi (495.25 km) |
| Mason City to Kannapolis (North Carolina) | 853.81 mi (1,374.07 km) |
| Mason City to Kansas City (Kansas) | 289.48 mi (465.87 km) |
| Mason City to Kansas City (Missouri) | 286.87 mi (461.68 km) |
| Mason City to Kapaa (Hawaii) | 4,004.62 mi (6,444.81 km) |
| Mason City to Kapolei (Hawaii) | 3,972.01 mi (6,392.33 km) |
| Mason City to Katy (Texas) | 934.37 mi (1,503.72 km) |
| Mason City to Kaukauna (Wisconsin) | 258.48 mi (415.99 km) |
| Mason City to Kaysville (Utah) | 970.18 mi (1,561.35 km) |
| Mason City to Kearney (Missouri) | 268.95 mi (432.83 km) |
| Mason City to Kearney (Nebraska) | 346.40 mi (557.48 km) |
| Mason City to Kearns (Utah) | 980.41 mi (1,577.82 km) |
| Mason City to Kearny (New Jersey) | 992.05 mi (1,596.55 km) |
