| Mason City to Iver | 4,081.07 mi (6,567.84 km) |
| Mason City to Ivybridge | 3,994.32 mi (6,428.23 km) |
| Mason City to Jarrow | 3,924.35 mi (6,315.63 km) |
| Mason City to Johnstone | 3,792.35 mi (6,103.21 km) |
| Mason City to Kearsley | 3,942.81 mi (6,345.35 km) |
| Mason City to Keighley | 3,947.60 mi (6,353.04 km) |
| Mason City to Kempston | 4,059.91 mi (6,533.80 km) |
| Mason City to Kendal | 3,902.60 mi (6,280.63 km) |
| Mason City to Kenilworth | 4,013.08 mi (6,458.43 km) |
| Mason City to Kenley | 4,103.26 mi (6,603.55 km) |
| Mason City to Kensington | 4,093.40 mi (6,587.69 km) |
| Mason City to Kenton | 4,085.87 mi (6,575.57 km) |
| Mason City to Kettering | 4,041.71 mi (6,504.50 km) |
| Mason City to Kew Green | 4,091.01 mi (6,583.84 km) |
| Mason City to Keynsham | 4,011.72 mi (6,456.24 km) |
