| Mason City to Kanjiza | 5,042.50 mi (8,115.12 km) |
| Mason City to Kikinda | 5,067.46 mi (8,155.30 km) |
| Mason City to Kladovo | 5,201.34 mi (8,370.75 km) |
| Mason City to Knic | 5,171.84 mi (8,323.28 km) |
| Mason City to Knjazevac | 5,251.51 mi (8,451.49 km) |
| Mason City to Koceljeva | 5,113.00 mi (8,228.57 km) |
| Mason City to Kosjeric | 5,140.09 mi (8,272.18 km) |
| Mason City to Kovacica | 5,109.04 mi (8,222.21 km) |
| Mason City to Kovin | 5,138.77 mi (8,270.04 km) |
| Mason City to Kragujevac | 5,174.61 mi (8,327.73 km) |
| Mason City to Kraljevo | 5,180.48 mi (8,337.17 km) |
| Mason City to Krupanj | 5,102.92 mi (8,212.36 km) |
| Mason City to Krusevac | 5,209.51 mi (8,383.90 km) |
| Mason City to Kucevo | 5,175.83 mi (8,329.69 km) |
| Mason City to Kula | 5,047.99 mi (8,123.95 km) |
